СТАБИЛИЗИРОВАННАЯ ВОДНАЯ КОМПОЗИЦИЯ ДЛЯ ИНИЦИИРОВАНИЯ СХВАТЫВАНИЯ И ОТВЕРЖДЕНИЯ КОМПОЗИЦИЙ ГЛИНОЗЕМИСТОГО ЦЕМЕНТА

Группа изобретений относится к относится к долговременно стабилизированной водной композиции инициатора для инициирования схватывания и отверждения композиций глиноземистого цемента, к способу получения этой долговременно стабилизированной водной композиции инициатора, а также к применению вышеуказанной композиции в системе для химического закрепления крепежных средств в минеральных поверхностях. Композиция инициатора содержит по меньшей мере один компонент активатора, по меньшей мере один компонент ускорителя, по меньшей мере один замедлитель схватывания, по меньшей мере один минеральный наполнитель, по меньшей мере один загущающий агент и воду. По меньшей мере один компонент активатора содержит по меньшей мере одну соль натрия или лития, выбранную из группы, состоящей из гидроксидов, хлоридов, сульфатов, фосфатов, моногидрофосфатов, дигидрофосфатов, нитратов и их смесей. По меньшей мере один компонент ускорителя содержит по меньшей мере одну соль натрия или лития, выбранную из группы, ...

ОГНЕСТОЙКОЕ ПОКРЫТИЕ И ОГНЕЗАЩИТНАЯ НАНОСИМАЯ РАСПЫЛЕНИЕМ ВЯЖУЩАЯ КОМПОЗИЦИЯ ДЛЯ ВЫСОКОПРОЧНОГО БЕТОНА ХОЛОДНОГО ПЛАВЛЕНИЯ С КОНТРОЛИРУЕМОЙ ПЛОТНОСТЬЮ

FIELD: construction. SUBSTANCE: group of inventions relates to construction. Fire-resistant geopolymer coating which does not contain portland cement, suitable for application by spraying or spreading and having a given equilibrium density, selected from a group consisting of densities of about 240, 400, 641 and 801 kilograms per cubic meter, as well as compression strength in the range of approximately 1.4–20.7 MPa, contains: 15–50 wt. % of at least one light filler having bulk density less than 1.0 and diameter from about 0.025 mm to about 12.5 mm, wherein in the case of the sprayed coating, said at least one light aggregate contains at least two aggregates; 5–60 wt. % of at least one alkali-activated binder; 2–15 wt. % of at least one activator for said alkali-activated binder, other than liquid alkali metal hydroxide; 1–15 wt. % of at least one setting retarder; 0.01–5 wt. % of at least one material selected from protein or synthetic protein material; 0.01–5 wt. % of at least one alkali-resistant fibre; 0.01–2 wt. % of magnesium oxide in an amount sufficient to control shrinkage of said mixture during solidification; water. EFFECT: technical result is higher heat resistance, compression strength, adhesion strength and protection against corrosion on steel components. 12 cl, 17 tbl, 13 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 721 988 C1 (51) МПК C04B 41/50 (2006.01) C04B 28/00 (2006.01) C04B 111/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 41/50 (2019.08); C04B 28/00 (2019.08) (21)(22) Заявка: 2019105710, 31.07.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ГЕОПОЛИМЕР СОЛЮШНЗ ЭлЭлСи (US) Дата регистрации: 25.05.2020 04.08.2016 US 15/228,829; 30.03.2017 US 15/474,074 (45) Опубликовано: 25.05.2020 Бюл. № 15 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.03.2019 (86) Заявка PCT: 2 7 2 1 9 8 8 (56) Список документов, цитированных в отчете о ...

Rasch abbindende Portlandzementzusammensetzung und Verfahren zur Herstellung eines modifizierten Portlandzements

Ettringite fibres prodn., suitable for replacing asbestos fibres - by simultaneous hydration of calcium aluminate and sulphate with rapid stirring

Prodn. of ettringite (3CaO.Al2O3.3CaSO4.32H2O) involves the simultaneous hydration of a stoichiometric mixt. of Ca aluminate and Ca sulphate at 20-90 degrees C with water in at least the stoichiometric amt. and not more than the amt. giving a prod. contg. 5 wt.% ettringite (dry) and 95 wt.% water. The stoichiometry is defined by >=1 of 5 specified equations. Quicklime or slaked lime is added in an amt. liberating Ca++ ions giving the stoichiometric equilibrium for ettringite formation, as in the parent patent. The improvement comprises formation of ettringite fibres by addn. of water in such an amt. that the prod. contains is not >25% solids and carrying out the reaction with continuous stirring at 1-5 times the intensity needed to maintain a homogeneous suspension. The original process is extended to allow the prodn. of fibres, e.g. 1-350 mu m long. These can be used as (partial) substitute for asbestos fibres, e.g. for the prodn. of asbestos cement materials or coatings or binders for ...

Extended-life calcium aluminophosphate cement compositions

Methods, compositions, and systems for cementing are included. The method comprises providing an extended-life calcium aluminophosphate cement composition comprising calcium aluminate cement, a polyphosphate, water, and a cement set retarder. The method further comprises mixing the extended-life calcium aluminophosphate cement composition with a cement set activator to activate the extended-life calcium aluminophosphate cement composition, introducing the activated extended-life calcium aluminophosphate cement composition into a subterranean formation, and allowing the activated extended-life calcium aluminophosphate cement composition to set in the subterranean formation.

Plugging and abandning a well using extended-life cement composiions

FORMS TO THE PRODUCTION OF CERAMIC ARTICLES OR SUCH A THING BY PRESSES

Fireproof compositions and materials

The present invention relates to a composition in the form of a mixture comprising F-type fly ash, a reactive silicon source, a setting accelerator and a light aggregate with a density of less than 900 kg/m ...

Method for producing ternesite

The invention relates to a method for producing terensite-clinkers comprising 20 - 95 wt.-% C ...

Dry mortar, mortar slurry and method for producing semi-rigid coatings

The present invention relates to a dry mortar and a mortar slurry, and a method for producing semi-rigid coatings. In one embodiment, the dry mortar and/or mortar slurry comprises a cement, a very fine component, and a superplasticizer and is free of silica fume, wherein the mortar slurry can be applied at an asphalt framework temperature between 55 and 80 °C, and a compressive strength of at least 100 N/mm2 is reached after 28 days. In a further embodiment, the dry mortar and/or mortar slurry additionally contains a gelling agent to reduce the propensity of the mortar slurry to flow out.

MODIFIED GEOPOLYMER AND MODIFIED GEOPOLYMER COMPOSITE AND PROCESS FOR THE PRODUCTION THEREOF

The invention relates to a modified geopolymer and a modified geopolymer composite comprising additive. The additive is preferably an athermanous additive. The modification is with one or more water-soluble compounds, the water-soluble compound is preferably selected from phosphorus compounds, nitrogen compounds, copper compounds, silver compounds, zinc compounds, tin compounds and magnesium compounds. Also, it relates to compositions which contain the modified geopolymer or modified geopolymer composite. The compositions preferably comprise vinyl aromatic polymer and are in the form of a foam.

DOWNHOLE FLUIDS AND METHODS OF USE THEREOF

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.

TERNESITE AS ACTIVATOR FOR LATENTLY HYDRAULIC AND POZZOLANIC MATERIALS

The invention relates to a binding agent based on latent-hydraulic and/or pozzolanic materials, which are activated by adding ternesite (C5S2$).

Verfahren zum Wasserdichtmachen von zementhaltigen Baustoffen.

Liant hydraulique à prise accélérée

METHOD AND ADDITIVE FOR CONDENSATE INCREASE EARLY STRENGTH

METHOD OF PRODUCING TERNESITA

METHOD OF PRODUCING TERNESIT - BELITE - CALCIUM - SULFOALYuMINATNOGO CLINKER

Method for producing a magnesium silicate belite calcium aluminate cement

METHOD OF PRODUCING MAGNESIUM - SILICATE - BELITE - CALCIUM - ALUMINATE CEMENT

MODIFIED GEOPOLIMER AND COMPOSITE BASED ON MODIFIED THE GEO-POLYMER AND METHOD OF THEIR PRODUCTION

Moulds for the formation by pressing of ceramic or similar objects

CEMENT COMPOSITIONS WITH ALUMINOPHOSPHATE CALCIUM WITH EXTENDED LONGEVITY

La présente divulgation concerne des procédés, des compositions et des systèmes de cimentation. Le procédé comprend l'utilisation d'une composition de ciment à base d'aluminophosphate de calcium à durée de vie prolongée (14) contenant du ciment à base d'aluminate de calcium, un polyphosphate, de l'eau et un retardateur de prise de ciment. Le procédé comprend en outre le mélange de la composition de ciment à base d'aluminophosphate de calcium à durée de vie prolongée (14) avec un activateur de prise de ciment pour activer la composition de ciment à base d'aluminophosphate de calcium à durée de vie prolongée (14), l'introduction de la composition de ciment à base d'aluminophosphate de calcium à durée de vie prolongée dans une formation souterraine (20), et le fait de laisser la composition de ciment à base d'aluminophosphate de calcium à durée de vie prolongée (14) prendre dans la formation souterraine (20). The present disclosure relates to methods, compositions and systems for cementing. The method comprises the use of a long life calcium aluminophosphate cement composition (14) containing calcium aluminate cement, polyphosphate, water and set retarder of cement. The method further comprises mixing the extended-life calcium aluminophosphate cement composition (14) with a cement-setting activator to activate the calcium-aluminoxide-based cementitious cementitious composition. prolonged life (14), introducing the extended-life calcium aluminophosphate cement composition into an underground formation (20), and leaving the calcium aluminophosphate cement composition long-lived (14) take in the underground formation (20).

ADMIXTURE COMPOSITION FOR FINE BLAST FURNACE SLAG POWDER AND BLAST FURNACE SLAG CEMENT COMPOSITION USING SAME

The present invention relates to an admixture composition for fine blast furnace slag powder. More specifically, the present invention relates to an admixture composition for fine blast furnace slag powder, intended to increase activities of slag by being added into cement containing blast furnace slag as a main component. The present invention further relates to a blast furnace slag cement composition using the same. To this end, the admixture composition consists of: 100 parts by weight of dodecacalcium hepta-aluminate; 10-30 parts by weight of anhydrite; 3-5 parts by weight of acrylic acid n-butyl ester; 3-5 parts by weight of methyl methacrylate; 0.1-1 parts by weight of benzoyl peroxide; 5-15 parts by weight of tartaric acid; and 20-40 parts by weight of ethylenediaminetetraacetic acid (EDTA). COPYRIGHT KIPO 2017 (AA) Water (BB,D1,D2) Blast furnace slag (CC) Latent hydraulic properties induction (Addition of an irritant) ...

CEMENT-BASED GEL TYPE INJECTION MATERIAL COMPOSITION AND GROUND REINFORCING METHOD USING SAME

The present invention relates to a cement-based gel type injection material composition which is for ground consolidation, charge, and reinforcement on a cavity and a soft ground generated during civil engineering construction using a connection material in which the reduction slag of an electric furnace generated during the steel manufacturing process is ground and processed. According to the present invention, a main slurry composition includes 65-120 parts by weight of water in comparison with 100 parts by weight of a main powder material. The main powder material comprises: 10-60 wt% of a calcium aluminate composite (CAC) in which the reduction slag of the electric furnace generated in a melted state during the steel manufacture process is sprayed into the air by high pressure gas and is ground at 3,000-12,000 cm^2/g of fineness after rapidly cooling the reduction slag within seconds; 5-20 wt% of a quick setting modifier; and 20-70 wt% of fly ash. An activation slurry composition includes ...

METHOD FOR PRODUCING TERNESITE-BELITE CALCIUM SULFOALUMINATE CLINKER

준설토 중의 유기물 함유 모래를 이용한 모르타르용 조성물

... 본 발명은 준설토 중의 유기물 함유 모래를 이용한 모르타르용 조성물에 관한 것이다.본 발명의 본 발명의 준설토 중의 유기물 함유 모래를 이용한 모르타르용 조성물은 상기한 과제를 해결하기 위하여, 준설토를 탈수 처리하여 수득한 유기물이 함유된 모래와; 시멘트와; 황산염 5 ~ 10 중량%, 아황산염 3 ~ 5 중량%, 탄산염 5 ~ 10 중량%, 인산염 5 ~ 10 중량%, 피로인산염 3 ~ 5 중량%, 알루민산염 3 ~ 5 중량%, 유기산 1 ~ 3 중량% 및 잔량의 염화물로 구성되어 있는 첨가제;를 포함하여 구성된다.본 발명에 의해, 준설토 중의 유기물 함유 모래를 이용한 모르타르용 조성물은 상기와 같은 종래 기술에서 발생하는 문제점을 해소하기 위한 것으로, 하천 등의 준설에 의해 발생하는 준설토 중의 유기물이 함유된 모래(파우더)를 원료로 하여 다양한 도로 의 기저층 시공에 사용되는 모르타르용 조성물을 제조할 수 있게 된다. 보다 구체적으로, 준설토 중의 유기물 함유 모래에 별도의 열과 압력을 가하지 않은 채, 특정 성분의 첨가제를 더 첨가함으로써 상온에서의 성형이 용이하고, 보다 강도가 높은 제품을 제조할 수 있는 모르타르용 조성물이 제공된다. 더불어, 준설토 중의 유기물 함유 모래와, 특정 성분의 첨가제를 적정 배합함으로써 시멘트와 같은 결합재의 사용량을 최소화할 수 있게 된다.

내구성능 강화형 모르타르 조성물 및 이를 이용한 도로시설물 콘크리트의 보수공법

본 발명은 잔골재 10 내지 80 중량%, 내구성능 강화형 무기 결합재 10 내지 80 중량%, 내구성능 강화형 폴리머 혼화제 1 내지 20 중량% 및 물 5 내지 35 중량%를 포함하되; 상기 내구성능 강화형 무기 결합재는 조강 포틀랜드 시멘트 100 중량부에 대하여, 백색 시멘트 30 내지 50 중량부, 칼슘 알루미네이트 10 내지 30 중량부, 카올리나이트 10 내지 30 중량부, 스테아린산 알루미늄 1 내지 10 중량부, 젠노타임(Xenotime) 0.1 내지 5 중량부 및 스멕타이트 0.1 내지 5 중량부를 포함하는 것이고; 상기 내구성능 강화형 폴리머 혼화제는 에틸렌-초산비닐 공중합체 100 중량부에 대하여, 부틸(메트)아크릴레이트-부타디엔 공중합체 30 내지 50 중량부, 실리콘-(메트)아크릴산 공중합체 30 내지 50 중량부, 하기 화학식 1로 표시되는 실란 고분자 10 내지 30 중량부, 규소-함유 페로센 화합물 1 내지 10 중량부, 박테리아 셀룰로오스-이산화티타늄 복합체 1 내지 10 중량부 및 피록톤올아민 0.1 내지 5 중량부를 포함하는 것을 사용함으로써; 고속도로의 중앙 분리벽, 도로경계석, 교량의 콘크리트 슬래브, 도로 노면, 도로 측구, 교량 날개벽, 교각, 도로 통로 암거, 교량 하부 부분 등의 외부로 노출된 도로시설물 콘크리트의 보수효과를 향상시킬 수 있도록, 우수한 균열저항성, 초기 및 장기강도 및 속경성과, 우수한 내염해성, 중성화 저항성, 방수성, 내산성, 내알칼리성, 내마모성, 동결융해저항성, 내열성, 단열성, 탈취성, 항균성, 내오염성, 자기보수성 등의 내구성을 제공할 수 있는 내구성능 강화형 모르타르 조성물 및 이를 이용한 도로시설물 콘크리트의 보수공법에 관한 것이다. [화학식 1] The present invention includes 10 to 80% by weight of fine aggregate, 10 to 80% by weight of a durability enhancing inorganic binder, 1 to 20% by weight of a durability enhancing type polymer admixture, and 5 to 35% by weight of water; The durability enhancing inorganic binder includes 30 to 50 parts by weight of white cement, 10 to 30 parts by weight of calcium aluminate, 10 to 30 parts by weight of kaolinite, 1 to 10 parts by weight of aluminum stearate, and 100 parts by weight of early strong Portland cement. It includes 0.1 to 5 parts by weight of Notime (Xenotime) and 0.1 to 5 parts by weight of smectite; The durability enhancing polymer admixture is based on 100 parts by weight of ethylene-vinyl acetate copolymer, 30 to 50 parts by weight of butyl (meth)acrylate-butadiene copolymer, 30 to 50 parts by weight of silicone-(meth)acrylic acid copolymer, 10 to 30 parts by weight of a silane polymer represented by the following formula (1), 1 to 10 parts by weight of a silicon-containing ferrocene compound, 1 to 10 parts by weight of a bacterial cellulose-titanium dioxide complex, and 0.1 to 5 parts by weight of ...

Modified geopolymer and modified geopolymer composite and process for the production thereof

PORTLAND CEMENT COMPOSITION HAVING AN ACCELERATED SET

STRENGTH ENHANCING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS

A strength enhancing admixture for cementitious and/or pozzolanic compositions including, based on the total dry weight of the admixture, calcium silicate hydrate in an amount of from about 0.5 to about 94 weight percent, and: i) at least one alkanolamine in an amount of from about 0.5 to about 55 weight percent; ii) at least one inorganic accelerator in an amount of from about 0.5 to about 85 weight percent; and iii) at least one carbohydrate in an amount of from about 0.5 to about 50 weight percent; wherein the calcium silicate hydrate includes a product of a reaction of a water-soluble calcium compound with a water-soluble silicate compound in presence of a water-soluble dispersant; and wherein the at least one inorganic accelerator includes any inorganic accelerator(s) other than calcium silicate hydrate.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

ГЕОПОЛИМЕРНАЯ КОМПОЗИЦИЯ С УСТОЙЧИВЫМИ РАЗМЕРАМИ И СПОСОБ

Изобретение относится к геополимерным композициям на основе алюмосиликатов. Алюмосиликатная геополимерная композиция, содержащая продукт взаимодействия воды, химического активатора из группы, состоящей из соли щелочного металла, основания щелочного металла и их смесей, и вяжущего реакционно-способного материала, содержащего термоактивированный алюмосиликатный минерал - ТААСМ, цемент на основе сульфоалюмината кальция - САК и сульфат кальция из группы, состоящей из дигидрата сульфата кальция, гемигидрата сульфата кальция, безводного сульфата кальция и их смесей, где массовое отношение химического активатора к указанному вяжущему материалу составляет от примерно 1 до примерно 6:100, указанный вяжущий материал содержит: от примерно 33 до примерно 97 масс.% ТААСМ, от примерно 1 до примерно 40 масс.% цемента на основе САК, от примерно 1 до примерно 40 масс.% сульфата кальция. Способ получения указанной выше композиции, включающий взаимодействие смеси: воды, химического активатора, указанного ...

Mineralischer Füllstoff und Baustoff-Additiv auf Basis von Calciumaluminiumsulfat und deren Herstellung und Verwendung

The invention concerns a process for preparing a precipitate based on calcium aluminium sulphate (CASUL), optionally mixed and/or chemically bonded with silicate. According to the invention, a dilute aqueous sulphate-containing solution and one or a plurality of reactive calcium compounds and optionally one or a plurality of silicate compounds are added to a dilute aqueous alkali sodium aluminate solution. The resultant crystalline precipitate is separated by sedimentation, optionally dehydrated, optionally washed with water, optionally dried and optionally calcined. The resultant products can be used as follows: the suspension can be used as gloss-white in paper manufacture; the precipitate dried at less than 80 DEG C can be used as a flame-retardant filler for fire-proofing construction materials; the precipitate calcined at less than 500 DEG C can be used as a filler for producing plaster panels; and the precipitate calcined at above 500 DEG C can be used as a hydraulically active additive ...

Modified geopolymer and modified geopolymer composite and process for the production thereof

The invention relates to a modified geopolymer and a modified geopolymer composite comprising additive. The additive is preferably an athermanous additive. The modification is with one or more water-soluble compounds, the water-soluble compound is preferably selected from phosphorus compounds, nitrogen compounds, copper compounds, silver compounds, zinc compounds, tin compounds and magnesium compounds. Also, it relates to compositions which contain the modified geopolymer or modified geopolymer composite. The compositions preferably comprise vinyl aromatic polymer and are in the form of a foam.

Method for producing magnesium silicate-belite-calcium aluminate cement

The present invention relates to a method for producing a binder, comprising the steps of: a) providing a starting material with a molar Ca+Mg/(Si+Al+Fe) ratio of 1.0 to 3.5, a molar Ca/Mg ratio of 0.1 to 100 and a molar Al/Si ratio of 100 to 0.1 - the determination thereof disregarding constituents behaving inertly under hydrothermal autoclave treatment - from raw materials, b) mixing the raw materials, c) hydrothermally treating the step-b) mixture of starting materials in an autoclave at a temperature of 100 to 300 °C for a dwell time of 0.1 to 24 h at a water/solids ratio of 0.1 to 100, d) heating the step-c) intermediate at 350 to 600 °C with a heating rate of 10-6000 °C/min and a dwell time of 0.01-600 min. The present invention relates also to a binder obtainable accordingly, and to its use.

Extended-life calcium aluminophosphate cement compositions

Methods, compositions, and systems for cementing are included. The method comprises providing an extended-life calcium aluminophosphate cement composition comprising calcium aluminate cement, a polyphosphate, water, and a cement set retarder. The method further comprises mixing the extended-life calcium aluminophosphate cement composition with a cement set activator to activate the extended-life calcium aluminophosphate cement composition, introducing the activated extended-life calcium aluminophosphate cement composition into a subterranean formation, and allowing the activated extended-life calcium aluminophosphate cement composition to set in the subterranean formation.

ACCELERATOR FOR MINERAL BINDER COMPOSITIONS

The present invention discloses additives for mineral binder composition, in particular accelerators for mineral binder compositions, in particular cementitious binder compositions. The accelerator comprises 35 to 99.7 w% of at least one mineral filler F with a particle size D50 < 5 µm, preferably < 4 µm, most preferred < 3.5 µm, 0.3 to 65 w% of a sodium aluminate SA, and 0 to 4 w% of at least one other inorganic compound I selected from the group consisting of calcium aluminate cements and/or sulfates of alkali or alkaline earth metals. The present invention also discloses corresponding mineral binder compositions as well as uses and processes, including the acceleration of setting and curing of mineral binder compositions at low temperatures. It discloses furthermore processing steps for the production of accelerators of the present invention.

GEOPOLYMER WITH NANOPARTICLE RETARDANT AND METHOD

A method of controlling the setting time of a geopolymer by coating aluminosilicate particles with nanoparticles to slow the geopolymerization reaction. The coating effectiveness of the nanoparticles may be enhanced by pretreating the aluminosilicate particles with a layer-by-layer assembly of polyelectrolytes. A geopolymer is formed by mixing about 39% to about 66% by weight aluminosilicate source, about 0% to about 40% by weight sand, about 19% to about 33% by weight of alkali activator solution, and about 1% to about 4% nanoparticles.

METHOD OF ENHANCING THE LATENT HYDRAULIC AND/OR POZZOLANIC REACTIVITY OF MATERIALS

The present invention relates to a method of enhancing the latent hydraulic and/or pozzolanic reactivity of materials, especially of waste and by-products, comprising the steps: providing a starting material containing sources for CaO and at least one of SiO2 and AI2O3 mixing the starting material with water at a water/solids ratio from 0.1 to 100 hydrothermal treating of the starting material mixed with water in an autoclave at a temperature of 100 to 300 °C and a residence time from 0.1 to 24 hours to provide an autoclaved product suitable as supplementary cementitious material.

Method for producing a magnesium silicate belite calcium aluminate cement

METHOD AND ADDITIVES FOR INCREASING STARTING RESISTANCE

METHOD OF IMPROVING LATENT HYDRAULIC AND/OR PUZZOLANE ACTIVITY OF MATERIALS

ternesit as additive to the portland cement

METHOD OF PRODUCING THE GEO-POLYMER OR GEO-POLYMERIC COMPOSITE

BELITE - CALCIUM ALUMINATE AS ADDITIVE

ternesit as activator for latentno - hydraulic and puzzolan substances

CALCIUM - SULFOALUMINATE CEMENT WITH TERNESITOM

METHOD FOR PRODUCING A HIGH STRENGTH CONCRETE

COMPOSITE INCLUDING URETHANE AND CEMENT TO REINFORCE SOFT GROUND AND RECOVER SUNKEN STRUCTURE, AND CONSTRUCTION METHOD USING SAME

The present invention relates to a composite for the reinforcement of soft ground and the recovery of a sunken structure and a construction method using the same. Based on 100 parts by weight of cement, the composite includes: 10-40 parts by weight of calcium sulfo-aluminate; 20-50 parts by weight of glycidyl methacrylate (GMA) resin; 10-70 parts by weight of a polyol compound; 5-40 parts by weight of an isocyanate compound; 2-20 parts by weight of a blowing agent; 5-20 part by weight of an amine compound; 1-10 parts by weight of a surfactant; 1-10 parts by weight of a dispersant; 2-20 parts by weight of an accelerating agent; 2-20 parts by weight of a bonding agent; 3-15 parts by weight of nanoceramic particles; and 0.1-10 parts by weight of water reducing admixture. Thus, the present invention is capable of completing reinforcement and recovery work for a short time through simple construction making holes with the composite. COPYRIGHT KIPO 2017 ...

초고강도 시멘트 조성물

... 본 발명은, 1종 시멘트 20 ~ 35 중량부와, 8,000㎠/g 분말도를 갖는 고로슬래그 분말 45 ~ 55 중량부와, 120,000㎠/g 분말도를 갖는 메타카올린 분말 5 ~ 15 중량부와, Ⅱ형 무수석고 5 ~ 20 중량부와, 성능 개선 결합재 3 ~ 40 중량부와, 점도 조절제 0.1 ~ 1.0 중량부를 포함하고, 상기 성능 개선 결합재는, 마그네슘 설포알루미네이트 3∼40 중량부와, 마그네슘 알루미나 시멘트 0.1∼30 중량와, 무수석고, 반수석고 및 이수석고 중 어느 하나 이상인 석고 0.1∼20 중량부와, 소석회 및 생석회 중 어느 하나 이상인 활성 촉진제 1.0 ~ 10.0 중량부와, 탄산리튬, 황산리튬 및 수산화리튬 중 어느 하나 이상인 경화 촉진제 0.01~10 중량부와, 나프탈렌계, 멜라민계 및 폴리카르본산계 중 어느 하나 이상인 감수제 0.1~5.0 중량부와, 하이드록시프로필 메틸 셀룰로오스(HPMC) 및 메틸 셀룰로오스(MC) 중 어느 하나 이상인 증점제 0.1∼3.0 중량부와, 구연산, 주석산 및 글루콘산 중 어느 하나 이상인 지연제 0.1∼5.0 중량부를 포함하고, 상기 점도 조절제는, 아크릴계 수지 30 내지 50 중량부에 대하여, 광경화성 메타 아크릴계 모노머 50 내지 100 중량부, 우레탄 아크릴레이트 고분자 올리고머 10 내지 49 중량부, 광중합 개시제 0.1 내지 10 중량부 및 소포제 0.1 내지 10 중량부를 포함하여 이루어지는 것을 특징으로 한다.

COMPOSITION DE CIMENT PORTLAND A PRISE RAPIDE ET PROCEDE POUR FORMER UNCIMENT PORTLAND MODIFIE

Fireproof compositions and materials

The present invention relates to a composition in the form of a mixture comprising F-type fly ash, a reactive silicon source, a setting accelerator and a light aggregate with a density of less than 900 kg/m3and a mechanical strength of at least 0.08 MPa, and the uses thereof to obtain light and fireproof construction materials.

PRODUCTION OF QUICK SETTING BASE MATERIAL FOR HARDENING ACCELERATOR

PROBLEM TO BE SOLVED: To utilize an aluminum residual ash and improve the easy sinterability and quick setting performances by adding a calcareous raw material and a sodium raw material to the aluminum residual ash and baking the resultant mixture. SOLUTION: An aluminum residual ash having ≤3wt.% SiO2 content, ≤15wt.% MgO content and ≤20wt.% metallic aluminum content is mixed with a calcareous raw material and a sodium raw material to afford a mixture, which is then baked at 1,100-1,350°C to afford a quick setting base material, consisting essentially of Na2O.8CaO.3Al2O3 at 1.4-4.0 molar ratio of CaO/Al2O3 and 0.25-1.0 molar ratio of Na2O/Al2O3. COPYRIGHT: (C)1997,JPO ...

Expansive cement

PROCEDURE FOR THE PRODUCTION OF BUILDING MATERIALS

Procedure for the production of a building material mixture

Method for producing magnesium silicate-belite-calcium aluminate cement

The present invention relates to a method for producing a binder, comprising the steps of: a) providing a starting material with a molar Ca+Mg/(Si+Al+Fe) ratio of 1.0 to 3.5, a molar Ca/Mg ratio of 0.1 to 100 and a molar Al/Si ratio of 100 to 0.1 - the determination thereof disregarding constituents behaving inertly under hydrothermal autoclave treatment - from raw materials, b) mixing the raw materials, c) hydrothermally treating the step-b) mixture of starting materials in an autoclave at a temperature of 100 to 300 °C for a dwell time of 0.1 to 24 h at a water/solids ratio of 0.1 to 100, d) heating the step-c) intermediate at 350 to 600 °C with a heating rate of 10-6000 °C/min and a dwell time of 0.01-600 min. The present invention relates also to a binder obtainable accordingly, and to its use.

Powdered quick-setting agent, quick-setting material, quick-setting material cured product, and spraying method

A powdered quick-setting agent containing calcium aluminates and sodium silicate, and furthermore preferably containing at least one selected from the group consisting of alkali metal sulfates, alkaline earth metal sulfates, and aluminum sulfate.

A METHOD OF RESISTING CORROSION IN METAL REINFORCING ELEMENTS CONTAINED IN CONCRETE AND RELATED COMPOUNDS AND STRUCTURES

In some embodiments, alternate sources of aluminum or calcium are provided in various ways including the desired compounds. The further object of the present invention contemplate in situ creation of the compound in interest in fresh concrete and as a slurry which can be employed in remediation of existing concrete structures. A method of resisting corrosion in concrete containing metal elements is provided. It includes introducing into fresh concrete, containing metal elements, at least one compound capable of sequestering chloride ions. The method may also involve employing a compound which is capable of establishing a corrosion resistant oxide layer on the metal reinforcing elements. The invention also includes certain compounds which may be employed in the method as well as concrete structures containing the compounds. In another embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing a compound of the type which will contribute to corrosion ...

DRY MORTAR, MORTAR SLURRY AND METHOD FOR PRODUCING SEMI-RIGID COATINGS

The present invention relates to a dry mortar and a mortar slurry as well as a method for producing semi-rigid coatings. In one embodiment, the dry mortar or the mortar slurry contains a cement, a very fine component and a plasticizer and is free from silica fume, wherein the mortar slurry can be applied at a temperature of the asphalt support structure of 55 to 80 °C and a compressive strength of at least 100 N/mm2 is achieved after 28 days. In a further embodiment, the dry mortar or the mortar slurry also contains a gelling agent such that the mortar slurry has a reduced efflux tendency.

DRY MORTAR, MORTAR SLURRY AND METHOD FOR PRODUCING SEMI-RIGID COATINGS

The present invention relates to a dry mortar and a mortar slurry, and a method for producing semi-rigid coatings. In one embodiment, the dry mortar and/or mortar slurry comprises a cement, a very fine component, and a superplasticizer and is free of silica fume, wherein the mortar slurry can be applied at an asphalt framework temperature between 55 and 80 °C, and a compressive strength of at least 100 N/mm2 is reached after 28 days. In a further embodiment, the dry mortar and/or mortar slurry additionally contains a gelling agent to reduce the propensity of the mortar slurry to flow out.

METHOD FOR PRODUCING TERNESITE-BELITE-CALCIUM SULFOALUMINATE CLINKER

The invention relates to the production of a ternesite-belite-calcium- sulfoaluminate (ferrit) clinker. The invention also relates to the use of alternative raw materials, e.g. raw materials based on industrial auxiliary products, in particular having a low quality, such as for example pieces of slag and ashen with a low glass content and /or high content of unslaked lime and/or high content of crystalline high temperature phases, and naturally present minerals and igneous glass of a similar chemical composition for the production of clinker.

TERNESITE AS ACTIVATOR FOR LATENTLY HYDRAULIC AND POZZOLANIC MATERIALS

The invention relates to a binding agent based on latent-hydraulic and/or pozzolanic materials, which are activated by adding ternesite (C5S2$).

A METHOD OF RESISTING CORROSION IN METAL REINFORCING ELEMENTS CONTAINED IN CONCRETE AND RELATED COMPOUNDS AND STRUCTURES

Mineral compositions for pressing, grading or casting moulds

ACCELERATOR OF RIGIDIFICATION, PURÉE FOR the SEALING OFF AND/OR CONSOLIDATION GROUNDS AND CONSTRUCTION MATERIALS CONCERNING SUCH an ACCELERATOR, PROCESSES IMPLEMENTING SUCH a PURÉE

MANUFACTORING PROCESS OF FIBRES Of ETTRINGITE

ARTIFICIAL MARBLE, AND METHOD FOR MANUFACTURING ARTIFICIAL MARBLE

Artificial marble of the present invention is a cured product of an artificial marble composition which includes an acrylic resin, an acrylic monomer, and an inorganic filler. The artificial marble comprises fine bubbles having an average diameter of 0.1 to 1 mm in cross section, and contains 0.01 to 0.08 per 1 mm^2 of the fine bubbles on the surface. COPYRIGHT KIPO 2017 ...

저탄소 폴리머 콘크리트 교면 포장 신설 시공방법

... 저탄소 폴리머 콘크리트 교면 포장 신설 시공방법이 개시된다. 본 발명에 따른 저탄소 폴리머 콘크리트 교면 포장 신설 시공방법은, 시공 대상이 되는 교면에 대해 사전 준비 작업을 수행하는 단계, 상기 사전 준비 작업이 완료된 교면 위에 저탄소 폴리머 콘크리트를 포설하는 단계, 및 상기 교면 위에 포설된 저탄소 폴리머 콘크리트를 양생시키는 단계를 포함하고, 상기 저탄소 폴리머 콘크리트는 저탄소 결합재, 유기 폴리머 및 골재를 물과 함께 배합하여 제공되며, 상기 저탄소 결합재는 실리카 재료 및 알칼리 자극제를 포함하고, 상기 실리카 재료는 슬래그 분말, 플라이 애쉬, 천연 포졸란 분말, 실리카흄 및 메타카올린 중 어느 하나 또는 둘 이상을 혼합하여 이루어진다.

MODIFIED GEOPOLYMER AND MODIFIED GEOPOLYMER COMPOSITE AND PROCESS FOR THE PRODUCTION THEREOF

composição de geopolímero de aluminossilicato, uso da composição, método para preparar a referida composição e mistura cimentícia para dar forma

DOWNHOLE FLUIDS AND METHODS OF USE THEREOF

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures. 133-. (canceled)34. A spacer , comprising:a clay;a hydroxylated polymer;a cation;the clay, the hydroxylated polymer, and the cation together in an amount sufficient to render the downhole fluid thermally stable at a temperature of 400° F.; andat least one additional downhole fluid component.35. The spacer of claim 34 , wherein the clay comprises a phyllosilicate clay.36. The spacer of claim 35 , wherein the phyllosilicate clay comprises a smectite clay claim 35 , a sepiolite clay or a palygorskite clay.37. The spacer of claim 34 , further comprising salt water.38. The spacer of claim 34 , further comprising a surfactant claim 34 , a defoamer claim 34 , a salt claim 34 , a viscosifier or any combinations thereof.39. The spacer of claim 38 , wherein the salt comprises sodium chloride or calcium chloride.40. The spacer of claim 38 , wherein the viscosifier comprises nanoparticles of 100 nm or less in size.41. The spacer of claim 34 , wherein the at least one additional downhole fluid component is an aqueous component with a pH of at least 9.42. The spacer of claim 34 , wherein the spacer has a transition temperature of around 150° F. at which viscosity rapidly increases.43. The spacer of claim 34 , wherein the hydroxylated polymer comprises microcellulose or nanocellulose.44. A system for introducing a spacer into a subterranean formation claim 34 , the system comprising: a clay;', 'a hydroxylated polymer;', 'a cation;', 'the clay ...

Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures

A method of resisting corrosion of metal elements in concrete is provided. It includes introducing into concrete containing metal elements, at least one combination compound capable of sequestering chloride ions having the formula 3Me(II)O.(R, R')2O3.Me(II)(anion)2.nH2O, where R and R' are different and are independently selected from the group consisting of Al, Fe and Cr; anion is selected from the group consisting of NO2, NO3 and OH, n is 0 to 24, and Me(II) is a cation and is selected from the group consisting of Ca, Ba, Sr, Mn, Zn and combinations thereof. In one embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing the combination compound, with the overlay being provided in situ or as a preformed member and with possible use of a slurry in combination with an overlay segment.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

STABLE SUSPENSION OF ELASTOMER PARTICLES FOR USE IN A CEMENT SLURRY

Suspensions of elastomer particles for cement compositions and associated methods of cementing. An example method includes providing a suspension of elastomer particles. The suspension of elastomer particles includes elastomer particles, an aqueous fluid, a viscosifier, a surfactant, and a clay-based stabilizer. The suspension may be combined with a cement slurry to form a cement composition. The cement slurry includes a cement and a base fluid. The cement composition may be introduced into a wellbore penetrating a subterranean formation. The cement composition may be allowed to set in the wellbore. 1. A method for cementing , the method comprising: elastomer particles,', 'an aqueous fluid,', 'a viscosifier,', 'a surfactant, and', 'a clay-based stabilizer;, 'providing a suspension of elastomer particles comprisingcombining the suspension with a cement slurry to form a cement composition; wherein the cement slurry comprises a cement and a base fluid;introducing the cement composition into a wellbore penetrating a subterranean formation; andallowing the cement composition to set in the wellbore.2. The method of claim 1 , wherein the elastomer particles are selected from the group consisting of styrene butadiene claim 1 , natural rubber claim 1 , nitrile rubber claim 1 , butyl rubber claim 1 , ethylene propylene diene rubber claim 1 , ethylene propylene rubber claim 1 , chlorinated polyethylene rubber claim 1 , polyurethane rubber claim 1 , polyisoprene rubber claim 1 , polybutadiene rubber claim 1 , polyisobutylene rubber claim 1 , acrylonitrilebutadiene rubber claim 1 , acrylonitrile-styrene-butadiene rubber claim 1 , and any combination thereof.3. The method of claim 1 , wherein the viscosifier is selected from the group consisting of diutan gum claim 1 , welan gum claim 1 , gellan gum claim 1 , cellulose derivatives claim 1 , copolymers of 2-acrylamido-2-methyl propane sulfonate and acrylamide claim 1 , polyvinyl alcohol claim 1 , polyvinylpyrrolidones claim 1 , ...

A process for making cement impervious

Instead of water, a solution of aluminium hydroxide in alkali is used for gauging cement, the product being thus rendered impermeable. The alkali is preferably potassium or mixed potassium and sodium hydroxide, and the proportion of alkali aluminate to cement may be 1 1/2 to 100.

Stable suspension of elastomer particles for use in a cement slurry

Suspensions of elastomer particles for cement compositions and associated methods of cementing. An example method includes providing a suspension of elastomer particles. The suspension of elastomer particles includes elastomer particles, an aqueous fluid, a viscosifier, a surfactant, and a clay-based stabilizer. The suspension may be combined with a cement slurry to form a cement composition. The cement slurry includes a cement and a base fluid. The cement composition may be introduced into a wellbore penetrating a subterranean formation. The cement composition may be allowed to set in the wellbore.

Ternesite used as an additive in portland cement

The invention relates to the production of a ternesite clinker having 20 - 100 wt.-% C ...

Stabilized aqueous suspension for initiating setting and hardening of aluminous cement compositions

The present invention pertains to a long-term stabilized aqueous initiator composition for initiating setting and hardening of aluminous cement compositions, comprising at least one activator component comprising at least one alkali and/or alkaline metal salt, at least one accelerator component comprising at least one water-soluble alkali and/or alkaline metal salt, at least one retarder selected from the group consisting of citric acid, tartaric acid, lactic acid, salicylic, gluconic acid and mixtures thereof, at least one mineral filler selected from the group consisting of limestone fillers, corundum, dolomite, alkaline- resistant glass, crushed stones, gravels, pebbles and mixtures thereof, at least one thickening agent, and water; to a method for preparing the long-term stabilized aqueous initiator composition as well as to the use of said composition in a system for chemical fastening of anchoring means in mineral surfaces.

LOSS CIRCULATION COMPOSITIONS (LCM) HAVING PORTLAND CEMENT CLINKER

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

BELITE CALCIUM ALUMINATE AS AN ADDITIVE

The present invention relates to the use of a belite-calcium aluminate which can be obtained in a method involving the steps of: (a) producing a starting material, which has a molar Ca/(Si+AI+Fe) ratio of 1.0 to 3.5 and a molar Al/Si ratio of 100 to 0.1; (b) mixing the raw materials; (c) hydrothermally treating the starting material mixture produced in step (b) in the autoclave at a temperature of 100 to 300 °C and at a residence time of 0.1 to 24 hrs, wherein the water/solid ratio is 0.1 to 100; moderating the temperature of the intermediate product obtained in step (c) at 350 to 600 °C, wherein the heating rate is 10-6000 °C/min and the residence time is 0.01-600 minutes as accelerators for Portland cement. The present invention further relates to a method for accelerating the stiffening/solidification and/or the hardening of binding agents containing Portland cement by adding the belite-calcium aluminate, binding agents containing Portland cement and to the accelerator.

METHOD FOR PRODUCING TERNESITE

The present invention relates to the production of ternesite clinkers containing 20 to 95 % by weight C5S2$ and less than 15% by weight C4A3$, and to the use of ternesite as an additive to hydraulic and/or latent hydraulic and/or pozzolanic materials.

TERNESITE AS AN ADDITIVE TO PORTLAND CEMENT

The invention relates to the production of a ternesite clinker having 20 - 100 wt.-% C5S2$ and less than 15 wt.-% C4A3$, and to the use of ternesite as an additive in Portland cement or Portland composite cement, and binding agents containing 20 - 95 wt.-% Portland cement (clinker) and 80 - 5 wt.-% ternesite (clinker).

PLUGGING AND ABANDONMENT OF WELLS WITH CEMENT COMPOSITIONS WITH IMPROVED SHELF LIFE

La présente divulgation concerne des procédés et des systèmes (2) pour des applications d'obturation et d'abandon. Un procédé comprend l'utilisation d'une composition de ciment à durée de vie prolongée (32) contenant du ciment à base d'aluminate de calcium, de l'eau et un retardateur de prise de ciment. Le procédé comprend également le mélange de la composition de ciment à durée de vie prolongée (32) avec un activateur de prise de ciment pour activer la composition de ciment, l'introduction de la composition de ciment à durée de vie prolongée (32) activée dans un puits de forage (44) et le fait de laisser la composition de ciment à durée de vie prolongée (32) activée prendre dans le puits de forage (44) pour former un bouchon. Le bouchon a une perméabilité inférieure à 0,1 millidarcy.

Manufactoring process of gas concrete inflated without contraction

연약지반 개량용 고화제 조성물 및 이의 제조방법, 그리고 이에 의한 고화제

... 본 발명은 연약지반 개량용 고화제 조성물 및 이의 제조방법, 그리고 이에 의한 고화제에 관한 것이다. 본 발명은 고로슬래그, 플라이 애시, 석회, 알루민산 칼슘, 몬모릴로나이트, 카올리나이트, 탤크, 퍼라이트, 서멧, 운모, 세피올라이트, 건식 안료가 혼합된 연약지반 개량용 고화제 조성물 및 이의 제조방법, 그리고 이에 의한 고화제에 관한 것이다. 본 발명은 조성 성분의 특성에 의해 지내력, 속경성, 경량화 등을 향상시킬 수 있다.

폐유리 재생골재를 활용한 락볼트 채움 방청성 무수축 모르타르 조성물

... 본 발명은 시멘트, 칼슘계 방청재, 폐유리 재생골재, 고로슬래그, 천연무수석고, 경화재, 증점재, 강도증진재, 보습재, 비메탈계 가스 발생재, PC계 분말유동화재, 칼슘설퍼알루미네이트를 포함하는 것을 특징으로 하는 폐유리 재생골재를 활용한 락볼트 채움 방청성 무수축 모르타르 조성물에 관한 것이다.

강관다단 그라우팅 공법용 속경성 그라우트재, 이의 제조방법 및 이를 이용한 강관다단 그라우팅 공법

본 발명은 속경성 그라우트재, 이의 제조방법 및 이를 이용한 강관다단 그라우팅 공법에 관한 것으로서, 좀 더 구체적으로 설명하면, 연약지반 및 터널의 보수보강 효과가 우수하고, 공사 시간을 단축시킬 수 있는 강관다단 그라우팅 공법용 속경성 그라우트재, 이의 제조방법 및 이를 이용한 강관다단 그라우팅 공법에 관한 것이다. The present invention relates to a quick-hardening grout material, a method for manufacturing the same, and a multi-stage steel pipe grouting method using the same. It relates to a fast-hardening grout material for grouting method, a manufacturing method thereof, and a steel pipe multi-stage grouting method using the same.

세굴방지가 가능하고 되메우기가 없는 산마루 측구 및 그 시공방법

... 본 발명은 세굴방지가 가능하고 되메우기가 없는 산마루 측구에 관한 것으로, 제1 부직포; 상기 제1 부직포에 도포되는 제1 접착제; 상기 제1 접착제 위에 적층되는 방수필름; 상기 방수필름에 도포되는 제2 접착제; 상기 제2 접착제에 적층되는 제2 부직포; 상기 제2 부직포에 도포되는 제3 접착제; 상기 제3 접착제 위에 적층되는 다공성 구조층; 및 상기 다공성 구조층에 살포되는 속경형 폴리머 시멘트 모르타르; 를 포함하는 것을 기술적 특징으로 하며, 바닥 양생하고, 거푸집 설치하는 과정이 필요 없으므로, 시공시간 및 양생시간까지 포함하여 4일 이내에 완료할 수 있는 장점이 있으며, 되메우는 공정이 필요 없어 세굴현상이 발생하는 것을 방지할 수 있는 장점이 있고, 평지에서 산마루 측구 시공 현장까지 고압호스 및 에어노즐을 이용하여 속경형 폴리머 시멘트 모르타르를 공급하여 다공성 구조층에 살포할 수 있으므로, 산마루 측구 시공 현장까지 시멘트 모르타르 타설 장비가 올라가지 않아도 되는 장점이 있고, 3차원의 벌집 모양의 다공성 구조층을 사용함으로써 속경형 폴리머 시멘트 모르타르가 양생된 후에 강도 및 내구성을 향상시킬 수 있는 것에 특징이 있다.

CEMENT ADMIXTURE AND CEMENT COMPOSITION

Provided are a cement admixture and cement composition, which impart an excellent anti-corrosive effect to iron reinforcing bars inside a cement concrete cured product, have a blocking effect against chloride ion penetration from the outside, are capable of suppressing pore formation as a result of low Ca ion leaching, and have self-repairing capability. The cement admixture comprises a calcium ferroaluminate compound having a CaO/Al2O3 molar ratio of 0.15 to 0.7 and an Fe2O3 content of 0.5 to 20 mass% and a substance having latent hydraulic properties and/or a pozzolanic substance. The fineness of the calcium ferroaluminate compound is preferably 2,000 to 7,000 cm2/g by the Blaine specific surface area value. The substance having latent hydraulic properties and/or the pozzolanic substance is preferably one or more selected from the group comprising blast furnace granulated slag fine powder, fly ash, silica fume, metakaolin, pulp sludge incineration ash, sewage sludge incineration ash, ...

STABILIZED AQUEOUS SUSPENSION FOR INITIATING SETTING AND HARDENING OF ALUMINOUS CEMENT COMPOSITIONS

A long-term stabilized aqueous initiator composition, which includes components for curing of a two-component mortar system composition. The long-term stabilized aqueous initiator composition includes an activator component that has an alkali and/or alkaline earth metal salt, an accelerator component that has a water-soluble alkali and/or alkaline earth metal salt, a retarder selected from citric acid, tartaric acid, lactic acid, salicylic, gluconic acid, and a mixture of these components, a mineral filler selected from a limestone filler, corundum, dolomite, alkaline-resistant glass, crushed stone, gravel, pebble, and a mixture of these components, a thickening agent, and water.

Rapid-hardening admixture and method for producing same

The present invention provides a rapid-hardening admixture for accelerating hardening of a cement composition and a method for producing the same. The rapid-hardening admixture includes calcium aluminate, inorganic sulfate, and a setting modifier, in which the calcium aluminate has an average particle diameter in a range of 8 μm to 100 μm, and the setting modifier has an average particle diameter of 5 μm or less.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement;a carrier fluid; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the cement comprises API Class G cement.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium silicate.7. The LCM composition of claim 1 , wherein the inorganic ...

Downhole fluids and methods of use thereof

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.

Dry mortar, mortar slurry and method for producing semi-rigid coatings

The present invention relates to a dry mortar and a mortar slurry as well as a method for producing semi-rigid coatings. In one embodiment, the dry mortar or the mortar slurry contains a cement, a very fine component and a plasticizer and is free from silica fume, wherein the mortar slurry can be applied at a temperature of the asphalt support structure of 55 to 80° C. and a compressive strength of at least 100 N/mm 2 is achieved after 28 days. In a further embodiment, the dry mortar or the mortar slurry also contains a gelling agent such that the mortar slurry has a reduced efflux tendency.

SYSTEMS AND METHODS FOR MOISTURE CONDITIONING AGGREGATE WITH AN ALKALINE COMPOUND

The described systems, methods, and compositions relate to systems, methods, and compositions for forming one or more cementitious materials that cure into one or more mortars and/or concretes. More particularly, some embodiments relate to systems, methods, and compositions for forming cured mortars and/or concretes that tend to have an increased strength over time due to the use of one or more reactive aggregates, activator materials, and/or alkaline compounds for conditioning the aggregate. In some cases, a cementitious mixture that is configured to form a mortar that can receive one or more filler aggregates (e.g., reactive filler aggregates) to make a concrete. Additionally, in some cases, the reactive aggregate is conditioned with an aqueous solution comprising one or more alkaline compounds having a concentration in the aqueous solution of between about 0.001 mol/L and about 10 mol/L, or within any subrange thereof (e.g., between about 0.25 molar and about 5 molar). 1. A method for producing a cementitious mixture , comprising:preconditioning a reactive aggregate by adding a first hydrating solution to the reactive aggregate, wherein the first hydrating solution comprises an alkaline solution;mixing the reactive aggregate and the first hydrating solution;{'b': '40', 'combining the reactive aggregate and the first hydrating solution with an activating material comprising at least percent calcium oxide; and'}incorporating a second hydrating solution comprising water with the reactive aggregate and the activating material to form a cementitious material.2. The method of claim 1 , wherein a concentration of an alkaline compound within the alkaline solution comprises between 0.25 mol/L and 5.0 mol/L.3. The method of claim 1 , wherein the alkaline solution comprises at least one of a potassium hydroxide claim 1 , a sodium hydroxide claim 1 , a sodium aluminate claim 1 , and a potassium aluminate.4. The method of claim 1 , wherein the first hydrating solution further ...

Systems and methods for self-sustaining saltwater reactive cementitious systems

The described systems, methods, and compositions relate to systems, methods, and compositions for forming one or more cementitious mixtures that cure into one or more mortars and/or concretes. More particularly, some embodiments relate to systems, methods, and compositions for producing cementitious materials (or cured mortar and/or concrete compositions) that tend to increase in strength over time due to the use of saltwater (e.g., instead of freshwater) and/or due to the use of one or more reactive aggregates that interact with an activator material that is primarily comprised of lime. In some cases, the described cementitious material can (before being cured to form mortar or concrete) include one or more reactive aggregates; hydrating solutions comprising water with a salt content greater than 0.5 ppt; and/or activator materials comprising at least 40% calcium oxide by mass (e.g., when the activator is dry).

Systems and methods for self-sustaining reactive cementitious systems

The described systems, methods, and compositions relate to systems, methods, and compositions for forming one or more cementitious materials that cure into one or more mortars or concretes. More particularly, some embodiments relate to systems, methods, and compositions for producing cured cementitious materials that tend to increase in strength over time due to the use of one or more reactive aggregates that interact with one or more activating materials (lime components). In some cases, a mortar or a concrete includes a reactive aggregate with an oven-dried bulk density between about 0.25 and 3.0 gm/cc and a porous structure, wherein at least 5% of a total mass of the reactive aggregate is comprised of particles less than (or equal to) 1 mm. In some such embodiments, the cementitious mixture further comprises a hydrating solution including water and an activating material, wherein the activator comprises at least 40% calcium oxide, by mass.

CRACK SELF-HEALING AGENT FOR CEMENT-BASED MATERIALS CAPABLE OF BINDING CORROSIVE IONS IN SEAWATER, AND PREPARATION METHOD THEREOF

Disclosed are a crack self-healing agent for cement-based materials capable of binding corrosive ions in seawater, and a preparation method thereof. A core material of the agent is an active inorganic composite component capable of chemically binding Cl, Mg, and S, a wall layer is polymethyl methacrylate, and an interface improvement layer is a cement layer. A preparation method includes: (1) thoroughly mixing active components capable of binding corrosive ions, and filling a resulting mixture into a direct compression mold; (2) applying a pressure to the direct compression mold and holding the pressure on using a pressing machine, and demolding to obtain a core material body; (3) placing the core material body obtained in a solution of PMMA in acetone for coating, and taking out the core material body and drying; (4) coating a layer of cement before the acetone is completely volatilized to obtain the crack self-healing agent.

Belite-calcium aluminate as an additive

The present invention relates to the use of a belite calcium aluminate obtainable in a method comprising the following steps: a) providing a starting material that has a molar Ca/(Si+Al+Fe) ratio from 1.0 to 3.5 and a molar Al/Si ratio from 100 to 0.1, b) mixing the raw materials, c) hydrothermal treating of the starting material mixture produced in step b) in an autoclave at a temperature from 100 to 300° C. and a residence time from 0.1 to 24 h, wherein the water/solids ratio is 0.1 to 100, d) tempering the intermediate product obtained in step c) at 350 to 600° C., wherein the heating rate is 10-6000° C./min and the residence time is 0.01-600 min as an accelerator for Portland cement.

PAVER ADHESIVE AND METHOD OF LAYING PAVERS

One inch paver tiles may now be set over a concrete pad for use by vehicular traffic. The method and dry concrete mix may be used to overlay concrete driveways. The paver tiles may be laid over a dry concrete mix comprising a latex polymer, Portland cement, sand and a hydration control agent. After laying the paver tiles in a field over the concrete mix in the dry state, a border of paver tiles or other material may be laid in a wet concrete mix prior to hydrating the field paver tiles. The dry concrete mix cures after hydration to form a strong layer adhering the paver tiles to the concrete pad for use by vehicular traffic. 1. A dry concrete mix for dry setting paver tiles , the dry concrete mix comprising:portland cement;silica sand;alumina silicate; anda dry, redispersible latex polymer powder.2. The dry concrete mix of claim 1 , wherein:the portland cement is in a concentration range from approximately 30 wt. % to approximately 60 wt. %;the alumina silicate is in a concentration range from approximately 1 wt. % to approximately 6 wt. %; andthe dry, redispersible latex polymer powder is in a concentration range from approximately 1 wt. % to approximately 30 wt. %.3. The dry concrete mix of claim 2 , wherein the dry claim 2 , redispersible latex polymer powder comprises poly(ethylene-vinyl acetate).4. The dry concrete mix of claim 2 , wherein the silica sand is in a concentration range from approximately 25 wt. % to approximately 60 wt. %.5. The dry concrete mix of claim 4 , wherein the dry claim 4 , redispersible latex polymer powder comprises poly(ethylene-vinyl acetate).6. The dry concrete mix of claim 1 , wherein:the portland cement is in a concentration range from approximately 40 wt. % to approximately 60 wt. %;the alumina silicate is in a concentration range from approximately 0.5 wt. % to approximately 3 wt. %; andthe dry, redispersible latex polymer powder is in a concentration range from approximately 0.5 wt. % to approximately 3 wt. %.7. The dry ...

CORROSION INHIBITING CEMENTITIOUS COMPOSITIONS

Provided herein is a cementitious composition comprising a photoactivator, wherein the photoactivator is capable of converting NOx to NO— or NO— when exposed to ultraviolet (U.V.) or visible light. 1. A cementitious composition comprising 15-25 wt. % of AFm and 0.001-5 wt. % of a photoactivator , wherein the photoactivator comprises doped TiOand the photoactivator is capable of converting NOto NOor NOwhen exposed to U.V. or visible light.2. The cementitious composition of claim 1 , wherein the photoactivator is capable of converting NOto NOor NOwhen exposed to visible light.3. The cementitious composition of claim 1 , wherein 50% by weight or more of the photoactivator is present topically in the composition.4. The cementitious composition of claim 3 , wherein the photoactivator is coated.5. The cementitious composition of claim 3 , wherein the photoactivator is layered.6. The cementitious composition of claim 1 , comprising 18-22 wt. % of AFm.7. The cementitious composition of claim 6 , comprising 0.01-4 wt. % of the photoactivator.8. A process of synthesis comprising contacting a hydraulic cement with a sufficient amount of a composition comprising alumina and a sufficient amount of a photoactivator comprising doped TiOunder conditions suitable to provide a cementitious composition comprising 15-25 wt. % of AFm and 0.001-5 wt. % of the photoactivator.9. The process of claim 8 , wherein the hydraulic cement is Portland cement.10. The process of claim 8 , wherein the cementitious composition comprises 15-25 wt. % of AFm.11. The process of claim 10 , wherein the cementitious composition comprises 0.01-4 wt. % of the photoactivator. This application claims benefit under 35 U.S.C. §119(e) of U.S. provisional application No. 61/643,858, filed May 7, 2012, the content of which is incorporated herein in its entirety by reference.This technology relates to cementitious compositions that can inhibit and impede corrosion.Efficient infrastructure is a critical driver for ...

EXPANSIVE CEMENT

An expansive additive composition for use in Portland cements and a method of using such an additive composition is provided. The additive composition can include a calcium aluminate cement additive and a lithium compound. The additive composition is capable of producing expansion in set cements when the temperature is at or below room temperature and minimizes the amount of calcium aluminate cement additive needed. 1. A composition comprising the following components:a calcium aluminate cement in an amount from about 5% to about 50% by weight of the composition;a lithium compound in an amount from about 0.01% to about 5.00% by weight of the composition;calcium hydroxide present in an amount from about 1% to about 20% by weight of the composition;sodium bicarbonate present in an amount from about 0.1% to about 5.0% by weight of the composition; andgypsum present in an amount from about 50% to about 80% by weight of the composition; andwherein the components of the composition are configured such that when the composition is added to a Portland cement and water to produce a cement composition there results at least a 10% expansion within 1 day after the onset of curing of the cement composition.2. The composition of claim 1 , wherein the components of the composition are configured such that the expansion occurs at temperatures below 100° F.3. The composition of claim 1 , wherein the components of the composition are configured such that the expansion occurs at temperatures below about 73° F.4. The composition of claim 1 , further comprising calcium sulfate present in an amount from about 50% to about 80% by weight of the composition.5. The composition of claim 1 , wherein said calcium aluminate cement is in an amount from about 10% to about 40% by weight of the composition and wherein said lithium compound is in an amount from about 0.05% to about 1.00% by weight of the composition.6. The composition of claim 5 , wherein said calcium aluminate cement is in an amount ...

FIREPROOF COMPOSITIONS AND MATERIALS

The present invention relates to a composition in the form of a mixture comprising F-type fly ash, a reactive silicon source, a setting accelerator and a light aggregate with a density of less than 900 kg/mand a mechanical strength of at least 0.08 MPa, and the uses thereof to obtain light and fireproof construction materials. 137.-. (canceled)38. A composition in a dry mixture form comprising:between 30 and 80% by weight of type F fly ash,between 1 and 9% by weight of a reactive silicon source,between 1 and 15% by weight of a setting accelerant,between 2 and 30% by weight of lightweight aggregates,wherein the % by weight is with respect to the total weight of the composition in a dry mixture form, andwherein said composition in a dry mixture form has an apparent density between 200 and 600 kg/m3, preferably between 150 and 550 kg/m3, more preferably between 200 and 500 kg/m3.39. The composition according to claim 38 , wherein said composition has an apparent density between 400 and 900 kg/m3 when mixed with water in a liquid/solid weight ratio between 0.7 and 0.9 claim 38 , preferably between 450 and 850 kg/m3 claim 38 , more preferably between 500 and 800 kg/m3 claim 38 , measured according to UNE EN 1015-6 before 5 minutes after mixing with water.40. The composition according to claim 38 , wherein said composition has a density between 200 and 600 kg/m3 claim 38 , preferably between 250 and 550 kg/m3 claim 38 , more preferably between 300 and 500 kg/m3 claim 38 , when mixed with water in a liquid/solid weight ratio between 0.7 and 0.9 claim 38 , test specimens of 4×4×16 cm are prepared and allowed to dry at ambient temperature for 28 days claim 38 , according to UNE-EN 1015-10.41. The composition according to claim 38 , wherein said composition comprises between 40% and 60% by weight claim 38 , preferably comprising more than 40% by weight and less than 45% claim 38 , of type F fly ash with respect to the total weight of the composition in a dry mixture form.42. ...

EXPANSIVE CEMENT

An expansive additive composition for use in Portland cements and a method of using such an additive composition is provided. The additive composition can include a calcium aluminate cement additive and a lithium compound. The additive composition is capable of producing expansion in set cements when the temperature is at or below room temperature and minimizes the amount of calcium aluminate cement additive needed. 1. An expansion additive composition for use in Portland cements comprising:a calcium aluminate cement in an amount from about 5% to about 50% by weight of the composition;a lithium compound in an amount from about 0.01% to about 5.00% by weight of the composition;calcium hydroxide present in an amount from about 1% to about 20% by weight of the composition; andsodium bicarbonate present in an amount from about 0.1% to about 5.0% by weight of the composition.2. The composition of claim 1 , further comprising calcium sulfate present in an amount from about 50% to about 80% by weight of the composition.3. The composition of claim 1 , wherein said calcium aluminate cement is in an amount from about 10% to about 40% by weight of the composition and wherein said lithium compound is in an amount from about 0.05% to about 1.00% by weight of the composition.4. The composition of claim 3 , wherein said calcium aluminate cement is in an amount from 15% to 35% by weight of the composition and wherein said lithium compound is in an amount from 0.10% to 0.50% by weight of the composition.5. The composition of claim 1 , wherein said lithium compound is a lithium salt selected from the group consisting of lithium carbonate claim 1 , lithium halides claim 1 , lithium sulfate claim 1 , hydrates of lithium sulfate claim 1 , lithium nitrate claim 1 , lithium hydroxide claim 1 , and mixtures thereof.6. The composition of claim 1 , further comprising calcium sulfate claim 1 , and wherein:said calcium aluminate cement is in an amount from 15% to 35% by weight of the ...

GEOPOLYMER WITH NANOPARTICLE RETARDANT AND METHOD

A method of controlling the setting time of a geopolymer by coating aluminosilicate particles with nanoparticles to slow the geopolymerization reaction. The coating effectiveness of the nanoparticles may be enhanced by pretreating the aluminosilicate particles with a layer-by-layer assembly of polyelectrolytes. A geopolymer is formed by mixing about 39% to about 66% by weight aluminosilicate source, about 0% to about 40% by weight sand, about 19% to about 33% by weight of alkali activator solution, and about 1% to about 4% nanoparticles. 1. A composition of matter formed by the mixing of components comprising:about 39% to about 66% by weight aluminosilicate source;about 0% to about 40% by weight sand;about 19% to about 33% by weight alkali activator solution; andabout 1% to about 4% by weight nanoparticle retardant.2. The composition of matter of claim 1 , wherein the aluminosilicate source comprises fly ash claim 1 , metakaolin claim 1 , or rice husk.3. The composition of matter of claim 1 , wherein the alkali activator solution comprises sodium silicate and a sodium hydroxide solution.4. The composition of matter of claim 3 , wherein a concentration of the sodium hydroxide solution is in the range of about 10M to about 14M.5. The composition of matter of claim 3 , wherein the alkali activator solution comprises a silicate to hydroxide ratio of about 1.5.6. The composition of matter of claim 1 , wherein the nanoparticle retardant comprises halloysite nanotubes or kaolin nanoclay particles.7. The composition of matter of claim 1 , wherein the composition is formed by mixing of components comprising:about 64% to about 66% by weight aluminosilicate source;about 32% to about 33% by weight alkali activator solution; andabout 1% to about 4% by weight nanoparticle retardant.8. The composition of matter of claim 1 , wherein the composition is formed by mixing of components comprising:about 39% to about 40% by weight aluminosilicate source;about 39% to about 40% by weight ...

EXPANSIVE CEMENT

An expansive cement composition including a Portland cement having a calcium aluminate cement additive and a lithium compound additive is provided. The lithium compound additive is capable of producing expansion in set cements when the temperature is at or below room temperature and minimizes the amount of calcium aluminate cement additive needed. 1. An expansive cement composition comprising:a Portland cement,a calcium aluminate cement in an amount from about 0.5% to about 8.0% by weight of said Portland cement;a lithium compound in an amount from about 0.001% to about 0.50% by weight of said Portland cement; andcalcium sulfate present in an amount from about 1% to about 15% by weight of said Portland cement.2. The composition of claim 1 , wherein said composition claim 1 , during and after setting claim 1 , results in at least a 10% increase in volume when setting occurs at a temperature of below 100° F.3. The composition of claim 2 , wherein the lithium compound is a lithium salt selected from the group consisting of lithium carbonate claim 2 , lithium halides claim 2 , lithium sulfate claim 2 , hydrates of lithium sulfate claim 2 , lithium nitrate claim 2 , lithium hydroxide claim 2 , and mixtures thereof.4. The composition of claim 3 , further comprising calcium hydroxide present in an amount from about 0.1% to about 3.0% by weight of said Portland cement claim 3 , and sodium bicarbonate present in an amount from about 0.01% to about 1.00% by weight of said Portland cement.5. The composition of claim 4 , wherein said calcium aluminate cement is in an amount from about 1.0% to about 5.0% by weight of said Portland cement and said lithium compound is in an amount from about 0.005% to about 0.150% by weight of said Portland cement.6. The composition of claim 5 , wherein said calcium aluminate cement is in an amount from 1.5% to 3.5% by weight of said Portland cement and said lithium compound is in an amount from 0.010% to 0.100% by weight of said Portland cement.7 ...

Method and additive for increasing early strength

The present invention relates to a method for accelerating the hardening of hydraulic or latent hydraulic binders, wherein ternesite and an aluminum component are added to the binder, and relates to an additive that increasing early strength for hydraulic or latent hydraulic binders that contain ternesite and a non-hydraulically reactive aluminum component, and relates to the use of an additive comprising ternesite and an aluminum component for the purpose of accelerating the hardening of hydraulic or latent hydraulic binders.

ARTICLE MADE OF CONGLOMERATE MATERIAL, COMPOSITE ASSEMBLY COMPRISING SUCH ARTICLE AND METHOD FOR MANUFACTURING THE ARTICLE MADE OF CONGLOMERATE MATERIAL

Article made of conglomerate material comprising an aggregate comprising granules of expanded glass or expanded ceramic/clay and defining between them intergranular cavities, and a binder. The binder is present in the minimum quantity necessary for coating the expanded glass or expanded ceramic/clay granules, and the intergranular cavities contain only air and are free from filler material. Moreover, the binder is present in a volumetric quantity comprised between 6% and 12% of the total volume of the article. 2. Article according to claim 1 , characterized in that said binder is present in a volumetric quantity comprised between 8% and 10% of the total volume of the article.3. Article according to any one of the preceding claims claim 1 , characterized in that said binder is an inorganic material.4. Article according to claim 3 , characterized in that said binder is an aqueous dispersion of sodium silicate or an aqueous dispersion of potassium silicate or an aqueous dispersion of colloidal silica claim 3 , or mixtures thereof.5. Article according to claim 3 , characterized in that said binder comprises at least one plasticizing agent in powder form.6. Article according to claim 5 , characterized in that said plasticizing agent in powder form is added to the binder in a quantity equal to about 30-60% of its weight.7. Article according to claim 5 , characterized in that said plasticizing agent is chosen from the group comprising metakaolin claim 5 , kaolin and clays claim 5 , and mixtures thereof.8. Article according to claim 5 , characterized in that said plasticizing agent consists of clinker powder or zinc or zinc oxide powder.9. Article according to or claim 5 , characterized in that said binder comprises an organic additive claim 5 , said organic additive being intended to harden in an aqueous and alkaline environment.10. Article according to claim 9 , characterized in that said organic additive is chosen from the group comprising an acrylic latex claim 9 , a ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement, wherein the cement comprises API Class G cement;a carrier fluid; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium silicate.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises an ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement;a carrier fluid;a plurality of polymer fibers; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the cement comprises API Class G cement.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium silicate.7. The LCM composition of claim 1 ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement;a carrier fluid;particulate glass having an aspect ratio greater than or less than 1; andan inorganic consolidation activator selected to consolidate the clinker in the composition to form a plug when introduced into a lost circulation zone.2. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.3. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.4. The LCM composition of claim 1 , wherein the cement comprises API Class G cement.5. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises a silicate salt.6. The LCM composition of claim 1 , wherein the inorganic consolidation activator comprises at least one of sodium silicate claim 1 , calcium aluminate claim 1 , calcium chloride claim 1 , sodium aluminate claim 1 , and potassium ...

Novel Asphalt-Based Dust Control Formulations

This disclosure describes formulations and methods for dust control, for example, coal topping, a term which refers to the application of liquid products to the top of coal loads, such as those in open topped coal hopper railcars as commonly used today to transport coal. Disclosed herein are asphalt-based emulsion formulations that accomplish dust control during industrial operations in which dust handling is required.

PLUGGING AND ABANDONING A WELL USING EXTENDED-LIFE CEMENT COMPOSITIONS

Methods and systems for plug-and-abandon applications are included. A method comprises providing an extended-life cement composition comprising calcium aluminate cement, water, and a cement set retarder. The method further comprises mixing the extended-life cement composition with a cement set activator to activate the extended-life cement composition, introducing the activated extended-life cement composition into a wellbore, and allowing the activated extended-life cement composition to set in the wellbore to form a plug in the wellbore. The plug has a permeability of less than 0.1 millidarcy. 1. A method of cementing comprising:providing an extended-life cement composition comprising calcium aluminate cement, water, and a cement set retarder;mixing the extended-life cement composition with a cement set activator to activate the extended-life cement composition;introducing the activated extended-life cement composition into a wellbore; andallowing the activated extended-life cement composition to set in the wellbore to form a plug in the wellbore that has a permeability of less than 0.1 millidarcy.2. The method of claim 1 , wherein the cement set retarder is selected from the group consisting of hydroxycarboxylic acids or their respective salts claim 1 , boric acid or its respective salt claim 1 , and any combination thereof.3. The method of claim 1 , wherein the cement set retarder is present in an amount of about 0.01% to about 10% by weight of the extended-life cement composition.4. The method of claim 1 , wherein the composition further comprises a polyphosphate.5. The method of claim 4 , wherein the polyphosphate is sodium hexametaphosphate.6. The method of claim 4 , wherein the polyphosphate is present in an amount of about 1% to about 30% by weight of the extended-life cement composition.7. The method of claim 1 , wherein the cement set activator is selected from the group consisting of Groups IA and IIA hydroxides claim 1 , alkaline aluminates claim 1 , ...

RAPID-HARDENING ADMIXTURE AND METHOD FOR PRODUCING SAME

The present invention provides a rapid-hardening admixture for accelerating hardening of a cement composition and a method for producing the same. The rapid-hardening admixture includes calcium aluminate, inorganic sulfate, and a setting modifier, in which the calcium aluminate has an average particle diameter in a range of 8 μm to 100 μm, and the setting modifier has an average particle diameter of 5 μm or less. 1: A rapid-hardening admixture , comprising:calcium aluminate;inorganic sulfate; anda setting modifier,wherein the calcium aluminate has an average particle diameter in a range of 8 μm to 100 μm, andthe setting modifier has an average particle diameter of 5 μm or less.2: The rapid-hardening admixture according to claim 1 ,{'sub': 2', '3', '2', '3', '2', '2', '3, 'wherein the calcium aluminate has one or more compositions selected from the group consisting of 12CaO.7AlO, 11CaO.7AlO.CaF, and CaO.AlO, and'}the calcium aluminate has a vitrification rate of 80% or more.3: The rapid-hardening admixture according to claim 1 ,{'sup': '2', 'wherein the inorganic sulfate is anhydrous gypsum having a Blaine specific surface area of 8,000 cm/g or more.'}4: The rapid-hardening admixture according to claim 1 ,wherein the setting modifier comprises at least one selected from the group consisting of an inorganic carbonate, oxycarboxylic acid, sodium aluminate, and sodium sulfate.5: The rapid-hardening admixture according to claim 1 ,wherein, with respect to 100 parts by mass of the calcium aluminate, the inorganic sulfate is contained in a range of 50 parts by mass to 200 parts by mass, andthe setting modifier is contained in a range of 0.1 parts by mass to 10 parts by mass.6: A method for producing a rapid-hardening admixture claim 1 , the method comprising:mixing and crushing a clinker comprising calcium aluminate and a setting modifier to obtain a mixed and crushed product; andmixing the mixed and crushed product with inorganic sulfate.7: The method according to claim 6 ...

NEW CONSTRUCTION MATERIAL PREPARED FROM A NEW POZZOLANIC MATERIAL

A new construction material prepared from a new pozzolanic material. 1. A construction material in the form of a powder containing at least 1.5% of CaO and in which 1% to 80% of the particles having a diameter smaller than or equal to 150 μm contain:{'sub': 2', '3, 'at least 25% of AlO;'}less than 60% of CaO; and{'sub': 2', '2', '2', '3, 'at least 5% of SiO, the SiO/AlOweight ratio being less than 1.2.'}2. The construction material according to wherein it contains at least 3% of CaO.3. The construction material according to claim 1 , wherein the proportion of the considered particles is from 1% to 60%.4. The construction material according to claim 1 , wherein the diameter of the considered particles is smaller than or equal to 100 μm.5. The construction material according to claim 1 , wherein the considered particles contain at least 30% of AlO.6. The construction material according to claim 1 , wherein the considered particles contain at most 50% of CaO.7. The construction material according to claim 6 , wherein the considered particles contain from 1% to 50% of CaO.8. The construction material according to claim 1 , wherein the considered particles contain SiO claim 1 , the SiO/AlOweight ratio being less than 1.9. The construction material according to claim 1 , wherein the considered particles contain at least 10% of SiO.10. The construction material according to claim 1 , wherein the considered particles further contain up to 20% of FeO.11. The construction material according to claim 1 , wherein the considered particles further contain up to 5% of TiO.12. A pozzolanic material or geopolymer precursor for the preparation of a construction material according to claim 1 , comprising:{'sub': 2', '3, 'from 10% to 95% of AlO;'}{'sub': '2', 'from 5% to 50% of SiO;'}from 0% to 35% of CaO;{'sub': 2', '3, 'from 0% to 25% of FeO; and'}{'sub': '2', 'from 0% to 8% of TiO.'}13. The pozzolanic material or geopolymer precursor according to claim 12 , wherein the pozzolanic ...

Ternesite used as an activator for latent-hydraulic and pozzolanic materials

The present invention relates to binders based on latently hydraulic and/or pozzolanic materials that are activated by an addition of ternesite (C 5 S 2 $).

Extended-life calcium aluminophosphate cement compositions

Methods, compositions, and systems for cementing are included. The method comprises providing an extended-life calcium aluminophosphate cement composition comprising calcium aluminate cement, a polyphosphate, water, and a cement set retarder. The method further comprises mixing the extended-life calcium aluminophosphate cement composition with a cement set activator to activate the extended-life calcium aluminophosphate cement composition, introducing the activated extended-life calcium aluminophosphate cement composition into a subterranean formation, and allowing the activated extended-life calcium aluminophosphate cement composition to set in the subterranean formation.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker;a carrier fluid; andparticulate glass having an aspect ratio greater than 1 or less than 1.2. The LCM composition of claim 1 , wherein the particulate glass comprises a plurality of glass fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.3. The LCM composition of claim 1 , where the particulate glass comprises an amount in the range of 0.25 weight of the total weight (w/w %) to 2.0 w/w %.4. The LCM composition of claim 1 , wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.5. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.6. The LCM composition of claim 1 , comprising cement.7. The LCM composition of claim 6 , wherein the cement comprises API Class G cement.8. The LCM composition of claim 6 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10. This application is a divisional of and claims priority from U.S. Non-provisional application Ser. No. 15/962,720 filed Apr. 25, ...

NOVEL ASPHALT-BASED DUST CONTROL FORMULATIONS

This disclosure describes formulations and methods for dust control, for example, coal topping, a term which refers to the application of liquid products to the top of coal loads, such as those in open topped coal hopper railcars as commonly used today to transport coal. Disclosed herein are asphalt-based emulsion formulations that accomplish dust control during industrial operations in which dust handling is required. 1. A method for controlling dust on a surface of a bulk material , comprising:(I) preparing a dust control formulation (DCF) comprising a dust reduction additive (DRA) emulsion comprising asphalt; and(II) applying said dust control formulation to said surface of said bulk material in an amount effective for dust control.2. The method as recited in claim 1 , wherein said dust control formulation is applied by sprinkling claim 1 , and/or a spray nozzle.3. The method as recited in claim 1 , wherein said dust control formulation further comprises a first water.4. The method as recited in claim 1 , wherein said DRA emulsion comprising asphalt further comprises:(A) at least one defoamer; and(B) at least one emulsifier.5. The method as recited in ; wherein said asphalt in said DRA is from about 30% to about 70% by weight of the DRA.6. The method as recited in ; wherein said asphalt in said DRA is from about 30% to about 70% by weight of the DRA; wherein said at least one defoamer in said DRA is from about 0.00005% to about 0.00030% by weight of the DRA; and wherein said at least one emulsifier in said DRA is from about 30% to about 70% by weight of the DRA.7. The method as recited in claim 4 , wherein said at least emulsifier is a low-fatty acid emulsifier; comprising water; a fatty acid solution; a base; and optionally comprising a dispersant; optionally comprising a stabi-lizer; optionally comprising a defoamer; and optionally comprising a suspension agent.8. The method as recited in claim 4 , wherein said suspension agent is a clay slurry.9. The method as ...

Lithium Infused Processed Fly Ash for the Production of High Strength Cementitious Products

A process is provided for treating raw fly ash used in cementitious material so as to increase the strength of the cementitious material while at the same time providing a near linear strength increase for the material as it cures by processing the raw fly ash, as by milling, and by mixing the processed fly ash with a catalyst such as lithium, with the lithium concentration in the fly ash being between 0.05% and 0.25% by weight. The process applies to Class C fly ash and Class F fly ash when mixed with Class C fly ash. All of the above processes include the use of polycarboxylates.

Low Dust Additives For Joint Compounds And Joint Compounds Thereof

The present invention relates generally to wall repair compounds such as joint compounds, spackling compounds, and the like used to repair imperfections in walls or fill joints between adjacent wallboard panels. Particularly, the present invention relates to such a wall repair compound comprising a dust reduction additive that reduces the quantity of airborne dust generated when the hardened compound is sanded and also exhibits improved adhesive properties. The dust reduction additive also imparts adhesion to the wall repair compounds to which it is added, for example to a joint compound. The dust reduction additive comprises micro-crystalline wax or micro-crystalline wax emulsion. 1. A method of using joint compound composition that has low-dust property and improved adhesive property ,said method comprising:(I) applying said composition to a joint between adjacent wallboard panels;(II) allowing said composition to dry; and(III) sanding said dried composition.wherein said joint compound composition comprises:(a) a dust reduction additive emulsion comprising colloidally-protected micro-crystalline-wax-based (CMWB) microstructures, and(b) a first water.2. The method as recited in claim 1 , wherein said dust reduction additive emulsion comprises said CMWB microstructure comprising: wherein said wax core comprises a micro-crystalline wax component and a non-micro-crystalline wax component,', {'sub': n', '2n+2, 'wherein said micro-crystalline wax component comprises at least one linear alkane wax defined by the general formula CH, where n ranges from 13-80,'}, 'wherein said non-micro-crystalline wax component comprises at least one wax selected from the group consisting of animal-based wax, plant-based wax, mineral wax, synthetic wax, a wax containing organic acids and/or esters, anhydrides, an emulsifier containing a mixture of organic acids and/or esters, and combinations thereof; and, '(A) a wax core,'} 'wherein said polymeric shell comprises at least one polymer ...

Crack-resistant cement composition

A cement composition for use in a well that penetrates a subterranean formation comprising: cement; water; and an additive comprising zirconium dioxide, wherein at least a portion of the zirconium dioxide is in a metastable tetragonal phase, and wherein some or all of the zirconium dioxide that is in the metastable tetragonal phase transforms to a stable monoclinic phase after a stress is applied to the cement composition. The additive also reduces the dimensions of a crack located within the set cement composition. A method of cementing in a subterranean formation comprising: introducing a cement composition into the subterranean formation.

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a carrier fluid; anda plurality of polymer fibers.2. The LCM composition of claim 1 , wherein the plurality of polymer fibers comprises a plurality of polypropylene fibers.3. The LCM composition of claim 1 , wherein the plurality of polymer fibers each have a length in the range of 1 millimeters (mm) to 6 millimeters.4. The LCM composition of claim 1 , wherein the plurality of polymer fibers comprises a plurality of polyacrylonitrile fibers.5. The LCM composition of claim 1 , where the plurality of polymer fibers comprise an amount in the range of 0.25 weight of the total weight (w/w %) to 1.0 w/w %.6. The LCM composition of claim 1 , wherein the carrier fluid comprises at least one of diutan gum claim 1 , xanthan gum claim 1 , and welan gum.7. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.8. The LCM composition of claim 1 , comprising cement.9. The LCM composition of claim 8 , wherein the cement comprises ...

CALCIUM-ALUMINO-SILICATE-HYDRATE NANO-SEEDS SUSPENSION AND PREPARATION METHOD THEREOF

The invention discloses a calcium-alumino-silicate-hydrate nano-seeds suspension and preparation method thereof. The preparation method of calcium-alumino-silicate-hydrate nano-seeds suspension includes the following steps: dropwise adding the aqueous solution of calcium source, the aqueous solution of silicon source and the aqueous solution of aluminum source to the solution of polycarboxylate superplasticizer, and adjusting the pH value to 10.0˜13.5, and continuously stirring to obtain the calcium-alumino-silicate-hydrate nano-seeds suspension. The beneficial effect in the present invention is: the calcium-alumino-silicate-hydrate nano-seeds has small particle size, good dispersion stability, and it can effectively improve the early hydration and mechanical performance of cement-based materials, and has good application prospects; the preparation process is simple, without washing, drying, ultrasonic dispersion and other subsequent processes, suitable for large-scale production. 1. A preparation method of calcium-alumino-silicate-hydrate nano-seeds suspension , including the following steps:dropwise adding an aqueous solution of calcium source, an aqueous solution of silicon source and an aqueous solution of aluminum source to a solution of polycarboxylate superplasticizer, and adjusting a pH value to 10.0˜13.5, and continuously stirring to obtain the calcium-alumino-silicate-hydrate nano-seeds suspension, a molar ratio of calcium to silicon is 0.2 to 1.8, a molar ratio of aluminum to silicon is 0.01 to 1.0, a temperature of the stirring reaction is 5˜60° C., and a time of the stirring reaction is 0.5˜24 h; and during the stirring reaction, nitrogen gas is required.2. The preparation method of the calcium-alumino-silicate-hydrate nano-seeds suspension according to claim 1 , wherein the aqueous solution of calcium source is one or more of calcium formate claim 1 , calcium acetate claim 1 , calcium nitrate claim 1 , calcium bicarbonate and calcium gluconate.3. The ...

HAZING CONTROL FOR CARBONATABLE CALCIUM SILICATE-BASED CEMENTS AND CONCRETES

The invention provides novel methods and compositions that mitigate the occurrence of hazing of products made from carbonatable calcium silicate-based cements. The methods and compositions of the invention may be applied in a variety of cement and concrete components in the infrastructure, construction, pavement and landscaping industries. 1. A method for mitigating or reducing hazing on a concrete product , comprising:prior to curing cement to form a concrete product, adding to the concrete mixture an admixture comprising one or more components capable of reacting with one or more of soluble alkali, alkaline earth, sulfate or chloride ions to form a low solubility material.2. The method of claim 1 , further comprising:curing the cement to form a concrete product.3. The method of claim 1 , wherein adding to cement an admixture comprises adding a solid admixture.4. The method of claim 1 , wherein adding to cement an admixture comprises adding a liquid admixture.5. The method of claim 1 , wherein adding to cement an admixture comprises adding a solid admixture and a liquid admixture.6. The method of claim 1 , wherein the cement is a carbonatable calcium silicate-based cement.7. The method of claim 6 , wherein the carbonatable calcium silicate-based cement comprises calcium silicate and one or more discrete calcium silicate phases selected from CS (wollastonite or pseudowollastonite) claim 6 , C3S2 (rankinite) claim 6 , C2S (belite claim 6 , larnite claim 6 , bredigite) claim 6 , and an amorphous calcium silicate phase at about 30% or more by mass of the total phases.8. The method of claim 6 , wherein in the carbonatable calcium silicate-based cement elemental Ca and elemental Si are present in the composition at a molar ratio from about 0.8 to about 1.2 and metal oxides of Al claim 6 , Fe and Mg are present in the composition at about 30% or less by mass.9. The method of claim 6 , wherein the solid admixture comprises one or more selected from calcium aluminate claim ...

ACCELERATOR FOR MINERAL BINDER COMPOSITIONS

An additive for mineral binder composition, in particular accelerators for mineral binder compositions, in particular cementitious binder compositions. The accelerator includes 35 to 99.7 w % of at least one mineral filler F with a particle size D50<5 μm, preferably <4 μm, most preferred <3.5 μm, 0.3 to 65 w % of a sodium aluminate SA, and 0 to 45 w % of at least one other inorganic compound I selected from the group consisting of calcium aluminate cements and/or sulfates of alkali or alkaline earth metals. Further, corresponding mineral binder compositions as well as uses and processes, including the acceleration of setting and curing of mineral binder compositions at low temperatures. 1. A composition comprising or consisting ofa) 35-99.7 w % of at least one mineral filler F with a particle size D50<5 μm,b) 0.3-65 w % of a sodium aluminate SA,c) 0-45 w % of at least one other inorganic compound I selected from the group consisting of calcium aluminate cements and/or sulfates of alkali or alkaline earth metals,d) optionally further additives for mineral binder compositions.2. A composition according to claim 1 , wherein the mineral filler F is selected from the group consisting of carbonates and/or hydrogencarbonates of alkali and/or alkaline earth metals.3. A composition according to claim 1 , wherein the sodium aluminate SA is NaAlO.4. A composition according to claim 1 , wherein the at least one other inorganic compound I is lithium sulfate and is comprised in 0.1-45 w % claim 1 , related to the total weight of the composition.5. A composition according to claim 1 , wherein it additionally comprises a superplasticizer claim 1 , in an amount of 0.1-10 w % claim 1 , related to the total weight of the composition.6. A process for the production of a composition according to claim 1 , wherein it comprises a step dedicated to reduce dust formation during storage claim 1 , transportation claim 1 , metering and/or dosage of the composition.7. A process according to ...

MODIFIED GEOPOLYMER AND MODIFIED GEOPOLYMER COMPOSITE AND PROCESS FOR THE PRODUCTION THEREOF

The invention relates to a modified geopolymer and a modified geopolymer composite comprising additive. The additive is preferably an athermanous additive. The modification is with one or more water-soluble compounds, the water-soluble compound is preferably selected from phosphorus compounds, nitrogen compounds, copper compounds, silver compounds, zinc compounds, tin compounds and magnesium compounds. Also, it relates to compositions which contain the modified geopolymer or modified geopolymer composite. The compositions preferably comprise vinyl aromatic polymer and are in the form of a foam. 2. The process of claim 1 , wherein the mixing in step a) comprises the mixing of an aluminosilicate claim 1 , a phosphoaluminate claim 1 , an alkaline silicate and/or an alkaline aluminate.3. The process of claim 1 , wherein the mixing in step a) involves one or more materials selected from the group consisting of dehydroxylated kaolinite claim 1 , metakaolin claim 1 , metakaolinite claim 1 , fly ash claim 1 , furnace slag claim 1 , red mud claim 1 , thermal silica claim 1 , fumed silica claim 1 , halloysite claim 1 , mine tailings claim 1 , pozzolan claim 1 , kaolin claim 1 , and building residues claim 1 , preferably wherein the mixing in step a) involves one or more materials selected from the group consisting of metakaolin claim 1 , metakaolinite claim 1 , furnace slag claim 1 , fly ash claim 1 , and fumed silica claim 1 , in particular wherein the mixing in step a) involves metakaolin or metakaolinite claim 1 , furnace slag claim 1 , fly ash claim 1 , or a mixture thereof.4. The process of claim 1 , wherein one or more of step a) and step c) comprises mixing in a conical screw mixer claim 1 ,preferably wherein both step a) and step c) comprise mixing in a conical screw mixer.5. The process of claim 1 , wherein the additive is an athermanous additive claim 1 , a. carbon-based athermanous additives,', 'b. metal athermanous additives,', 'c. metal oxide athermanous ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement; anda carrier fluid, wherein the carrier fluid comprises an aqueous carrier fluid that includes at least one of diutan gum, xanthan gum, and welan gum.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.3. The LCM composition of claim 1 , wherein the weight ratio of carrier fluid to cement clinker is 1:1.4. The LCM composition of claim 1 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.5. The LCM composition of claim 1 , comprising a plurality of polymer fibers.6. The LCM composition of claim 5 , wherein the polymer fibers comprise polypropylene fibers.7. The LCM composition of claim 1 , comprising particulate glass having an aspect ratio greater than or less than 1.8. The LCM composition of claim 7 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes. This application is a continuation of and claims ...

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;cement, wherein the cement comprises API Class G cement; anda carrier fluid.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , or API Class G cement clinker.3. The LCM composition of claim 1 , wherein the weight ratio of carrier fluid to cement clinker is 1:1.4. The LCM composition of claim 1 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.5. The LCM composition of claim 1 , comprising a plurality of polymer fibers.6. The LCM composition of claim 5 , wherein the polymer fibers comprise polypropylene fibers.7. The LCM composition of claim 1 , comprising particulate glass having an aspect ratio greater than or less than 1.8. The LCM composition of claim 7 , wherein the particulate glass comprises a plurality of glass fibers or a plurality of glass flakes. This application is a continuation of and claims priority from U.S. Non-provisional application Ser. No. 15/962,720 filed Apr. 25, ...

ACCELERATING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS

The present invention describes a hardening accelerating admixture for hydraulic binders, the accelerator being based on transition metal silicate hydrates having the general formula: aMeObMO cAlOSiOdHO 1) where -Me represents a transition metal whose molar coefficient a is in a range between 0.001 and 2, preferably between 0.01 and 1; -M represents an alkaline earth metal whose molar coefficient b is in a range between 0 and 2, preferably between 0.3 and 1.6; —The molar coefficient c for AlOis in a range between 0 and 2, preferably between 0.1 and 1; —HO represents the hydration water of the silicate hydrate whose molar coefficient d can vary within a wide range between 0.5 and 20; x and y can both be equal to 1 or different, depending on the valence of the transition metal, given that the valence of the oxygen atom in the metal oxide is equal to 2. 1. Method of accelerating admixtures for hydraylic binders with a transition metal silicate hydrate having general formula{'br': None, 'sub': x', 'y', '2', '3', '2', '2, 'aMeO.bMO.cAlO.SiO.dHO \u2003\u20031)'} Me represents a transition metal whose molar coefficient a is in a range between 0.001 and 2, preferably between 0.01 and 1;', 'M represents an alkaline earth metal whose molar coefficient b is in a range between 0 and 2, preferably between 0.3 and 1.6;', {'sub': 2', '3, 'The molar coefficient c for AlOis in a range between 0 and 2, preferably between 0.1 and 1;'}, {'sub': '2', 'HO represents the hydration water of the silicate hydrate whose molar coefficient d can vary within a wide range between 0.5 and 20;'}, 'x and y can both be equal to 1 or different, depending on the valence of the transition metal, given that the valence of the oxygen atom in the metal oxide is equal to 2, 'where'}and being characterized by the presence of particles with a diameter lower than 1,000 nm.2. The method according to wherein the transition metal is selected from chromium (Cr) claim 1 , manganese (Mn) claim 1 , iron (Fe) claim 1 ...

Crack-resistant cement composition

A cement composition for use in a well that penetrates a subterranean formation comprising: cement; water; and an additive comprising zirconium dioxide, wherein at least a portion of the zirconium dioxide is in a metastable tetragonal phase, and wherein some or all of the zirconium dioxide that is in the metastable tetragonal phase transforms to a stable monoclinic phase after a stress is applied to the cement composition. The additive also reduces the dimensions of a crack located within the set cement composition. A method of cementing in a subterranean formation comprising: introducing a cement composition into the subterranean formation.

Single paste type hydraulic dental filling composition

According to one aspect of the present disclosure, there is provided a single paste type hydraulic dental filling composition. The single paste type hydraulic dental filling composition includes hydraulic cement, non-aqueous liquid having hygroscopic properties, and a radiopaque material.

MULTI-COMPONENT COMPOSITION

A multi-component composition is described that includes an epoxy component having at least one reactive epoxy resin, one hardener component that includes at least one hardener for the epoxy resin, one cement component including cement and at least one filler, and also from 0.1% to 1% by weight, based on the total weight of the multi-component composition, of at least one polymeric binder that is solid at 23° C. Addition of the at least one polymeric binder can significantly improve relevant properties of the multi-component composition, examples being more particularly adhesion thereof, compressive strength thereof and shrinkage thereof. Also described, is a process for producing a coated substrate with the aid of the composition described above, and also coated substrates that can be produced by a corresponding process. 1. A multicomponent composition comprisingan epoxy component comprising at least one reactive epoxy resin,a hardener component comprising at least one hardener for the at least one reactive epoxy resin,a cement component comprising cement and at least one filler, and0.1% to 10% by weight, based on the total weight of the multicomponent composition, of at least one polymeric binder which wherein in the polymeric binder is solid at 23° C.2. The multicomponent composition as claimed in claim 1 , wherein the epoxy component and/or the hardener component comprises water.3. The multicomponent composition as claimed in claim 1 , wherein the at least one filler in the cement component comprises sand claim 1 , alumina claim 1 , calcium carbonate claim 1 , fibers and/or amorphous silica (fumed silica).4. The multicomponent composition as claimed in claim 1 , wherein the epoxy resin comprises a bisphenol F and/or bisphenol A resin.5. The multicomponent composition as claimed in claim 1 , wherein the hardener component comprises a polyamine.6. The multicomponent composition as claimed in claim 1 , wherein the at least one polymeric binder which is solid at 23° ...

STRENGTH ENHANCING ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS

A strength enhancing admixture for cementitious and/or pozzolanic compositions including, based on the total dry weight of the admixture, calcium silicate hydrate in an amount of from about 0.5 to about 94 weight percent, and: i) at least one alkanolamine in an amount of from about 0.5 to about 55 weight percent; ii) at least one inorganic accelerator in an amount of from about 0.5 to about 85 weight percent; and iii) at least one carbohydrate in an amount of from about 0.5 to about 50 weight percent; wherein the calcium silicate hydrate includes a product of a reaction of a water-soluble calcium compound with a water-soluble silicate compound in presence of a water-soluble dispersant; and wherein the at least one inorganic accelerator includes any inorganic accelerator(s) other than calcium silicate hydrate. 1. A strength enhancing admixture for cementitious and/or pozzolanic compositions comprising , based on the total dry weight of the admixture , calcium silicate hydrate in an amount of from about 0.5 to about 94 weight percent , and: i) at least one alkanolamine in an amount of from about 0.5 to about 55 weight percent; ii) at least one inorganic accelerator in an amount of from about 0.5 to about 85 weight percent; and iii) at least one carbohydrate in an amount of from about 0.5 to about 50 weight percent; wherein the calcium silicate hydrate comprises a product of a reaction of a water-soluble calcium compound with a water-soluble silicate compound in presence of a water-soluble dispersant; and wherein the at least one inorganic accelerator comprises any inorganic accelerator(s) other than calcium silicate hydrate.2. The strength enhancing admixture of claim 1 , wherein the water-soluble dispersant comprises at least one of a polycarboxylate ether or a polyaryl ether.3. The strength enhancing admixture of claim 1 , wherein the water-soluble dispersant comprises a polycarboxylate ether.4. The strength enhancing admixture of claim 1 , wherein the alkanolamine ...

POWDERED QUICK-SETTING AGENT, QUICK-SETTING MATERIAL, QUICK-SETTING MATERIAL CURED PRODUCT, AND SPRAYING METHOD

A powdered quick-setting agent containing a calcium aluminate and a sodium silicate, preferably further containing at least one selected from the group consisting of an alkali metal sulfate, an alkaline earth metal sulfate, and an aluminum sulfate. 1. A powdered quick-setting agent , comprising a calcium aluminate and a sodium silicate.2. The powdered quick-setting agent according to claim 1 , wherein a molar ratio of SiOto NaO in the sodium silicate is 0.5 to 1.5.3. The powdered quick-setting agent according to claim 1 , wherein a number of hydrates in the sodium silicate is 9 or less.4. The powdered quick-setting agent according to claim 1 , wherein a molar ratio of CaO to AlOin the calcium aluminate is 2.0 to 3.0.5. The powdered quick-setting agent according to claim 1 , further comprising at least one selected from the group consisting of an alkali carbonate claim 1 , a calcium hydroxide claim 1 , and an alum.6. The powdered quick-setting agent according to claim 1 , further comprising at least one selected from the group consisting of an alkali metal sulfate claim 1 , an alkaline earth metal sulfate claim 1 , and an aluminum sulfate.7. The powdered quick-setting agent according to claim 5 , wherein the alum is present claim 5 , and wherein the alum is at least one selected from the group consisting of a potassium alum claim 5 , a sodium alum claim 5 , and an ammonium alum.8. The powdered quick-setting agent according to claim 1 , comprising the calcium aluminate in an amount of 30 to 80 parts by mass and the sodium silicate in an amount of 0.5 to 20 parts by mass in 100 parts by mass of the powdered quick-setting agent.9. The powdered quick-setting agent according to claim 5 , comprising the alkali carbonate in an amount of 1 to 20 parts by mass claim 5 , the calcium hydroxide in an amount of 5 to 30 parts by mass claim 5 , and the alum in an amount of 0.5 to 30 parts by mass in 100 parts by mass of the powdered quick-setting agent.10. The powdered quick- ...

DOWNHOLE FLUIDS AND METHODS OF USE THEREOF

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures. 125-. (canceled)26. A system for cementing a wellbore , the system comprising: a clay;', 'a hydroxylated polymer;', 'a cation;', 'the clay, the hydroxylated polymer, and the cation together in an amount sufficient to render the downhole fluid thermally stable at a temperature of 400° F.; and', 'at least one additional downhole fluid component; and', 'a cement base; and, 'a cement comprisinga pump operable to pump the cement into a wellbore in a subterranean formation in an amount sufficient to fill an annulus between a casing in the wellbore and the wellbore and to bond to both the casing and the wellbore.27. The system of claim 26 , further comprising mixing equipment operable to mix the cement prior to pumping the cement into the wellbore.28. The system of claim 26 , wherein the mixing equipment comprises a jet mixer operable to continuously mix the cement as it is pumped into the wellbore.2934-. (canceled)35. The system of claim 26 , wherein the clay comprises a phyllosilicate clay.36. The system of claim 35 , wherein the phyllosilicate clay comprises a smectite clay.37. The system of claim 35 , wherein the phyllosilicate clay comprises a sepiolite clay.38. The system of claim 35 , wherein the phyllosilicate clay comprises a palygorskite clay.39. The system of claim 26 , wherein the cement comprises salt water.40. A system for introducing a spacer into a subterranean formation claim 26 , the system comprising: a clay;', 'a ...

Durability-improved ultra-quick-hardening cement concrete composition and repairing method for road pavement therewith

The present invention relates to an ultra-rapid hardening cement concrete composition with improved durability, and a pavement maintenance and repair method using the same. According to the present invention, the ultra-rapid hardening cement concrete composition comprises: 5 to 45 weight percent of an ultra-rapid hardening coupling agent; 15 to 75 weight percent of fine aggregates; 15 to 70 weight percent of coarse aggregates; 1 to 25 weight percent of a performance modifier; and 4 to 30 weight percent of water. The ultra-rapid hardening agent comprises: 5 to 79 weight percent of earl-strength Portland cement; 10 to 50 weight percent of calcium or magnesium sulfonate aluminate; 2 to 35 weight percent of blast furnace slag powder with a particle size of 3,000 to 9,000 cm^2/g; 1 to 30 weight percent of tricalcium aluminate; 1 to 30 weight percent of peat or turf; 1 to 20 weight percent of gypsum; 1 to 10 weight percent of kaolin; 1 to 10 weight percent of nitric kalmite; 1 to 10 weight percent of lithium carbonate; 1 to 10 weight percent of clinoptilolite; 0.5 to 5 weight percent of a deforming agent; and 0.5 to 5 weight percent of a water reducing agent. According to the present invention, the ultra-rapid hardening cement concrete composition promotes the densification of an inner tissue to form dense concrete, thereby providing an effect of improving strength and durability, in particular, waterproofness and corrosion of the concrete. Moreover, wear resistance is excellent to improve scaling resistance, thereby providing an effect of preventing deterioration of a surface of pavement. Moreover, provided are effects of preventing surface crack and expansion breakage caused by drying shrinkage, and providing a self-crack curing effect, which absorbs water and discharges the water again to fill a crack while existing inside the cured concrete in a reduced volume state.

Polymer modified cement concrete composition for revealing high early strength and repairing method of concrete structure using the composition

The present invention relates to a polymer-modified cement concrete composition for revealing high early strength containing 8 to 35 wt% of high early strength cement-based binding material, 20 to 65 wt% of fine aggregate, 25 to 65 wt% of coarse aggregate, 0.1 to 20 wt% of water, and 0.01 to 20 wt% of polymer-based modifier, in which the polymer-based modifier contains 78 to 99 wt% of styrene-acryl emulsion, 0.01 to 15 wt% of polyacrylic acid ester (excluding polymethyl acrylate), 0.01 to 15 wt% of polymethyl acrylate, 0.01 to 15 wt% of methacrylic acid methyl butadiene, and 0.01 to 15 wt% of vinyl toluene, and a repairing method for a concrete structure using the same. According to the present invention, concrete operability and concrete durability are improved based on the addition of the polymer-based modifier in which the styrene-acryl emulsion, polyacrylic acid ester (excluding polymethyl acrylate), polymethyl acrylate, methacrylic acid methyl butadiene, and vinyl toluene are mixed and the high early strength cement-based binding material. In addition, concrete defects can be reduced based on the improvement of flexural strength, tensile strength, initial strength, long-term strength, chloride resistance, freezing and thawing resistance, and the like.

Ion Binding Agent for Cement Mixture, Ion Binding Typed Polymer Cement Mortar Using the Agent, and Repairing Method Using the Mortar

The present invention relates to an ion binding agent composition for mixing cement, which prevents harmful ion from being permeated by binding the harmful ion such as chloride, sulphate, or the like, and at the same time, densifies a surface of concrete when water continuously permeates so as to achieve a water proof effect, an ion binding type polymer cement mortar composition for repairing a concrete cross section desirably including the same, and to a method for repairing a high durable concrete cross section by using the mortar composition. The ion binding agent composition for mixing cement comprises: calcium aluminate hydrate; tobermorite; and brucite, wherein fineness (Blaine) is at a range of 1,200 to 4,000. More specifically, the ion binding agent composition comprises: 15 to 40 parts by weight of calcium aluminate hydrate; 30 to 50 parts by weight of tobermorite; and 30 to 60 parts by weight of brucite. The ion binding type polymer cement mortar composition for repairing a concrete cross section according to the present invention is obtained by mixing 0.5 to 4.0 wt% of the ion binding agent composition comprising calcium aluminate hydrate; tobermorite; and brucite, based on a total weight of mortar. The method for repairing a high durable concrete cross section is configured to fill the ion binding type polymer cement mortar composition after removing a deteriorated part of a concrete structure when a cross section of a deteriorated concrete structure is being repaired.

Strength-enhancing additive for cement compositions

FIELD: building.SUBSTANCE: invention relates to a strength-enhancing additive for cementing and/or pozzolanic compositions, which includes, in terms of the total dry weight of the additive, calcium silicate hydrate in an amount of about 0.5 to about 94 wt %, and: i) at least one alkanolamine in an amount of about 0.5 to about 55 wt %; ii) at least one inorganic hardening accelerator in an amount of from about 0.5 to about 85 wt %; and iii) at least one carbohydrate in an amount of about 0.5 to about 50 wt %t; in which calcium silicate hydrate includes the reaction product of a water-soluble calcium compound with a water-soluble silicate compound in the presence of a water-soluble dispersant; and in which at least one inorganic hardening accelerator includes any inorganic hardening accelerator (hardening accelerators) that is different from calcium silicate hydrate. The cementing composition, a method for improving the early and/or subsequent compressive strength of the cementing composition, and a method for producing the cementing composition are also described.EFFECT: proposed additive enhances the strength of cementing and/or pozzolanic compositions.16 cl, 62 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 749 875 C2 (51) МПК C04B 28/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 22/08 (2021.02); C04B 22/14 (2021.02); C04B 24/26 (2021.02); C04B 28/00 (2021.02); C04B 40/00 (2021.02); C04B 14/043 (2021.02); C04B 2103/32 (2021.02); C04B 2103/50 (2021.02); C04B 2111/20 (2021.02) (21)(22) Заявка: 2019122856, 21.12.2017 21.12.2017 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 27.12.2016 US 62/439,278 (43) Дата публикации заявки: 29.01.2021 Бюл. № 4 (45) Опубликовано: 17.06.2021 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: WO 2010026155 A1, 11.03.2010. US 20150144032 A1, 28.05.2015. RU 2011112305 A1, 10.11.1997. EP 1896376 A4, 02.01.2012. CA 2439660 A1, 12.09.2002. (86 ...

Eco-friendly self-healing lightweight bubble grouting composition and preparation method thereof

본 발명은 그라우팅용 조성물에 관한 것으로, 더욱 상세하게는 친환경 자기치유 경량기포 그라우팅용 조성물 및 이의 제조방법에 관한 것이다. 본 발명에 따르면, 상온 급결성이 우수해져 공사기간을 단축하고, 후속공정을 처리하기 쉬우며, 원가 및 인건비를 절감하고, 시공의 용이성을 달성함은 물론 유해물질 방출이 안되기 때문에 환경친화적인 경량기포 콘크리트를 제공하며, 제공된 환경친화적 자기치유 경량기포 그라우팅용 조성물은 흐름성과 경량성이 우수하여 대상영역의 형상에 구애받지 않고 다양하게 적용할 수 있다. The present invention relates to a composition for grouting, and more particularly, to an eco-friendly self-healing lightweight foam grouting composition and a manufacturing method thereof. According to the present invention, the rapid setting at room temperature is excellent, so the construction period is shortened, the follow-up process is easy to handle, the cost and labor cost are reduced, the ease of construction is achieved, and the environment is light and environmentally friendly because no harmful substances are emitted. Aerated concrete is provided, and the provided environmentally friendly self-healing lightweight foam grouting composition has excellent flowability and lightness, so it can be applied in various ways regardless of the shape of the target area.

High performance latex modified quick-hardening cement concrete composition using modified sulfur nano solution and road repairing method using the same

The present invention relates to a high-performance latex-modified rapid setting cement concrete composition containing a modified sulfur nano-aqueous solution, and comprising a rapid setting binder, fine aggregate, coarse aggregate, mixing water, and a high-performance latex modifier. The rapid setting binder comprises high early strength Portland cement, calcium sulfoaluminate, anhydrite, sodium aluminate, magnesium fluoride, lithium metaphosphate, and citrus peel fibers. The high-performance latex modifier comprises a styrene-ethylene-butylene-styrene (SEBS) block copolymer, an acrylate-styrene-acrylonitrile copolymer, a modified sulfur nano-aqueous solution, an ethylene-ethyl acrylate-maleic anhydride copolymer, and potassium-perfluorobutane-sulfonate. The modified sulfur nano-aqueous solution is manufactured by a manufacturing method comprising: a step of mixing a sulfur monomer and a dicyclopentadiene acrylate monomer represented by chemical formula 1 to obtain modified sulfur; a step of obtaining a uniform W/O emulsion; and a step of emulsifying the W/O emulsion, and then electrolyzing the same. The cement concrete composition may satisfy structural performance, workability, and the like, and in particular, may extend the durability life of a structure.

单糊剂型水硬牙科充填组合物

根据本发明的一个方面，提供了一种单糊剂型水硬牙科充填组合物，包括：水硬粘固粉；具有吸湿性能的无水液体和不透射线的材料。

High Durability Injection Mortar Composition

The present invention relates to a highly durable injection mortar composition which comprises: a binder including cement; calcium sulfoaluminate; anhydrite; calcium aluminate; metakaolin; aluminum powder; alkali metal salts; glycol; and sodium molybdate date.

Shrinkage-reducing type polymer modified quick-hardening cement concrete composite and overlay pavement method for concrete using the same

The present invention relates to a shrinkage-reducing polymer modified ultra-fast hardening cement concrete composition which comprises 5 to 45 wt% of a shrinkage-reducing strength developer, 10 to 75 wt% of fine aggregate, 7 to 65 wt% of coarse aggregate, 0.01 to 25 wt% of a polymer modifier, and 0.1 to 30 wt% of water. The shrinkage-reducing strength developer includes 100 parts by weight of high early strength Portland cement, 20 to 40 parts by weight of calcium sulfoaluminate, 1 to 20 parts by weight of tin oxide, 1 to 20 parts by weight of blast furnace slag, 1 to 20 parts by weight of zinc carbonate, 0.1 to 10 parts by weight of magnesium oxide, 0.1 to 10 parts by weight of sericite, and 0.1 to 10 parts by weight of calcium sulfate. The polymer modifier includes 100 parts by weight of a polymethyl methacrylate-(adamantyl)acrylate copolymer, 20 to 50 parts by weight of a styrene-butadiene-styrene copolymer, 10 to 30 parts by weight of N,N-dimethyl acrylamide, 0.1 to 10 parts by weight of phloretin sulfonate represented by chemical formula 1, and 0.1 to 10 parts by weight of polyrotaxane. According to the present invention, the shrinkage-reducing polymer modified ultra-fast hardening cement concrete composition provides excellent resistance to drying shrinkage and improved resistance to freezing/thawing, neutralization, and salt damage.

Colored and nonskid cement composition and pavement method of the same

A non-skid colored polymer cement composition and a pavement method thereof are provided to show excellent frictional force, load resistance, wear resistance and colorance. A non-skid colored polymer cement composition comprises 55-65 wt% of an ultra-rapid hardening cement mixture and 35-45 wt% of a water-soluble polymer mixture, wherein the ultra rapid hardening cement mixture is comprised of ultra-fine cement having a fineness of 4,000-6,000 cm^2/g, blast furnace slag, calcium carbonate, an aluminate rapid hardening agent, an aluminate expanding agent and a fluidifying agent, and the water-soluble polymer mixture is comprised of a polymer dispersion selected from acrylic resins and SBR resins, a pigment, an anti-foaming agent, a dispersant, a thickening agent, a water-reducing agent, a hydration retardant, a levelling agent, a shrinkage reducing agent, aluminum stearate and ethylene glycol.

Material for reducing ground resistance using rapidly curable inorganic material

A rapidly curable inorganic material composition for reducing ground resistance is provided to prevent precipitation of cement particles generated from a cement-based emulsion having a high water/cement ratio and ensure excellent flowability and usability of a slurry emulsion. A rapidly curable inorganic material composition for reducing ground resistance includes 25-35 parts by weight of cement, 15-25 parts by weight of calcium sulfoaluminate or calcium aluminate, 10-20 parts by weight of gypsum, 10-20 parts by weight of slag fine powder, 3-7 parts by weight of fly ash, 3-7 parts by weight of limestone fine powder, 3-7 parts by weight of carbon powder, 0.5-1.5 parts by weight of a dispersant, 0.3-0.7 parts by weight of carbon fiber, 0.03-0.07 parts by weight of a retardant, and 2.45 parts by weight of lithium hydroxide or magnesium hydroxide. The dispersant is any one selected from lignin sulfonate, melamine sulfonate, naphthalene sulfonate, and polycarbonic acid.

Polymer modified high-performance cement concrete composite for revealing high early strength and overlay pavement method for concrete using the composite

The present invention relates to a polymer-modified cement concrete composition for expressing early strength and to a method for concrete overlay pavement using same. The composition comprises: a cement-based binder of 3-38 wt%; a fine aggregate of 25-70 wt%; a coarse aggregate of 25-70 wt%; water 0.1-20 wt%; and a polymer-based binder of 0.01-20 wt%. The cement-based binder comprises: normal Portland cement of 10-60 wt%; magnesium sulfo-aluminate of 10-60 wt%; plaster of 0.01-10 wt%; blast furnace slag of 0.01-20 wt%; an alumina powder of 0.1-10 wt%; and calcium aluminate of 0.01-10 wt%. The polymer-based binder comprises: styrene of 15-75 wt%; methyl methacrylate of 15-50 wt%; butyl acrylate of 5-40 wt%; itaconic acids of 0.1-20 wt%; and butadiene of 0.1-20 wt%. By means of the present invention, the concrete composition can have improved workability and durability. The concrete composition can especially have improved bending strength, tensile strength, early strength, long-term strength, chloride resistance, and freezing and thawing resistance so that defects in the concrete can be reduced.

Settable compositions comprising cement kiln dust and methods of use

Embodiments relate to the use of alkali aluminates and alkali silicates with cement kiln dust to form a settable composition for use in subterranean operations. An embodiment provides a method comprising: introducing a settable composition comprising cement kiln dust, an alkali aluminate, an alkali silicate, and an aqueous carrier fluid into a subterranean formation; and allowing the settable composition to set and thereby reduce fluid flow through a portion of the subterranean formation.

Settable compositions comprising cement kiln dust and methods of use

Embodiments relate to the use of alkali aluminates and alkali silicates with cement kiln dust to form a settable composition for use in subterranean operations. An embodiment provides a method comprising: introducing a settable composition comprising cement kiln dust, an alkali aluminate, an alkali silicate, and an aqueous carrier fluid into a subterranean formation; and allowing the settable composition to set and thereby reduce fluid flow through a portion of the subterranean formation.

Quick-setting admixture and spraying method using it

A slurry quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate, an alkali metal sulfate, and water; and a quick-setting cement concrete comprising such a slurry quick-setting admixture and cement concrete. The slurry quick-setting admixture may further contain calcium sulfate, calcium hydroxide and/or aluminum hydroxide, a retarder, etc. The spraying method comprises mixing water and a powder quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate and an alkali metal sulfate, to form a slurry quick-setting admixture, mixing this slurry quick-setting admixture with cement concrete to form a quick-setting cement concrete, and spraying this quick-setting cement concrete.

well fluid, well cementation system and method of treating an underground formation

a presente divulgação refere-se a aditivos de fluido de poço incluindo uma argila, um polímero hidroxilado, um cátion e água. a divulgação refere-se ainda a fluidos de fundo de poço, incluindo fluidos de perfuração, espaços, cimentos e fluidos de distribuição de propantes contendo um aditivo de fluido de poço e métodos de uso desses fluidos. o aditivo fluido do poço pode ter qualquer uma das várias funções no fluido do poço e pode conferir qualquer uma das várias propriedades sobre ele, como a tolerância ao sal ou as viscosidades desejadas, mesmo em altas temperaturas do poço. The present disclosure relates to well fluid additives including a clay, a hydroxylated polymer, a cation and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements and propellant dispensing fluids containing a well fluid additive and methods of using such fluids. The well fluid additive may have any of several functions in the well fluid and may confer any of several properties on it, such as salt tolerance or desired viscosities, even at high well temperatures.

Grout composite

A grout composition is provided to prevent crack in a construction by employing natural gum, to obtain excellent waterproofing and higher strength in a construction by employing sodium bentonite and liquid acrylic resin. A grout composition comprises 60-85% by weight of powder formulation and 15-40% by weight of liquid formulation. The powder formulation comprises 50-60% by weight of cement, 35-45% by weight of silica, 0.10-0.15% by weight of aluminate, 0.25-0.4% by weight of naphthalene, 0.2-0.4% by weight of silica-fume, 1.5-2.4% by weight of sodium bentonite, and 2.5-2.9% by weight of natural gum powder. The liquid formulation comprises 17-23% by weight of liquid acrylic resin, 42-52% by weight of water, 7-8% by weight of EVA polymer as a liquid flocculant, 1.3-1.7% by weight of oil and fat and 19.4-25.6% by weight of superplasticizer(2.4-2.6% by weight of surfactant, 17-23% by weight of lignin). The oil and fat are from plant oil and animal fat. The cement in the powder formulation comprises 90% by weight of cement having particle size larger than 5mum and at most 15mum, and 10% by weight of cement having particle size of 1-5mum. The silica in the powder formulation comprises 30-50% by weight of silica having particle size of #6(at most 0.6mm) and 50-70% by weight of silica having particle size of #7(at most 0.3mm).

Cements for oil and gas cementing applications

A sulfate-resistant cement composition may contain calcium magnesium aluminum oxide silicate, brownmillerite, dolomite, periclase, and calcium aluminum oxide. The composition may contain the calcium aluminum oxide in an amount in the range of 0.01 to 2.0 wt. %. The composition may contain the brownmillerite in an amount of the range of 20 to 30 wt. %.

Cement compositions and methods of using the same

Cement compositions may comprise an aluminosilicate; a sodium aluminate, a calcium aluminate, a potassium aluminate, or a combination thereof; and water. In some cases, the cement does not include Portland cement. The cement may be used in a subterranean formation having corrosive components therein, wherein the set cement sheath is resistant to degradation from the corrosive components within the subterranean formation.

Cement compatible water-based drilling mud compositions

A water-based drilling mud for use in cementing operations includes water, LASSENITE® pozzolan-based additive, a heavy-weight additive, a viscosifier, a dispersant and at least one of a set activator, a fluid loss control additive and a shale stabilizer. A method of using the same includes allowing a cement composition to mix with the water-based drilling mud and allowing the mixture of the cement composition and the water-based drilling mud to set.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well. A Portland cement clinker may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement choker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Loss circulation compositions (LCM) having Portland cement clinker

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.

Plugging and abandoning a well using extended-life cement compositions

Methods and systems for plug-and-abandon applications are included. A method comprises providing an extended-life cement composition comprising calcium aluminate cement, water, and a cement set retarder. The method further comprises mixing the extended-life cement composition with a cement set activator to activate the extended-life cement composition, introducing the activated extended-life cement composition into a wellbore, and allowing the activated extended-life cement composition to set in the wellbore to form a plug in the wellbore. The plug has a permeability of less than 0.1 millidarcy.

Crack-resistant cement composition

A cement composition for use in a well that penetrates a subterranean formation comprising: cement; water; and an additive comprising zirconium dioxide, wherein at least a portion of the zirconium dioxide is in a metastable tetragonal phase, and wherein some or all of the zirconium dioxide that is in the metastable tetragonal phase transforms to a stable monoclinic phase after a stress is applied to the cement composition. The additive also reduces the dimensions of a crack located within the set cement composition. A method of cementing in a subterranean formation comprising: introducing a cement composition into the subterranean formation.

장기 내구성이 향상된 속경성 시멘트 콘크리트 조성물 및 도로 포장 유지 보수 방법

본 발명은 장기 내구성이 향상된 속경성 시멘트 콘크리트 조성물에 있어서, 속경성 혼합재 5 내지 45 중량%, 잔골재 30 내지 60 중량%, 굵은골재 15 내지 60 중량%, 라텍스 개질제 3 내지 20 중량%, 및 물 2 내지 25 중량%를 함유하고, 상기 속경성 혼합재는 조강 포틀랜드 시멘트 20 내지 80 중량부, 마그네슘설포알루미네이트 10 내지 50 중량부, 비정질 트리칼슘알루미네이트 1 내지 30 중량부, 멀라이트 5 내지 20 중량부, 알킬렌아마이드 0.01 내지 10 중량부, 알긴산프로필렌글리콜 0.01 내지 10 중량부, 스테아린산칼슘 0.01 내지 10 중량부, 및 알루민산칼슘 0.5 내지 10 중량부를 함유하며, 상기 라텍스 개질제는 클로로프렌 고무 30 내지 65 중량부, 망상 구조의 실록산 고무 10 내지 30 중량부, 리그닌 함량이 25 내지 40중량%이고 카르복실산 또는 이의 염으로 변성되지 않은 하이드록시메틸기를 갖는 셀룰로오스 나노섬유 15 내지 30 중량부 및 천연 셀락 수지 1 내지 10 중량부를 함유하여, 수밀성, 부착성, 내구성 및 균열 저항성 등을 유지하면서 염화물 침투저항성 및 기온변화에 따른 동결융해저항성이 우수하여 장기 내구성이 향상된 속경성 시멘트 콘크리트 조성물 및 도로 포장 유지 보수 방법에 관한 것이다.

Method of reinforcement of cross section of structure using polymer mortar with high heat and fast rigidity containing calcium sulfonate, calcium pomate and PBO fiber, and method seismic refractory reinforcement of structure using high-strength composite sheet made of glass fiber and aramid fiber

본 발명은 상기한 종래의 문제점을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 콘크리트 구조물의 보수부위에 치핑과 철근방청 후 보강시트를 설치하고 프라이머를 도포한 다음 모르타르를 충진하도록 함으로써, 부수부위가 부식되거나 보수부위에 충진된 모르타르 및 보강시트가 분리되는 것을 방지하게 되며, 보강시트를 유리섬유와 아마리트섬유를 혼합하여 형성시키고, 핀 또는 못으로 고정시켜 지지력을 향상시킴과 아울러 보수부위가 견고하게 고정되도록 하는 유리섬유와 아라미드섬유로 제작된 고강도 복합시트를 이용하여 구조물 단면을 복구하는 공법 및 구조물을 내진 내화 보강하는 공법을 제공한다. 본 발명에 따른 구조물 단면 보강 공법 및 구조물 내진 내화 보강 공법에 따르면, 보수보강용 모르타르에 의해 경화 구조체의 치밀성이 강화되며, 수화열에 따른 온도 균열이 억제될 수 있고, 결합재에 포함되는 미세 분말화한 첨가제를 사용하여 보수 보강 면의 압축 강도 등 물리적 강도가 강화되며, 콘크리트 면과의 접착 강도가 강화되어 내구성과 내수성, 내산성 및 내화성(난연성)이 향상됨으로써 보수 보강 효과를 장기간 유지할 수 있는 장점이 있고, 충격이나 진동이 가해지는 터널, 교량, 건물, 철도 구조물 등에 대한 시공시에도 신속한 시공이 가능하기 때문에 시공성 및 작업성이 매우 우수하며, 특히, 진동이 심한 현장이나 콘크리트 구조물에 있어서는 부착강도, 압축강도 등 물성이 강화되므로 모르타르 탈락이 발생하는 등 내구성 및 내진성이 부족한 문제점을 해결할 수 있다. 또한, 콘크리트 면과의 부착 강도가 강화되어 내구성과 내수성이 향상되고, 내화학성 및 방수성도 우수하며, 동경융해 및 염해에 대한 내성도 우수한 장점이 있다.

Mortar composition for repairment and reinforcement of concrete structure with improved water resistance, chemical resistance and attachment performance and method of repairing and reinforcing structure using the same

The present invention relates to a mortar composition for repairing and reinforcing a concrete structure with improved water resistance, chemical resistance and attachment performance and a structure repairing and reinforcing method using the same and, concretely, to a mortar composition for repair and reinforcement and a concrete structure repairing and reinforcing method applying the same, wherein the mortar composition for repair and reinforcement is capable of being simply constructed on a surface or a cross section of a concrete structure by repairing construction to improve attachment performance, durability and water resistance, also enhances initial setting speed to be effective in initial strength improvement, is excellent in even fire resistance and chemical resistance to be appropriate for repairing construction in a bad environment, and enhances dispersibility of reinforcement fiber as well as is excellent in physical properties such as compressive strength, bending strength, etc. to secure uniform properties in mortar for entire repairing and thus to enhance strength and to increase a crack suppression effect. The method comprises the steps of: chipping a cross section of a concrete structure which requires repair; applying a primer on the chipped cross section of the concrete structure; and applying the mortar composition for repairing the cross section of the concrete structure thereto.

Shotcrete Composition using Alteration of Mixture Ratio of Slag and Construction Method thereof

The present invention relates to a shotcrete composition with improved performance manufactured by using blast furnace slag fine powders, cement, and a cement mineral accelerator, and to a shotcrete construction method using the same. The shotcrete composition is manufactured by using a mixture of water, cement, fine aggregate, and coarse aggregate. According to an embodiment of the present invention, the shotcrete composition manufactured by varying the components of slag comprises blast furnace slag fine powders, and an accelerator which is introduced to the mixture to promote condensation of the mixture, wherein a first cement contained in the cement is substituted for the blast furnace slag fine powders, and the amount of the first cement is within a range of 30 to 40 parts by weight, based on 100 parts by weight of the cement. In addition, as the accelerator, a cement mineral accelerator comprising alkali metal carbonate, calcium ferroaluminate powders, calcium aluminate powders, calcium hydroxide, and alkali metal aluminate in a predetermined ratio is used, thereby improving compressive strength and bending strength while reducing rebound.

Quick-hardening cement concrete composition for repairing road having improved freezing-thawing durability and salt damage resistance and road repairing method using the same

The present invention relates to a rapid hardening cement concrete composition with improved resistance to salt damage and freeze-thawing and a road pavement repair and reinforcement method using the same. As a rapid hardening cement concrete composition having excellent resistance to salt damage and freeze-thawing, the composition comprises 3 to 55 wt% of a rapid hardening binder, 5 to 70 wt% of fine aggregate, 3 to 60 wt% of coarse aggregate, 0.01 to 30 wt% of a rapid hardening function improving agent, and 0.1 to 30 wt% of water. The rapid hardening binder includes 20 to 50 parts by weight of potassium thiosulfate, 10 to 30 parts by weight of calcium sulfoaluminate, 5 to 20 parts by weight of goethite, 5 to 20 parts by weight of calcium metasilicate, 1 to 10 parts by weight of potassium silicate, 1 to 10 parts by weight of gypsum, and 0.5 to 5 parts by weight of partially oxidized graphene based on 100 parts by weight of crude Portland cement. The rapid hardening function improving agent comprises 30 to 60 parts by weight of the ethylene-vinyl laurate-vinyl chloride copolymer, 1 to 10 parts by weight of 2,2-bis{4-(4-maleimidephenoxy)phenyl}propane, 1 to 10 parts by weight of trimethoxy[3-(phenylamino)propyl]silane, 1 to 10 parts by weight of cyanoethyl sucrose, 1 to 10 parts by weight of sulfo-dehydroabietic acid, and 0.5 to 5 parts by weight of alkyl phenol acetylene.

Concrete manufactured with a salt-resistance enhancing composition capable of self-repairing concrete cracks, and a method for manufacturing concrete structures with improved salt-resistance

The present invention relates to concrete manufactured with a salt-resistance enhancing composition capable of self-repairing concrete cracks, and a method for manufacturing a concrete structure with enhanced salt-resistance using the same. Provided is concreate manufactured with a salt-resistance enhancing composition capable of self-repairing concrete cracks which comprises an inorganic binding material, a natural pozzolan material, a self-repairing stimulator, a salt absorber, and a polymer dispersing agent, wherein in the salt-resistance enhancing composition capable of self-repairing concrete cracks, a part of a cement admixture is replaced during concrete mixing to ensure densification of a concrete structure, and ensure self-repair performance and salt-resistance at the same time.

Mortar composition for repair and reinforcement of concrete structure and repair and reinforcement method of concrete structure using same

The present invention relates to a mortar composition for repairing and reinforcing a concrete structure to facilitate construction and a concrete structure repair and reinforcement method using the same. According to the present invention, the mortar composition comprises: 8-30 wt% of cement; 40-83 wt% of fine aggregate; 2-20 wt% of fine blast furnace slag powder; 1.5-15 wt% of amorphous calcium aluminate; 0.5-10 wt% of titanium oxide; 0.5-15 wt% of gypsum; 0.1-5 wt% of copper oxide; 0.1-5 wt% of sepiolite; 0.1-5 wt% of beryllium oxide; 1-5 wt% of an acryl-modified powder resin; 0.1-5 wt% of polyvinyl acetate; 0.1-5 wt% of polyethylene glycol; 0.1-5 wt% of polyvinyl fluoride; 0.1-5 wt% of polydopamine; 0.1-5 wt% of silica fume; 0.1-5 wt% of a polycarboxylic acid-base fluidizer; 0.1-5.0 wt% of reinforcement fiber; and 0.1-5 wt% of a fluorine-based grade IV alkyl ammonium salt.

Solidifiying composion using circulation resource and the construction method thereof

본 발명은 산업계에서 발생되는 순환자원(산업 부산물)을 사용하여 시멘트계를 사용하지 않고도 시멘트, 고로슬래그 시멘트 및 칼슘 설포 알루미네이트계 특수시멘트가 포함된, 시멘트계 고화재를 사용 할 때와 동등 또는 그 이상의 강도 발현과 유동성을 확보할 수 있도록 한 순환자원을 이용한 무시멘트계 고화재 조성물 및 이를 이용한 시공방법을 제공하는데 그 목적이 있다. 특히, 본 발명은 이러한 무시멘트계 고화재 조성물의 조성비를 토질에 따라 배합설계하여 고함수 유기질 토ㆍ사질토ㆍ마사토 그리고 실트질 점성토 등 대상 토질에 적합하게 배합하여 사용할 수 있도록 한 순환자원을 이용한 고화재 조성물 및 이를 이용한 시공방법을 제공하는데 그 목적이 있다. 이러한 목적을 달성하기 위한 본 발명에 따른 순환자원을 이용한 고화재 조성물은, 포졸란 합성물질 65.0~85.0중량%; 강도촉진 활성화제 10.0~34.9중량%; 및 분산제 0.1~5.0중량%;를 포함하되, 상기 포졸란 합성물질은, 고로슬래그 미분말 45 ~ 65중량%; 석탄화력발전소로부터 생성된 플라이 애시 10 ~ 45중량%; 열발전 발전소의 보일러로부터 생성된 연소재 10 ~ 45중량%; 및 정유시 생성된 제올라이트계 유동 접촉 분해 순환 촉매 0초과 ~ 30중량%;을 포함하는 것을 특징으로 한다. The present invention relates to a cement-based fire-extinguishing system which uses circulating resources (industrial byproducts) generated in the industry and which is equivalent to or higher than that of a cementitious fire extinguisher containing cement, blast furnace slag cement and calcium sulfoaluminate- The present invention provides a non-cementitious fire-resistant composition using cyclic resources and a construction method using the same. In particular, the present invention relates to a cementitious fire-retardant composition comprising a cementitious fire-retardant composition according to the composition of the earth, such as high-function organic soil, sand, silt and silty clays, And a method for constructing the same. In order to accomplish the above object, the present invention provides a fire-retardant composition using cyclic resources, comprising: 65.0 to 85.0% by weight of a pozzolanic compound; 10.0 to 34.9 wt% of the strength promoting activator; And 0.1 to 5.0% by weight of a dispersant, wherein the pozzolanic synthetic material comprises 45 to 65% by weight of fine blast furnace slag powder; 10 to 45 wt% of fly ash produced from coal-fired power plants; 10 to 45% by weight of a burned material produced from a boiler of a thermal power plant; And more than 0 to 30% by weight of the zeolitic flow catalytic ...

A kind of enhancement type waterproof alkali-free liquid accelerator and preparation method thereof

本发明涉及建筑材料技术领域，特别涉及一种防水增强型无碱液体速凝剂及其制备方法。速凝剂包括了改性铝酸盐溶液、稳定剂、pH调节剂、磷酸二氢镁和水；所述改性铝酸盐溶液的制备方法为：将硬脂酸加入到反应釜中，升温至70～80℃,加热至熔融状态，开启搅拌装置，加入氨水进行反应，降温至35～50℃，往反应釜中加入硫酸铝、异丙醇铝和水，进行超声反应，降至常温，再加入氢氧化钙反应，制得改性铝酸盐。该速凝剂用于制备无碱液体速凝剂的合成中，制得的无碱液体速凝剂具有防水功能，能提高混凝土的耐久性，混凝土的回弹率低，能够提高产品的稳定性，对喷射混凝土的早期和后期强度具有明显的提高，在混凝土施工方面具有重要的实际应用价值。

Pre-mixed composition for high performance dry-method shotcrete for reducing rebound and dust generation

The present invention relates to a pre-mixed composition for high-performance dry shotcrete and a construction method using the same, wherein the pre-mixed composition contains 25 to 40 wt% of cement, 8 to 15 wt% of coarse aggregate, 30 to 60 wt% of fine aggregate, 1 to 5 wt% of silica fume, 1 to 5 wt% of anhydrite, 1 to 5 wt% of calcium sulfoaluminate, 1 to 5 wt% of fly ash, 1 to 5 wt% of a high-performance admixture, 0.01 to 1 wt% of a plasticizer, 0.01 to 1 wt% of a thickener, 0.01 to 1 wt% of a defoamer, 0.01 to 1 wt% of a powdered AE water reducer, and 0.01 to 1 wt% of natural fibers. The high-performance admixture used in the present invention contains, with respect to 100 parts by weight of a vinyl acetate monomer, 20 to 50 parts by weight of methyl methacrylate-butyl acrylate, 1 to 10 parts by weight of polyrotaxane, 0.1 to 5 parts by weight of a ketoprofen compound represented by the following chemical formula 1, 0.1 to 5 parts by weight of alginic acid particles, and 0.1 to 5 parts by weight of zinc cyanurate. The present invention is to enhance the performance of coarse aggregate-containing dry shotcrete and achieve improvements in economic feasibility and work environment. The present invention improves basic physical properties and achieves excellent dust reduction at the same time.

Crack-Reducing Type Fast Curing Concrete Composition With Excellent Corrosion Resistance and Abrasion Resistance, And Method For Repairing And Rehabilitating Road Pavement Using The Composition

The present invention relates to a crack-reducing type rapid hardening cement concrete composition comprising: 5-45 wt% of a rapid hardening mixture; 10-70 wt% of fine aggregate; 10-70 wt% of coarse aggregate; 3-30 wt% of a modifying agent; and 2-30 wt% of water. The present invention relates to a crack-reducing type rapid hardening cement concrete composition with excellent corrosion resistance and abrasion resistance, and a road pavement maintenance method using the same. The rapid hardening mixture includes: 5-85 wt% of fine granular Portland cement; 10-60 wt% of magnesium sulfoaluminate; 1-35 wt% of amorphous tricalcium aluminate; 1-30 wt% of a whisker; 1-25 wt% of gypsum; 1-25 wt% of mullite; 0.5-10 wt% of magnesium fluoride; and 0.5-10 wt% of a lithium-sodium silicate mixture based on 100 wt% of the total of the rapid hardening mixture. The present invention can prevent cracking and expansion failure phenomena due to shrinkage, and can greatly improve strength and durability. The present invention is provided to improve corrosion resistance (rust protection) by applying alkalinity to the inside of carbonated concrete, thereby extending a durability life of a road pavement and reducing maintenance costs of the road pavement. The present invention can satisfy various properties such as water tightness, adhesion, durability, and cracking resistance which are required for a concrete road pavement.