No Title

Composite lubricating material, engine oil, grease, and lubricant, and method of producing a composite lubricating material

Provided are a composite lubricating material, engine oil, grease and lubricant, excellent in lubricity. The composite lubricating material comprises at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31A or more: Rate (3R) = P3/ (P3+P4) x100 • • • • Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

Effect of particle size on the hydraulic conductivity of geothermal grout systems

Grout fluids, methods of preparing the grout fluids, and methods of using the grout fluids are provided. The methods of preparing the grout fluids include providing a thermally conductive material in a plurality of particle sizes, formulating a grout fluid including each particle size of the plurality of particle sizes of the thermally conductive material, determining permeability for each formulated grout fluid, identifying a particle size range of the thermally conductive material that provides a permeability of less than 1 x 10-7 cm/s as measured by ASTM procedure D5084, and preparing a grout fluid including the thermally conductive material having the identified particle size range.

Graphite-based carbon material useful as graphene precursor, as well as method of producing the same

A graphite-based carbon material is disclosed which is suitable as a graphene precursor, from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material has rhombohedral graphite layer and a hexagonal graphite layer wherein a Rate, which is defined by Equation 1, is 31% or more: Rate = P3/ (P3+P4) x100 Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer based on the X-ray diffraction method. The graphite-based carbon material can be produced by carrying out radiowave and physical treatment on a natural graphite material.

A composite electrically-conductive material

A composite thermally-conductive material

COMPOSITE CONDUCTIVE MATERIAL, POWER STORAGE DEVICE, CONDUCTIVE DISPERSION, CONDUCTIVE DEVICE, CONDUCTIVE COMPOSITE AND THERMALLY CONDUCTIVE COMPOSITE AND METHOD OF PRODUCING A COMPOSITE CONDUCTIVE MATERIAL

COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE, AND LUBRICANT

COMPOSITE REINFORCING MATERIAL AND MOLDING MATERIAL

COMPOSITE REINFORCING MATERIAL AND MOLDING MATERIAL

COMPOSITE CONDUCTIVE MATERIAL, POWER STORAGE DEVICE, CONDUCTIVE DISPERSION, CONDUCTIVE DEVICE, CONDUCTIVE COMPOSITE AND THERMALLY CONDUCTIVE COMPOSITE AND METHOD OF PRODUCING A COMPOSITE CONDUCTIVE MATERIAL

COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE, AND LUBRICANT

GRAPHITE-TYPE CARBON MATERIAL USED AS GRAPHENE PRECURSOR AND METHOD FOR PRODUCING SAME

GRAPHITE-TYPE CARBON MATERIAL USED AS GRAPHENE PRECURSOR AND METHOD FOR PRODUCING SAME

COMPOSITE REINFORCING MATERIAL AND MOLDING MATERIAL

COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE, AND LUBRICANT

GRAPHITE-TYPE CARBON MATERIAL USED AS GRAPHENE PRECURSOR AND METHOD FOR PRODUCING SAME

COMPOSITE CONDUCTIVE MATERIAL, POWER STORAGE DEVICE, CONDUCTIVE DISPERSION, CONDUCTIVE DEVICE, CONDUCTIVE COMPOSITE AND THERMALLY CONDUCTIVE COMPOSITE AND METHOD OF PRODUCING A COMPOSITE CONDUCTIVE MATERIAL

Composite reinforcing material and molding material

... (10) 0 (43) M EM 2015 * 12 JA 30 H(30.12.2015) W O 2015/198657 Al WIPO I PCT (51) MRMH-F32: (74) It IT A: 1 { Q [%, 3r$ (SHIGENOBU Kazuo et C08L 101/00 (2006.01) C08K 3/04 (2006.01) al.); T 1028578 3S f-T -1tEl 2 #t]-% T 4 1 -F (21) RR95 : PCT/JP2015/058331 )fJ 7'.2 i 1 9[M Tokyo (JP). (22) [PJ89 : 2015 P 3 , 19 8 (19.03.2015) (81) t't (A1,tS LI3R L 5- fi T RI): AE, AG, AL, AM, AO, AT, AU, AZ, BA, (25) [P, t ) : I =|Mt3 BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, (26) [P, 8t. =1 Fl, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, (30) 4fr.tf-"%: IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, PCT/JP2014/073838 2014 P 9 , 9 8(09.09.2014) JP LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, PCT/JP2015/055977 2015 P 2 , 27 8(27.02.2015) JP MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, (71) h RE A: 'Y 5 7 '/ 5 'V h 7 t -i L RE SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, (GRAPHENE ...

METHODS AND SYSTEMS FOR MAKING NANOCARBON PARTICLE ADMIXTURES AND CONCRETE

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.

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.

ELECTRODE COMPOSITION

The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25°C according to DIN EN 1426 of < 50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65°C and/or having a density at 25°C according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of < 500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content.

GRAPHENE REINFORCED CONCRETE

A reinforced concrete material is described comprising a cementitious material (22) in which graphene is substantially uniformly distributed. A method of production of concrete is also described comprising the steps of forming a substantially uniform suspension (20) of graphene with water, and mixing the suspension (20) with a cementitious material (22) to form a concrete material (28).

METHODS AND SYSTEMS FOR MAKING NANOCARBON PARTICLE ADMIXTURES AND CONCRETE

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.

ENGINEERED COMPOSITE STRUCTURE USING GRAPHENE OXIDE

This is generally a method of producing dispersed high quality engineered composite structures using flat flakes of graphene/graphene oxides/reduced graphene oxides in a host as the reinforcing additive of the composite.

Radiation-screening constructional concrete, for protecting persons against environmental electromagnetic fields, comprises binder and electroconductive material, e.g. graphite

Radiation-screening constructional concrete (I) comprises (a) a binder and (b) at least one electricity conducting, electricity diverting or radiation repelling material. Independent claims are included for: (1) constructional articles or construction elements produced from (I); and (2) a method for preparing a construction article or element, involving (i) producing a form; (ii) placing reinforcement in the form; and (iii) filling the form with (I).

CARBON GRAPHITE-BASED MATERIAL, SUITABLE AS PRECURSOR GRAPHENE, AND METHOD OF ITS PREPARING

ГИПСОКАРТОННАЯ ПАНЕЛЬ И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Заявленная гипсокартонная панель содержит гипсовую матрицу и частицы углерода, причем частицами углерода являются, по крайней мере, два разных вида углерода, выбранные из группы, включающей обрезки графитовой пленки, расширенного пенографита, аморфного графита, природного графита. Заявленный способ изготовления гипсокартонной панели включает следующие этапы: изготовление способной затвердевать гипсовой суспензии, содержащей частицы углерода, причем частицами углерода являются, по крайней мере, два различных вида частиц углерода, выбранных из группы, включающей обрезки графитовой пленки, расширенного пенографита, аморфного графита, природного графита; нанесение гипсовой суспензии на картонную ленту; накрытие второй картонной лентой; нарезание картонной ленты после, по крайней мере, частичного отверждения гипсовой суспензии.

ПАНЕЛЬ ГИПСОКАРТОНА И СПОСОБ ИЗГОТОВЛЕНИЯ ПАНЕЛИ ГИПСОКАРТОНА

Панель гипсокартона, имеющая гипсовую матрицу и от 0,1 до 10% массовой доли частиц углерода, причем размер (d50) частиц углерода составляет от 0,5 до 4 мм.

COMPOSITE CONDUCTING MATERIAL, ENERGY STORAGE DEVICE, CONDUCTING DISPERSION, CONDUCTING DEVICE, CONDUCTING COMPOSITE, HEAT-CONDUCTING COMPOSITE AND METHOD OF PRODUCTION OF THE COMPOSITE CONDUCTING MATERIAL

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

COMPOSITE REINFORCING MATERIAL AND METHOD OF PRODUCING COMPOSITE REINFORCING MATERIAL

COMPOSITE REINFORCEMENT MATERIAL AND METHOD FOR PRODUCTION OF THE COMPOSITE REINFORCEMENT MATERIAL

COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE AND LUBRICATING OIL, AND METHOD OF PRODUCING THE COMPOSITE LUBRICATING MATERIAL

COMPOSITE CONDUCTIVE MATERIAL, ELECTRICITY STORAGE DEVICE, CONDUCTIVE DISPERSION, CONDUCTIVE DEVICE, CONDUCTIVE COMPOSITE, THERMALLY CONDUCTIVE COMPOSITE AND METHOD FOR PRODUCING COMPOSITE CONDUCTIVE MATERIAL

GRAPHENE COMPOSITE AND METHOD OF PRODUCING THE SAME

... 전구체로서 사용하였을 때에 그래핀으로 박리하기 쉬운 그래핀 전구체로서 사용할 수 있는 흑연계 탄소 소재를 제공한다. X선 회절법에 의한 다음의 (수학식 1)에 의해 정의되는 비율 Rate(3R)가 31% 이상인 그래핀 전구체로서 사용할 수 있는 흑연계 탄소 소재. Rate(3R)=P3/(P3+P4)×100…(수학식 1) 여기서, P3은 능면정계 흑연층(3R)의 X선 회절법에 의한 (101)면의 피크 강도 P4는 육방정계 흑연층(2H)의 X선 회절법에 의한 (101)면의 피크 강도이다.

BLADE AND METHOD OF COMPÓSITO OF FLEXIBLE GRAPHITE

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

INORGANIC FIRE PROTECTION AND INSULATION FOAM AND USE THEREOF

A hydraulically binding composition can be used to produce an inorganic fire-protection and/or insulation foam. The composition includes: (i) a hydraulic binder, (ii) a blowing-agent mixture, (iii) a thermally expandable compound, and (iv) optionally a foam stabilizer, where the at least one thermally expandable compound, depending on a particle size thereof and an adjusted density of a foamed composition, is present in a quantity such that a foam structure of the foamed composition is not destroyed by expansion thereof during heating of the composition above an onset temperature thereof. 1. A hydraulically binding composition for producing an inorganic fire-protection and/or insulation foam , the composition comprising:(i) at least one hydraulic binder,(ii) a blowing-agent mixture,(iii) at least one thermally expandable compound, and(iv) optionally a foam stabilizer,wherein the at least one thermally expandable compound, depending on a particle size thereof and an adjusted density of a foamed composition, is present in a quantity such that a foam structure of the foamed composition is not destroyed by expansion thereof during heating of the composition above an onset temperature thereof.2. The composition according to claim 1 , wherein:a proportion of thermally expandable compound is between 0.5 and 25 wt % and an adjusted foam density is from 150 g/L to 300 g/L, ora proportion of thermally expandable compound is between 0.4 and 15 wt % and an adjusted foam density is from 300 g/L to 600 g/L, ora proportion of thermally expandable compound is between 0.3 and 10 wt % and an adjusted foam density is from 600 g/L to 800 g/L,in each case relative to the total composition.3. The composition according to claim 1 , wherein the at least one thermally expandable compound is at least one member selected from the group consisting of a graphite intercalation compounds and an expandable silicate material.4. The composition according to claim 3 , wherein the at least one ...

Device Comprising a Cable or a Cable Accessory Containing a Fire-Resistant Composite Layer

The present invention relates to a device comprising a cable and/or a cable accessory, said cable and/or said cable accessory comprising at least one composite layer obtained from a composite composition based on at least one cellulose derivative, at least one organic compound having a boiling point or a decomposition temperature above about 100° C. and at least one cement composition selected from an aluminosilicate geopolymer composition and a magnesium-based composition, as well as to a method of manufacturing such a device.

БЕТОННАЯ СМЕСЬ

Изобретение относится к области производства бетонных изделий для дорожного строительства и может найти применение в бетонах для нижних слоев дорожных оснований, производстве бордюрных изделий, а также для устройства тротуарных покрытий. Бетонная смесь, включающая цемент, мелкие заполнители, жидкий модификатор на основе отхода нефтепродукта и воду, причем цемент взят некондиционный марок М150-М200, в качестве жидкого модификатора введен раствор отработанной графитовой смазки в керосине в соотношении по масс. части 30:70, а в качестве мелкодисперсного заполнителя взята ферромарганцевая колошниковая пыль фракции менее 0,14 мм при соотношении, масс. %: некондиционный цемент M150-М200 20,48-20,7, кварцевый песок (Мкр=2,5) 42,47-42,94, мелкодисперсная ферромарганцевая колошниковая пыль фр.0,14 25,32-25,61, раствор отработанной графитовой смазки в керосине 0,37-1,46, вода 10,27-10,38. Технический результат - повышение прочностных свойств бетонной смеси, а также утилизация отходов металлообрабатывающих ...

ПЛИТА, В ЧАСТНОСТИ ПОКРЫВАЮЩАЯ ПЛИТА ДЛЯ РАСПЛАВЛЕННЫХ МЕТАЛЛОВ, А ТАКЖЕ СПОСОБ ПОЛУЧЕНИЯ ПЛИТЫ И ЕЕ ПРИМЕНЕНИЕ

FIELD: metallurgy.SUBSTANCE: invention relates to heat-insulating plate (1), preferably overlay plate (5a; b), in particular for heat insulation of molten metals, in particular steel melting, in metallurgical vessel (6), to method of plate (1) production and its application. Plate (1) comprises binding matrix (2) from at least one cured temporary organic binder and granular aggregate (3), containing and/or consisting of biogenic silicic acid, preferably with and/or rice hull ash, which is integrated into binding matrix (2).EFFECT: technical result consists in providing good heat insulation, minimum dust load and ease of application.33 cl, 6 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 725 409 C1 (51) МПК B22D 11/111 (2006.01) C04B 35/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B22D 11/111 (2020.02); C04B 35/16 (2020.02) (21)(22) Заявка: 2018145316, 27.06.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 02.07.2020 (73) Патентообладатель(и): РЕФРАТЕХНИК ХОЛДИНГ ГМБХ (DE) (56) Список документов, цитированных в отчете о поиске: DE 9405748 U1, 01.09.1994. GB 2347143 А, 30.08.2000. RU 2308350 C2, 20.10.2007. RU 2366535 C1, 10.09.2009. JPS 57202950 A, 13.12.1982. CN 1594197 A, 16.03.2005. 30.06.2016 DE 10 2016 112 039.1 (45) Опубликовано: 02.07.2020 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.01.2019 (86) Заявка PCT: 2 7 2 5 4 0 9 (87) Публикация заявки PCT: WO 2018/002094 (04.01.2018) Адрес для переписки: 129090, Москва, ул. Большая Спасская, д. 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПЛИТА, В ЧАСТНОСТИ ПОКРЫВАЮЩАЯ ПЛИТА ДЛЯ РАСПЛАВЛЕННЫХ МЕТАЛЛОВ, А ТАКЖЕ СПОСОБ ПОЛУЧЕНИЯ ПЛИТЫ И ЕЕ ПРИМЕНЕНИЕ (57) Реферат: Изобретение относится к теплоизоляционной заполнитель (3), содержащий и/или состоящий из плите (1), предпочтительно накладной плите (5a; биогенной кремниевой кислоты, предпочтительно b), в частности для ...

SYNTHETIC GLASS FIBER PRODUCTS FOR LAGGING AND THEIR PRODUCTION

OUTER BUILDING MATERIAL FOR BUILDINGS

Inorganic fire protection and insulation foam and use thereof

The invention relates to a hydraulically binding composition for producing inorganic fire protection and/or insulation foams, containing at least one hydraulic binder, a propellant mixture, at least one thermally expandable compound and optionally a foam stabiliser, the at least one thermally expandable compound being contained in a quantity dependent on the particle sizes thereof and the adjusted density of the foamed composition, such that the foam structure of the foamed composition is not destroyed by the expansion of the compound(s) during heating of the composition above the onset temperature of said compound(s). The invention also relates to a fire protection or insulation foam produced in this way and to the use thereof.

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.

Graphite-based carbon material useful as graphene precursor, as well as method of producing the same

PCT/JP2015/055977 Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/(P3+P4)xlOO - Equation 1 wherein P3 is apeak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

FIRE RESISTANT GYPSUM BOARD COMPRISING EXPANDABLE GRAPHITE AND RELATED METHODS AND SLURRIES

Disclosed are a gypsum board, and related slurries and methods. The gypsum board comprises a gypsum layer disposed between two cover sheets. The gypsum layer comprises a crystalline matrix of set gypsum and expandable graphite. The expandable graphite exhibits volume expansion at high temperatures. Optionally, unexpanded vermiculite can also be included in the gypsum layer to provide an expansion component at even higher temperatures. Because of synergy between the expandable graphite and unexpanded vermiculite in accordance with some embodiments, less vermiculite can be included in the board than in conventional board that contained vermiculite. The board desirably can pass one or more fire-related tests, and is a fire-rated board in some embodiments.

CEMENT COMPOSITIONS INCLUDING RESILIENT GRAPHITIC CARBON FRACTION

A method for improving the thermal characteristics of cement compositions is provided in which fine resilient graphitic carbon particles ("RGC") are substituted for a portion of the fine aggregate (typically send) in the cement formulation. For the purposes of the present disclosure, "fine" is intended to describe particulates having a mesh size of less than about 8 mesh, or a particle size of less than about 2.38 mm, or, more preferably when referring to RGC, a mesh size of less than about 16 mesh and a particle size of less than about 1.19 mm. "Resilient" is intended to describe graphitic carbon particles that exhibit a rebound of at least about 20% after compression to 10,000 psi.

CARBON GRAPHITE-BASED MATERIAL, SUITABLE AS PRECURSOR GRAPHENE, AND METHOD OF ITS PREPARING

ELECTRODE MASS

MIXTURE BUILDING MATERIALS FOR PROTECTION FROM ELECTROMAGNETIC RADIATION

COMPOSITE LUBRICATING MATERIAL, MACHINE OIL, DOUGH CONTAINS LUBRICANT AND LUBRICATING SUBSTANCE, AS WELL AS METHOD OF PRODUCING COMPOSITE LUBRICATING MATERIAL

GRAPHITE-BASED CARBON MATERIAL USEFUL AS GRAPHENE PRECURSOR AND METHOD FOR PRODUCING SAME

Graphite-type carbon material used as graphene precursor and method for producing same

BINDER COMPOSITE FOR AUTO-CLAVED LIGHTWEIGHT CONCRETE USING FINE POROUS ACTIVATED CARBON AND AUTO-CLAVED LIGHTWEIGHT CONCRETE COMPOSITE

The present invention relates to a binder composite used for manufacturing lightweight aerated concrete and a lightweight aerated concrete composite. Specifically, a fine porous crushed activated carbon particulate material generated as an industrial by-product is included in the composites, so macro pore, meso pore, and micro pore are increased in the aerated concrete due to holes which activated carbon has. Material separation due to use of activated carbon is prevented using blast furnace slag fine powder and a thickener. The binder composite for the lightweight aerated concrete improves stability for the holes in the aerated concrete to prevent the holes from being foam-broken and form uniform fine holes, thereby improving heat insulation properties and sound absorbing properties.

Composite conductive material, power storage device, conductive dispersion, conductive device, conductive composite and thermally conductive composite

Provided is a composite conductive material excellent in conductivity. The composite conductive material comprises at least graphene-like exfoliated from a graphite-based graphite carbon material and a conductive material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H) , wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H) , based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/ (P3+P4) x 100 (Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

Concrete mix for electromagnetic wave/pulse shielding

Conductive concrete mixtures are described that are configured to provide EMP shielding and reflect and/or absorb, for instance, EM waves propagating through the conductive concrete mixture. The conductive concrete mixtures include cement, aggregate, water, metallic conductive material, and conductive carbon particles and/or magnetic material. The conductive material may include steel fibers, and the magnetic material may include taconite aggregate. The conductive concrete mixture may also include graphite powder, silica fume, and/or other supplementary cementitious materials (SCM). The conductive carbon particles may comprise from about zero to twenty-five percent (0-25%) of the conductive concrete mixture by weight and/or the magnetic material may comprise from about zero to fifty percent (0-50%) of the conductive concrete mixture by weight.

COMPOSITE REINFORCING MATERIAL AND MOLDING MATERIAL

A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (R) and a hexagonal graphite layer (H), wherein a Rate (R) of the rhombohedral graphite layer (R) and the hexagonal graphite layer (H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: 2. The composite reinforcing material according to claim 1 , wherein the reinforcing material is a microparticle having a string-like claim 1 , linear claim 1 , or flake-like shape.3. The composite reinforcing material according to claim 2 , wherein the microparticle has an aspect ratio of 5 or more.4. The composite reinforcing material according to claim 1 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10.5. The composite reinforcing material according to claim 2 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10.7. The method of producing the composite reinforcing material according to claim 6 , wherein the reinforcing material is a microparticle having a string-like claim 6 , linear claim 6 , or flake-like shape.8. The method of producing the composite reinforcing material according to claim 7 , wherein the microparticle has an aspect ratio of 5 or more.9. The method of producing the composite reinforcing material according to claim 6 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10.10. The method of producing the composite reinforcing material according to claim 7 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10. This application is a continuation of co-pending U.S. patent ...

Geopolymer concretes for energy storage applications

A geopolymer thermal energy storage (TES) concrete product comprising at least one binder; at least one alkali activator; at least one fine aggregate with high thermal conductivity and heat capacity; and at least one coarse aggregate with high thermal conductivity and heat capacity.

СПОСОБ ИЗГОТОВЛЕНИЯ ПРОВОДЯЩЕГО БЕТОННОГО БЛОКА, СОДЕРЖАЩЕГО ГРАФИТ

Изобретение относится к области формования. Предлагается способ изготовления проводящего бетонного блока, содержащего графит, причем исходные материалы для проводящего бетонного блока, содержащего графит, включают обычный портландцемент, воду, песок, гравий или щебень, графитовые порошки и электроды, в котором исходные материалы равномерно смешивают и заливают в форму. Электроды вставляют в форму, изделие удаляют из формы и выдерживают статически некоторое время. Прессование высокого давления проводят после заполнения формы исходными материалами и после того, как вставлены электроды, вода стекает из исходных материалов. Высокое давление снимают, когда не может вытечь больше воды, и затем изделие вынимают из формы и выдерживают статически некоторое время. Технический результат заключается в простоте способа и повышении конструкционной прочности проводящего бетонного блока. 6 з.п. ф-лы, 3 ил., 1 табл.

Verfahren zum Bilden eines leitfähigen Betonblocks der Graphit enthält

Ein Verfahren zum Bilden eines leitfähigen Betonblocks, der Graphit enthält, auf dem Gebiet des Bildens von Betonprodukten wird offenbart. Das Verfahren verwendet ein nasstypisches Hochdruckpressverfahren, um die strukturelle Festigkeit des leitfähigen Betonblocks, der Graphit enthält, zu verbessern, während eine ausgezeichnete Leitfähigkeit gewährleistet wird. Die Anteile, das Mischen und Befüllen der Rohmaterialien und das Entfernen und statische Anordnen des leitfähigen Betonblocks, der Graphit enthält, sind im Wesentlichen die gleichen wie solche für einen gegenwärtig erhältlichen leitfähigen Betonblock, der Graphit enthält, dadurch gekennzeichnet, dass ein Hochdruckpressen ausgeführt wird, nachdem die Rohmaterialien in die Bildungsform (1) eingefüllt worden sind und nachdem die Elektroden (5) eingebettet worden sind, wobei das Wasser in den Rohmaterialien abgezogen wird, der hohe Druck freigegeben wird, wenn kein Wasser abgezogen werden kann, und das Produkt dann aus der Bildungsform ...

Graphite-based carbon material useful as graphene prescursor, as well as method of producing the same

Composite conductive material, power storage device, conductive dispersion, conductive device, conductive composite and thermally conductive composite and

A composite ionically-conductive material is disclosed which comprises a graphene material exfoliated from a graphite-based carbon material and the graphite-based carbon material, and an ionically-conductive material dispersed in a base material, where the graphite-based carbon material has rhombohedral graphite layer and a hexagonal graphite layer wherein a Rate, which is defined by Equation 1, is 31% or more: Rate = P3/ (P3+P4) x100 Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer based on the X-ray diffraction method. The graphene material is a crystal of mean size of 100nm or more and formed in a flake-like or sheet-like shape having 10 layers or less. The graphite-based carbon material can be produced by carrying out radiowave and physical treatment on a natural graphite material. The composite may be formed by kneading the ...

Composite conductive material,power storage device,conductive dispersion,conductive device,conductive composite and thermally conductive composite and method

FIRE-RESTRAINING, THERMAL AND SOUND-ISOLATING MATERIAL

Man-made vitreous fibre products for use in thermal insulation, and their production

Building material mixture for shielding against electromagnetic radiation

The invention relates to a building material mixture, the dry material having 10 - 98 wt.% carbon and 2 - 70 wt.% binder, characterised in that the building material mixture also comprises 1 - 80 wt.% loose particles, the surface of the loose particles being coated at least partially with an electrically conductive material.

Methods and systems for making nanocarbon particle admixtures and concrete

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.

ADDITIVE COMPOSITION FOR BITUMINOUS CONGLOMERATES WITH HIGH MECHANICAL PERFORMANCES

Additive composition intended to be mixed into bituminous conglomerates for road paving, comprising a thermoplastic polymer, a polymeric compound selected from the group consisting of polyvinylbutyral (PVB), polyethylacrylate (PEA) polymethylacrylate (PMA), polybutylacrilate (PBA), lignin and mixtures thereof, and graphene, preferably wherein the graphene is contained in quantity between 0.005 and 1% by weight based on the total weight of the composition; it is also described a bituminous conglomerate suitable for making a road paving, comprising aggregates, filler, bitumen and said additive.

FLEXIBLE GRAPHITE ARTICLE AND METHOD OF MANUFACTURE

A flexible graphite sheet (100) exhibiting enhanced isotropy is provided. In addition, an apparatus, system and method for continuously producing a resin- impregnated flexible graphite sheet is also provided.

COMPOSITE REINFORCING MATERIAL AND METHOD OF PRODUCING A COMPOSITE REINFORCING MATERIAL

Provided is a composite reinforcement raw material having excellent mechanical strength. A composite reinforcement raw material in which at least a reinforcement raw material and a graphenoid separated from a graphite-based carbon raw material are dispersed in a base material, the composite conduction raw material characterized in that the graphite-based carbon raw material has a rhombohedral-crystal graphite layer (3R) and a hexagonal-crystal graphite layer (2H), and the ratio Rate (3R) defined by (Equation 1) by X-ray diffraction analysis of the rhombohedral-crystal graphite layer (3R) and the hexagonal-crystal graphite layer (2H) is 31% or higher. (Equation 1): Rate (3r) = P3/(P3 + P4) x 100. Here, P3 is the peak intensity of the (101) face in X-ray diffraction analysis of the rhombohedral-crystal graphite layer (3R), and P4 is the peak intensity of the (101) face in X-ray diffraction analysis of the hexagonal-crystal graphite layer (2H).

GRAPHENE COMPOSITE AND METHOD OF PRODUCING THE SAME

A graphene composite having at least a graphene is partially exfoliated from the graphite-based carbon material and dispersed in a base material, the graphite-based carbon material having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by Rate (3R) = P3/(P3+P4) × 100, is 31% or more, wherein: P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method,the graphene being a crystal of a mean size of 100nm or more and formed in a flake-like or sheet-like shape having 10 layers or less.

ENVIRONMENT-FRIENDLY PLASTERING ADDITIVE HAVING ANTIMICROBIAL AND DEODORIZING FUNCTIONS AND PLASTERING CEMENT AND MORTAR USING SAME

The present invention relates to an environment-friendly plastering additive having antimicrobial and deodorizing functions and plastering cement and mortar using the same. The environment-friendly plastering additive having the antimicrobial and deodorizing functions according to the present invention includes sericite, activated carbon, red clay, white clay, plaster, photocatalyst, pyrethroid-based insecticide powder, zeolite, and gelrite. The sericite is turned into powder after heat treatment within a range of 1,200 to 1,300 degrees Celsius. The photocatalyst is formed as mixed powder in which titanium dioxide (TiO_2), silicon dioxide (SiO_2), and nanosilver powder are mixed. Bifenthrin is used as the pyrethroid-based insecticide powder. According to the present invention, the environment-friendly natural mineral material having the antimicrobial and deodorizing functions is turned into fine powder and used as the plastering additive, and thus it can be used as an interior and exterior ...

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

GYPSUM PLASTER BOARD AND A METHOD FOR PRODUCING A GYPSUM PLASTER BOARD

Gypsum plaster board, containing a gypsum matrix and 0.1 to 10% by weight carbon particles, wherein the particle size (d50) of the carbon particles ranges from 0.5 to 4 mm.

FLEXIBLE GRAPHITE CAPACITOR ELEMENT

Fluid permeable graphite article in the form of a glassy carbon coated perforated flexible graphite sheet useful as an electrode and electrically conductive backing material in flow-through type electrical capacitors.

Methods for Preparation of Graphene Nanoribbons From Carbon Nanotubes and Compositions, Thin Films and Devices Derived Therefrom

Methods for producing macroscopic quantities of oxidized graphene nanoribbons are disclosed herein. The methods include providing a plurality of carbon nanotubes and reacting the plurality of carbon nanotubes with at least one oxidant to form oxidized graphene nanoribbons. The at least one oxidant is operable to longitudinally open the carbon nanotubes. In some embodiments, the reacting step takes place in the presence of at least one acid. In some embodiments, the reacting step takes place in the presence of at least one protective agent. Various embodiments of the present disclosure also include methods for producing reduced graphene nanoribbons by reacting oxidized graphene nanoribbons with at least one reducing agent. Oxidized graphene nanoribbons, reduced graphene nanoribbons and compositions and articles derived therefrom are also disclosed herein.

FLEXIBLE GRAPHITE COMPOSITE SHEET AND METHOD

Composite conductive material, power storage device, conductive dispersion, conductive device, conductive composite and thermally conductive composite

A composite thermally-conductive material is disclosed which comprises a graphene material exfoliated from a graphite-based carbon material and the graphite-based carbon material, and a thermally-conductive material dispersed in a base material, where the graphite-based carbon material has rhombohedral graphite layer and a hexagonal graphite layer wherein a Rate, which is defined by Equation 1, is 31% or more: Rate = P3/ (P3+P4) x100 Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer based on the X-ray diffraction method. The graphene material is a crystal of mean size of 100nm or more and formed in a flake-like or sheet-like shape having 10 layers or less. The graphite-based carbon material can be produced by carrying out radiowave and physical treatment on a natural graphite material. The composite may be formed by kneading the graphite-based ...

Geopolymer concretes for energy storage applications

A geopolymer thermal energy storage (TES) concrete product comprising at least one binder; at least one alkali activator; at least one fine aggregate with high thermal conductivity and heat capacity; and at least one coarse aggregate with high thermal conductivity and heat capacity.

FLEXIBLE GRAPHITIC SANDWICH FOIL AND MANUFACTURING PROCESS

Heat generating compositions

A composition capable of forming a heat generating layer on a building element is disclosed. The composition comprises a base material and an electrically conductive filler, wherein the composition is capable of forming a heat generating layer after it has been applied to a surface of the building element. The composition may be a construction adhesive or jointing composition, a gel coat composition or a bedding or self-levelling composition.

FLEXIBLE GRAPHITE ARTICLE AND METHOD OF MANUFACTURE

A flexible graphite sheet exhibiting enhanced isotropy with respect to thermal and electrical conductivity and fluid diffusion is provided. In addition, an apparatus, system and method for continuously producing a resin-impregnated flexible graphite sheet is also provided. The sheet is useful as a substitute natural graphite sheet.

UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

INORGANIC FIRE PROTECTION AND INSULATION FOAM AND USE THEREOF

The invention relates to a hydraulically binding composition for producing inorganic fire protection and/or insulation foams, containing at least one hydraulic binder, a propellant mixture, at least one thermally expandable compound and optionally a foam stabiliser, the at least one thermally expandable compound being contained in a quantity dependent on the particle sizes thereof and the adjusted density of the foamed composition, such that the foam structure of the foamed composition is not destroyed by the expansion of the compound(s) during heating of the composition above the onset temperature of said compound(s). The invention also relates to a fire protection or insulation foam produced in this way and to the use thereof.

COMPOSITE CONDUCTIVE MATERIAL, POWER STORAGE DEVICE, CONDUCTIVE DISPERSION, CONDUCTIVE DEVICE, CONDUCTIVE COMPOSITE AND THERMALLY CONDUCTIVE COMPOSITE AND METHOD OF PRODUCING A COMPOSITE CONDUCTIVE MATERIAL

Provided is a composite conductive material excellent in conductivity. The composite conductive material comprises at least graphene-like exfoliated from a graphite-based graphite carbon material and a conductive material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H) , wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H) , based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/ (P3+P4) ×100 .multidot. (Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

Graphite base heatproof and heat insulating material and production technique thereof

The invention discloses a graphite-based temperature-resistant thermal insulation material and a production technology thereof. The material comprises the following components: 15-30wt percent of graphite powder, 18-28wt percent of sepiolite, 8-15wt percent of inorganic foaming agent, 5-20wt percent of inorganic adhesive, 6.4-32wt percent of high-quality cement, and other auxiliary agents as the rest; and the insulation material is obtained by stirring and mixing, molding, and curing. The invention also provides the production technology of the graphite-based temperature-resistant thermal insulation material, one is that after stirring, mixing and molding, the raw materials are naturally dried or dried and cured by using a drying oven; and the other is that after stirring, mixing and molding, the raw materials are sintered and cured. The invention has easily obtained raw materials with low price, simple production technology, convenient operation, good high-temperature resistant and thermal ...

MAN-MADE VITREOUS FIBRE PRODUCTS FOR USE IN THERMAL INSULATION, AND THEIR PRODUCTION

L'invention concerne des produits d'isolation thermique constitués d'une matière de fibres vitreuses air-laid comprenant du graphite distribué de façon homogène. Ces produits constitués d'une matière de fibres vitreuses peuvent se présenter sous forme granulée. De préférence, ces produits comprennent une couche qui se présente sous la forme d'un matelas isolant air-laid à base de fibres vitreuses comprenant du graphite distribué de façon homogène. L'ajout de graphite améliore les propriétés d'isolation (valeur 'lambda').

Flexible graphite article and method of manufacture

A flexible graphite sheet exhibiting enhanced isotropy is provided. In addition, an apparatus, system and method for continuously producing a resin-impregnated flexible graphite sheet is also provided.

HEAT GENERATING COMPOSITIONS

A composition configured to form a heat generating layer on a building element is disclosed. The composition includes a base material and an electrically conductive filler, wherein the composition is configured to form a heat generating layer after it has been applied to a surface of the building element. The composition may be a construction adhesive or jointing composition, a gel coat composition or a bedding or self-levelling composition.

СПОСОБ ИЗГОТОВЛЕНИЯ ПРОВОДЯЩЕГО БЕТОННОГО БЛОКА, СОДЕРЖАЩЕГО ГРАФИТ

... 1. Способ изготовления проводящего бетонного блока, содержащего графит, причем исходные материалы для проводящего бетонного блока, содержащего графит, включают обычный портландцемент, воду, песок, гравий или щебень, графитовые порошки и электроды, в котором исходные материалы равномерно смешивают и заливают в форму, электроды вставляют в форму, изделие удаляют из формы и выдерживают статически некоторое время, отличающийся тем, что прессование высокого давления проводят после заполнения формы (1) исходными материалами и после того, как вставлены электроды (5), вода стекает из исходных материалов, высокое давление снимают, когда не может вытечь больше воды, и затем изделие вынимают из формы и выдерживают статически некоторое время. 2. Способ по п.1, отличающийся тем, что используют форму (1), содержащую нижнюю стенку с водопроницаемой структурой, причем водопроницаемая нижняя стенка (3) включает множество распределенных равномерно дренажных отверстий (8) диаметром 2-10 мм, ситовое устройство ...

Composite conductive material, power storage device, conductive dispersion, conductive device, conductive composite and thermally conductive composite

HEAT GENERATING COMPOSITIONS

A composition capable of forming a heat generating layer on a building element is disclosed. The composition comprises a base material and an electrically conductive filler, wherein the composition is capable of forming a heat generating layer after it has been applied to a surface of the building element. The composition may be a construction adhesive or jointing composition, a gel coat composition or a bedding or self-levelling composition.

CONSTRUCTION MATERIAL MIXTURE FOR SHIELDING AGAINST ELECTROMAGNETIC RADIATION

The invention relates to a building material mixture, the dry material having 10 - 98 wt.% carbon and 2 - 70 wt.% binder, characterised in that the building material mixture also comprises 1 - 80 wt.% loose particles, the surface of the loose particles being coated at least partially with an electrically conductive material.

ELECTRODE COMPOSITION

The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25°C according to DIN EN 1426 of < 50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65°C and/or having a density at 25°C according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of < 500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content.

CEMENT COMPOSITIONS INCLUDING RESILIENT GRAPHITIC CARBON FRACTION

A method for improving the thermal characteristics of cement compositions is provided in which fine resilient graphitic carbon particles ("RGC") are substituted for a portion of the fine aggregate (typically send) in the cement formulation. For the purposes of the present disclosure, "fine" is intended to describe particulates having a mesh size of less than about 8 mesh, or a particle size of less than about 2.38 mm, or, more preferably when referring to RGC, a mesh size of less than about 16 mesh and a particle size of less than about 1.19 mm. "Resilient" is intended to describe graphitic carbon particles that exhibit a rebound of at least about 20% after compression to 10,000 psi.

COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE, AND LUBRICANT, AND METHOD OF PRODUCING A COMPOSITE LUBRICATING MATERIAL

Provided are a composite lubricating material , engine oil, grease and lubricant, excellent in lubricity. The composite lubricating material comprises at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/(P3+P4) ×100 .multidot. Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and 24 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

THERMALLY CONDUCTIVE LIGHTWEIGHT CEMENT CONTAINING GRAPHENE, METHOD FOR MANUFACTURING LIGHTWEIGHT CEMENT, AND METHOD FOR MANUFACTURING CEMENT BLOCK USING LIGHTWEIGHT CEMENT

The present invention relates to lightweight cement and a method for manufacturing the lightweight cement. More particularly, the present invention is intended to solve the various problems, in constructing the cement used in the production of a cement block, and relates to high-strength lightweight cement containing graphene, a method for manufacturing the lightweight cement, and a method for manufacturing the cement block using the lightweight cement, in which aggregates are not used to reduce the weight of the cement, and brings improvement in weight reduction and strength enhancement in the manufacture of blocks, and especially in surface strength with the addition of strength-improving substances in place of the aggregates. COPYRIGHT KIPO 2017 (S10) Material preparation process (S20) Mixing process (S21) Second mixing process (S30) Firing step (S40) Cooling process (S50) Pulverizing process ...

Flexible graphite article and method of manufacture

A flexible graphite sheet exhibiting enhanced isotropy is provided. In addition, an apparatus, system and method for continuously producing a resin-impregnated flexible graphite sheet is also provided.

Exhaust Gas Treatment Device

A mounting mat for an exhaust gas treatment device includes a blend of inorganic fibers and organic nanofibrillated fibers. An exhaust gas treatment device includes a housing and a fragile structure mounted within the housing by the mounting mat that is disposed in a gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making a mounting mat for an exhaust gas treatment device and for making an exhaust gas treatment device incorporating the mounting mat.

Highly concentrated nano-reinforcement suspensions for cementitious materials and method of reinforcing such materials

Highly concentrated carbon nanotube or other nano-reinforcement suspensions and/or masses are prepared for use as admixtures in cement base materials to make cementitious composite materials.

Uniform Dispersing of Graphene Nanoparticles in a Host

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

Compositions, systems, and neural networks for bidirectional energy transfer, and thermally enhanced solar absorbers

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

GEOPOLYMER CONCRETES FOR ENERGY STORAGE APPLICATIONS

A geopolymer thermal energy storage (TES) concrete product comprising at least one binder; at least one alkali activator; at least one fine aggregate with high thermal conductivity and heat capacity; and at least one coarse aggregate with high thermal conductivity and heat capacity. 1. A geopolymer thermal energy storage (TES) concrete product comprising:at least one binder;at least one alkali activator;at least one fine aggregate; andat least one coarse aggregate;wherein the TES concrete product has a high thermal conductivity and heat capacity.2. The product of claim 1 , wherein the at least one binder is selected from the group consisting of: low-Ca class F fly ash claim 1 , metakaolin claim 1 , blast furnace slag claim 1 , Class C fly ash claim 1 , and vitreous calcium aluminosilicate.3. The product of claim 1 , wherein the at least one binder comprises 10 to 35 wt. % of the concrete mix for TES.4. The product of claim 1 , wherein the at least one binder is low-Ca class fly ash with CaO less or equal to 15 wt. %.5. The product of claim 1 , wherein the at least one binder comprises low-Ca class fly ash and metakaolin.6. The product of claim 1 , wherein the at least one binder is metakaolin.7. The product of claim 1 , wherein the at least one binder comprises blast furnace slag and metakaolin.8. The product of claim 1 , wherein the at least one alkali activator comprises metal hydroxide claim 1 , metal silicate and water claim 1 , wherein the metal is potassium claim 1 , sodium or combinations of both.9. The product of claim 8 , wherein the metal hydroxide comprises 1 to 8 wt. % as MO (M=Na claim 8 , K or both) of the TES concrete product claim 8 , wherein the metal silicate comprises 2 to 16 wt. % as SiOof the TES concrete product claim 8 , and wherein the alkali activator comprises water at 4 to 20 wt. % of the TES concrete product.10. The product of claim 8 , wherein the at least one alkali activator has a w/b of 0.25 to 0.60 claim 8 , a molar SiO/MO ratio of 0 ...

CONSTRUCTION MATERIAL MIXTURE FOR SHIELDING AGAINST ELECTROMAGNETIC RADIATION

A construction material mixture contains a dry mass of 10 to 98 wt. % carbon and 2 to 70 wt. % binding agent. The construction material mixture further comprises 1 to 80 wt. % loose particles, wherein the surface of the loose particles is at least partially coated with an electrically conductive material. 114-. (canceled)15: A construction material mixture , comprising: 10 to 95 wt. % carbon, and', '2 to 70 wt. % binding agent,', '1 to 80 wt. % of loose particles,', 'wherein the wt. % is based on the weight of the dry mass,, 'a dry mass, comprising the following components'}wherein a total weight of components in the construction material mixture adds up to 100 wt. %,wherein the surfaces of the loose particles are at least partially coated with an electrically conductive material, and wherein a coated part of the surfaces of the loose particles is advantageously on average between 50 and 90%.16: The construction material mixture according to claim 15 , wherein the loose particles comprise a glass or a ceramic material.17: The construction material mixture according to claim 15 , wherein the loose particles comprise spheres.18: The construction material mixture according to claim 15 , wherein the size of the loose particles is in a range between 0.01 mm and 10 mm.19: The construction material mixture according to claim 15 , wherein the carbon of the dry mass comprises graphite.20: The construction material mixture according to claim 15 , wherein the electrically conductive material is at least one material selected from the group consisting of magnetite claim 15 , graphite claim 15 , and graphene.21: The construction material mixture according to claim 19 , wherein the graphite is present as at least one form selected from the group consisting of a graphite powder claim 19 , expanded graphite flakes claim 19 , film graphite claim 19 , natural graphite claim 19 , and synthetic graphite.22: The construction material mixture according to claim 15 , wherein the binding ...

Engineered Composite Structure Using Graphene Oxide

This is generally a method of producing dispersed high quality engineered composite structures using flat flakes of graphene/graphene oxides/reduced graphene oxides in a host as the reinforcing additive of the composite.

3d printable cementitious ink including electromagnetic pulse resistant binders

An electromagnetic interference (EMI) resistant cementitious ink comprising a hydraulic cement, calcium carbonate, silica sand, taconite material, and a conductive material. A ratio of the silica sand to the taconite material is 1:1. In some embodiments, the taconite material includes taconite powder and fine taconite aggregate having a ratio of 1:1. In some embodiments, the conductive material includes carbon-based nanoparticles in solution. In further embodiments, the EMI-resistant cementitious ink has a shielding effectiveness in accordance with ASTM D4935-18 of at least 4.0 dB.

EFFECT OF PARTICLE SIZE ON THE HYDRAULIC CONDUCTIVITY OF GEOTHERMAL GROUT SYSTEMS

Grout fluids, methods of preparing the grout fluids, and methods of using the grout fluids are provided. The methods of preparing the grout fluids include providing a thermally conductive material in a plurality of particle sizes, formulating a grout fluid including each particle size of the plurality of particle sizes of the thermally conductive material, determining permeability for each formulated grout fluid, identifying a particle size range of the thermally conductive material that provides a permeability of less than 1×10cm/s as measured by ASTM procedure D5084, and preparing a grout fluid including the thermally conductive material having the identified particle size range. 1. A method of preparing a grout fluid comprising:providing a thermally conductive material in a plurality of particle sizes;formulating the grout fluid to include each particle size of the plurality of particle sizes of the thermally conductive material;determining permeability for each formulated grout fluid;{'sup': '−7', 'identifying a particle size range of the thermally conductive material that has a permeability of less than 1×10cm/s as measured by ASTM procedure D5084; and'}preparing a grout fluid comprising the thermally conductive material having the identified particle size range.2. The method of claim 1 , wherein the thermally conductive material comprises a carbon-based material.3. The method of claim 2 , wherein the carbon-based material comprises graphite.4. The method of claim 1 , further comprising:blending two or more particle sizes of the plurality of particle sizes of the thermally conductive material;formulating a grout fluid including a blend of the two or more particle sizes; anddetermining permeability of the grout fluid including the blend of the two or more particle sizes.5. A grout fluid prepared according to the method of .6. The grout fluid of claim 5 , further comprising bentonite.7. The grout fluid of claim 6 , wherein the bentonite comprises sodium bentonite ...

Graphite Oxide Reinforced Fiber in Hosts such as Concrete or Asphalt

This can be a method of making a high strength composite reinforcing fiber using flat GO flakes coated on a conventional reinforcing fiber. This maintains some the flexibility of the fiber and aligns the flat graphene flakes along the surface of the fiber; this dramatically increases the strength of the fiber. It also allows bonding between overlapping flakes, in contrast to flakes being uniformly dispersed in a host material that is being reinforced and dramatically increases the strength of the host material.

ADDITION FOR PRODUCING THERMALLY CONDUCTIVE MORTARS AND STRUCTURAL CONCRETE

The invention relates to an addition for producing thermally conductive mortars and structural concrete, said addition being a specific powdery formulation in each case, which, when added as an addition to a conventional concrete or mortar, allows the production of a structural concrete or mortar with improved thermal characteristics (thermal conductivity λ). If the addition is added to a conventional concrete in a plant, a structural concrete with increased thermal conductivities is produced, which can adapt to the thermal requirements of the building, thereby being highly suitable for the heat activation of structures or the geothermal activation of foundations. The concrete containing the addition takes on special rheological characteristics which, inter alia, allows a self-compacting concrete to be produced. If the addition is added to a conventional mortar in a mixer, a mortar is produced with very high thermal conductivities which make it highly suitable for geothermal probes. 1. An additive for thermally conductive structural concretes and conductive mortars , characterized in that it contains between three and six components depending on its application , selected from the following components:Fine aggregate (calcareous or siliceous) with a grain size of less than 4 mm, in a proportion comprised between 0% and 95% of total weight.Fine aggregates (calcareous or siliceous) with a grain size of less than 0.064 mm, in a proportion comprised between 0% and 95% of total weight.Polycarboxylate ether superplasticizer type powder additive or derivatives thereof in a proportion comprised between 0% and 15% of total weight.Cellulose ether or biopolymer type viscosity modulator or derivatives thereof in a proportion comprised between 0% and 10% of total weight.Natural or synthetic graphite with high thermal conductivity in a proportion comprised between 0% to 45% of total weight.Graphene and/or carbon nanotubes (nanomaterials) to obtain the high thermal conductivity ...

FIRE RESISTANT GYPSUM BOARD COMPRISING EXPANDABLE GRAPHITE AND RELATED METHODS AND SLURRIES

Disclosed are a gypsum board, and related slurries and methods. The gypsum board comprises a gypsum layer disposed between two cover sheets. The gypsum layer comprises a crystalline matrix of set gypsum and expandable graphite. The expandable graphite exhibits volume expansion at high temperatures. Optionally, unexpanded vermiculite can also be included in the gypsum layer to provide an expansion component at even higher temperatures. Because of synergy between the expandable graphite and unexpanded vermiculite in accordance with some embodiments, less vermiculite can be included in the board than in conventional board that contained vermiculite. The board desirably can pass one or more fire-related tests, and is a fire-rated board in some embodiments. 1. A gypsum board comprising a gypsum layer disposed between two cover sheets , the gypsum layer comprising a crystalline matrix of set gypsum and expandable graphite wherein the gypsum board has a High Temperature Shrinkage (S) of about 10% or less in the z direction when heated to about 1560° F. (850° C.) , according to ASTM C1795-15.2. The gypsum board of claim 1 , wherein the gypsum layer is further formed from an unexpanded vermiculite.3. The gypsum board of claim 2 , wherein the unexpanded vermiculite is present in an amount of from about 0% to about 20% by weight of the stucco.4. The gypsum board of claim 2 , wherein the weight ratio of expandable graphite to unexpanded vermiculite is from about 10:90 to about 70:30.5. The gypsum board of claim 1 , wherein the expandable graphite is present in an amount of from about 0.1% to about 10% by weight of the stucco.6. The gypsum board of claim 1 , wherein the expandable graphite has an expansion onset temperature of from about 250° F. (120° C.) to about 750° F. (400° C.).7. The gypsum board of claim 1 , wherein the expandable graphite has a particle size of from about 5 mesh to about 400 mesh.8. The gypsum board of claim 1 , wherein the expandable graphite has a ...

GRAPHENE REINFORCED CONCRETE

A reinforced concrete material is described comprising a cementitious material () in which graphene is substantially uniformly distributed. A method of production of concrete is also described comprising the steps of forming a substantially uniform suspension () of graphene with water, and mixing the suspension () with a cementitious material () to form a concrete material (). 1. A reinforced concrete material comprising a cementitious material in which graphene is substantially uniformly distributed.2. A material according to claim 1 , wherein the graphene is in the form of flakes.3. A material according to claim 2 , wherein the flakes are of lateral dimensions of less than 5 μm.4. A material according to claim 3 , wherein the flakes are of lateral dimensions in the range of 1-3 μm.5. A material according to claim 4 , wherein the flakes are of lateral dimensions in the range of 1.5-2.5 μm.6. A material according to claim 5 , wherein the flakes have a lateral dimension in the region of 2 μm.7. A material according to claim 1 , wherein the graphene is dispersed or suspended within water prior to the formation of the concrete material.8. A material according to claim 7 , wherein the concentration of graphene within the water is in the range of 0.2-2.5 g/L.9. A material according to claim 8 , wherein the concentration of graphene within the water is in the range of 0.3-1.5 g/L.10. A material according to claim 9 , wherein the concentration of graphene within the water is in the range of 0.6-0.8 g/L.11. A material according to claim 10 , wherein the concentration of graphene within the water is in the region of 0.7 g/L.12. A material according to claim 1 , further comprising at least one of a plasticizer or superplasticizers claim 1 , a water reducing agent claim 1 , an early age strength improvement agent claim 1 , a retarding admixture and a corrosion inhibiting material.13. A material according to claim 1 , wherein the cementitious material comprises at least one of ...

COMPOSITIONS, SYSTEMS, AND NEURAL NETWORKS FOR BIDIRECTIONAL ENERGY TRANSFER, AND THERMALLY ENHANCED SOLAR ABSORBERS

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example. 1. A thermal energy-transfer system comprising:a thermally conductive concrete, in cured form and in the form of a structural object, wherein said thermally conductive concrete is characterized by a compressive strength greater than 2500 psi, and wherein said thermally conductive concrete comprises (i) carbon, (ii) one or more metals and/or conductive polymers, (iii) aggregate, and (iv) cement, wherein said carbon is present in said composition at a concentration from greater than 5 vol % to about 35 vol % on a dry basis;a location of energy supply or demand that is physically isolated from, but in thermodynamic communication with, said thermally conductive concrete; andone or more pipes, tubes, capillaries, manifolding, or other containment regions, wherein said one or more pipes, tubes, capillaries, manifolding, or other containment regions contain a thermal energy-transfer medium for transferring thermal energy between said structural ...

COMPOSITIONS, SYSTEMS, AND NEURAL NETWORKS FOR BIDIRECTIONAL ENERGY TRANSFER, AND THERMALLY ENHANCED SOLAR ABSORBERS

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example. 1. A thermally conductive concrete composition , said composition comprising carbon , one or more metals and/or conductive polymers , aggregate , cement , and optionally water , wherein said carbon is present in said composition at a concentration from about 5 vol % to about 35 vol % on a dry basis , and wherein said one or more metals and/or conductive polymers are present in said composition at a concentration from about 0.5 vol % to about 10 vol % on a dry basis.2. The thermally conductive concrete composition of claim 1 , wherein said carbon is present in said composition at a concentration from about 10 vol % to about 25 vol % on a dry basis.3. The thermally conductive concrete composition of claim 1 , wherein said one or more metals and/or conductive polymers are present in said composition at a concentration from about 1 vol % to about 5 vol % on a dry basis.4. The thermally conductive concrete composition of claim 1 , wherein said ...

COMPOSITIONS, SYSTEMS, AND NEURAL NETWORKS FOR BIDIRECTIONAL ENERGY TRANSFER, AND THERMALLY ENHANCED SOLAR ABSORBERS

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example. 1. A bidirectional electrical energy-transfer system comprising:an electrically conductive concrete, in cured form and disposed in a structural object;a location of electrical energy supply or demand, wherein said location of electrical energy supply or demand is physically isolated from, but in electrical communication with, said electrically conductive concrete;a means of transferring electrical energy between said structural object and said location of electrical energy supply or demand.2. The bidirectional electrical energy-transfer system of claim 1 , wherein said system is present as a single node in a network comprising a plurality of network nodes.3. The bidirectional electrical energy-transfer system of claim 1 , wherein said system is present as a single node in a network comprising a plurality of antennas claim 1 , electrical receivers claim 1 , and emitters.4. The bidirectional electrical energy-transfer system of claim 1 , ...

COMPOSITE REINFORCING MATERIAL AND METHOD OF PRODUCING A COMPOSITE REINFORCING MATERIAL

A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: 17-. (canceled)9. The method of producing the composite reinforcing material according to claim 8 , wherein the reinforcing material is a microparticle having a string-like claim 8 , linear claim 8 , or flake-like shape.10. The method of producing the composite reinforcing material according to claim 9 , wherein the microparticle has an aspect ratio of 5 or more.11. The method of producing the composite reinforcing material according to claim 8 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10.12. The method of producing the composite reinforcing material according to claim 9 , wherein a weight ratio of the graphite-based carbon material to the reinforcing material is 1/100 or more and less than 10.13. The method of producing the composite reinforcing material according to claim 8 , wherein the base material is a polymer.14. The method of producing the composite reinforcing material according to claim 13 , wherein a compatibilizer is added.15. The method of producing the composite reinforcing material according to claim 8 , wherein the base material is an inorganic material. The present invention relates to a composite reinforcing material and a method of producing a composite reinforcing material.In recent years, addition of various nanomaterials has been studied for purposes of downsizing and weight saving in various fields. In particular, for environmental or resource problems, carbon materials ...

Device Comprising a Cable or a Cable Accessory Containing a Fire-Resistant Composite Layer

The present invention relates to a device comprising a cable and/or a cable accessory, said cable and/or said cable accessory comprising at least one composite layer obtained from a composite composition based on at least one cellulose derivative, at least one organic compound having a boiling point or a decomposition temperature above about 100° C. and at least one cement composition selected from an aluminosilicate geopolymer composition and a magnesium-based composition, as well as to a method of manufacturing such a device. 1. Device comprising a power cable and/or a telecommunication cable , and/or an accessory for a power cable and/or a telecommunication cable , wherein said cable and/or said cable accessory comprise at least one composite layer obtained from a composite composition comprising at least one organic compound having a boiling point or a decomposition temperature above 100° C. , at least one cellulose derivative , and at least one cement composition selected from an aluminosilicate geopolymer composition and a magnesium-based composition comprising a magnesium silicate , an alkaline silicate , water , and an alkaline base.2. Device according to claim 1 , wherein the cement composition comprises water claim 1 , silicon (Si) claim 1 , aluminium (Al) or magnesium (Mg) claim 1 , oxygen (0) claim 1 , and at least one element selected from potassium (K) claim 1 , sodium (Na) claim 1 , lithium (Li) claim 1 , caesium (Cs) claim 1 , and calcium (Ca).3. Device according to claim 1 , wherein the aluminosilicate geopolymer composition comprises an alkaline silicate claim 1 , an aluminosilicate claim 1 , water claim 1 , and optionally an alkaline base.4. Device according to claim 1 , wherein the aluminosilicate geopolymer composition comprises from 10 to 50 wt % of an aluminosilicate claim 1 , from 8 to 35 wt % of an alkaline silicate claim 1 , from 0 to 10 wt % of an alkaline base and from 10 to 55 wt % of water.5. Device according to claim 1 , wherein the ...

METHOD FOR PRODUCING A MOLDING FROM A DRY MIXTURE COMPRISING GRAPHITE PARTICLES AND MOLDING THUS PRODUCED

Lightweight molding produced from a dry mixture including graphite particles and a binder for setting of the dry mixture by water, alkali and/or aqueous salt solution, where the proportion by mass of the graphite particles in the dry mixture is more than 0.05, the binder includes magnesia binder, cement, caustic calcined magnesite, lime and/or clay powder, the density of the lightweight molding is in the range from 0.1 g/cmto 3.5 g/cmand the lightweight molding has a thermal conductivity of at least 0.5 W/mK. 1. A lightweight molding produced from a dry mixture comprising graphite particles and a binder for setting of the dry mixture by at least one of water , alkali and aqueous salt solution , wherein a proportion by mass of the graphite particles in the dry mixture is more than 0.05 , the binder comprising at least one of magnesia binder , cement , caustic calcined magnesite , lime and clay powder , wherein a density of the lightweight molding is in a range from 0.1 g/cmto 3.5 g/cm , the lightweight molding having a thermal conductivity of at least 0.5 W/mK.2. The lightweight molding as claimed in claim 1 , wherein the graphite particles are at least one of grain-shaped and fiber-shaped.3. The lightweight molding as claimed in claim 1 , wherein the graphite particles have a particle size in the range from 0.1 μm to 100 mm.4. The lightweight molding as claimed in claim 1 , wherein the graphite particles are produced from at least one of natural graphite claim 1 , synthetic graphite claim 1 , expanded graphite flocs claim 1 , milled graphite flocs claim 1 , milled graphite foils claim 1 , milled natural graphite and milled synthetic graphite.5. The lightweight molding as claimed in claim 1 , wherein the graphite particles are produced from coke claim 1 , carbon blacks and activated carbon.6. The lightweight molding as claimed in claim 1 , wherein at least one thermal additive for at least one of increasing the thermal conductivity and for increasing the heat storage ...

Electrode Composition

The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25° C. according to DIN EN 1426 of <50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65° C. and/or having a density at 25° C. according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of <500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content. 1. A self-calcining electrode composition for electric arc furnaces , comprising one or more carbon components and a binder ,{'sup': '3', 'wherein the binder contains exclusively hard bitumen with a needle penetration of <50 per 0.1 mm at 25° C. according to DIN EN 1426, and/or a softening point, ring and ball, of at least 65° C. according to DIN EN 1427 and/or with a density of 0.5 to 2 g/cmat 25° C. according to DIN EN 52004, and'}wherein the electrode composition has a polyaromatic hydrocarbon (PAC) content of <500 ppm.2. The self-calcining electrode composition according to claim 1 , wherein the hard bitumen is obtained by flash distillation of soft and medium-hard bitumen varieties.3. The self-calcining electrode composition according to claim 1 , wherein the hard bitumen has a high sulfur content of preferably 5-7% and is obtained from crude oil containing a large amount of organically bound sulfur.4. The self-calcining electrode composition according to claim 1 , wherein the electrode composition has a PAC content less than or equal to 10 ppm.5. The self-calcining electrode composition according to claim 1 , wherein the electrode composition has a PAC content less than or equal to 5 ppm.6. The self-calcining electrode composition according to claim 1 , wherein the electrode composition has a PAC content of less than or equal to 1 ppm.7. ...

FRICTION MATERIALS WITH LOW STORAGE TIME FOR BRAKE PADS BASED ON BINDER COMPOSITIONS AND RELATED BRAKE PADS

A friction material with reduced storage time is described, comprising a binder composition based on a hydraulic binder and its use in brake pads and industrial applications. 1. A friction material for brake pads comprising:i) a multicomponent brake-pad compound; and a) a hydraulic binder consisting of common cement clinker, composed of at least two thirds by mass of calcium silicates [3CaO.SiO2] and [2CaO.SiO2], the remaining part consisting of Al2O3, Fe2O3 and/or other minor oxides;', 'b) an activator selected from one or more salts and/or hydroxides and/or oxides of alkaline and/or alkaline earth metals and/or silicon;', 'c) one or more materials having a pozzolanic activity, one or more materials having a latent hydraulic activity and/or mixtures thereof,, 'ii) a binder composition or matrix based on a hydraulic binder, comprisingsaid binder composition or matrix being hardened by means of hydration reaction with water, characterized in thatthe hydraulic binder a) has a fineness, measured according to the standard UNI EN 196-6:2010, air permeability method (Blaine), ranging from 10,000 to 13,000 cm2/g, andcomponent c) has a fineness, measured according to the standard UNI EN 196-6:2010, air permeability method (Blaine), ranging from 6,000 to 9,000 cm2/g.2. The friction material according to claim 1 , wherein the hydraulic binder a) is type I Portland cement clinker claim 1 , type III blast furnace cement claim 1 , type IV pozzolanic cement and mixtures thereof.3. The friction material according to claim 1 , wherein component b) of the binder composition ii) is selected from silicon oxide claim 1 , potassium oxide claim 1 , sodium oxide claim 1 , potassium hydroxide claim 1 , sodium hydroxide and/or silicates.4. The friction material according to claim 1 , wherein component c) of the binder composition ii) is selected from one or more materials having a pozzolanic activity and/or one or more materials having a latent hydraulic activity.5. The friction material ...

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 ...

GROUT MATERIAL FOR HEAT TRANSFER

A grout material for heat transfer according to the present invention comprises a sand particle; and an outer layer coated on the surface of individual sand particle, wherein the outer layer is composed of a mixture of graphite powder and a hydraulic inorganic binder. 1. A grout material for heat transfer comprising:a sand particle; andan outer layer coated on the surface of an individual sand particle,wherein the outer layer is composed of a mixture of graphite powder and a hydraulic inorganic binder.2. The grout material for heat transfer according to claim 1 , wherein the hydraulic inorganic binder is selected from the group consisting of cement claim 1 , gypsum claim 1 , and sodium silicate.3. The grout material for heat transfer according to claim 2 , wherein the hydraulic inorganic binder is cement.4. The grout material for heat transfer according to claim 2 , wherein the cement is an alumina-based rapid setting cement.5. The grout material for heat transfer according to claim 1 , wherein the graphite powder in the outer layer is 0.1 to 10 wt. % based on the weight of the sand particle.6. The grout material for heat transfer according to claim 1 , wherein the hydraulic inorganic binder in the outer layer is 1 to 10 wt. % based on the weight of the sand particle.7. A method for producing the grout material for heat transfer according to comprising the steps of:mixing graphite powder and a hydraulic inorganic binder;coating the mixture of graphite powder and the hydraulic inorganic binder on the outer surface of the sand particles while stirring the sand particles by spraying water;curing the hydraulic inorganic binder the sand particles on which the mixture of graphite powder and the hydraulic inorganic binder is coated; anddrying the sand particles on which the mixture of graphite powder and the hydraulic inorganic binder is coated.8. A method of grouting process comprising the steps of:mixing water and bentonite powder and forming bentonite slurry;{'claim-ref ...

LIGHTWEIGHT CONDUCTIVE MORTAR MATERIAL, PREPARATION METHOD THEREFOR AND METHOD OF USING THEREOF

Disclosed are a lightweight conductive mortar material, a preparation method therefor and use thereof. The lightweight conductive mortar material includes the following components in parts by weight: 100 parts of cement, 25 parts to 60 parts of a conductive porous lightweight aggregate loaded with a modified agar gel, and 30 parts to 45 parts of water. 1. A lightweight conductive mortar material , the lightweight conductive mortar material comprises the following components in parts by weight: 100 parts of cement , 25 to 60 parts of a conductive porous lightweight aggregate loaded with a modified agar gel , and 30 to 45 parts of water.2. The lightweight conductive mortar material according to claim 1 , wherein the cement is ordinary Portland cement or composite Portland cement with a strength grade of 42.5 or more.3. The lightweight conductive mortar material according to claim 1 , wherein the conductive porous lightweight aggregate loaded with the modified agar gel is prepared through the following method:(1) adding agar powder into water and heating until the agar powder is completely dissolved, adding inorganic electrolytes, keeping that a temperature of the solution is above 90° C. and continuously stirring the solution for more than 30 seconds, and supplementing boiling water with a corresponding mass lost by evaporation to prepare a modified agar aqueous solution; and then adding graphite powder into the modified agar aqueous solution, and forcibly stirring at a rotating speed of 60 r/min or more to evenly disperse the graphite powder into the modified agar aqueous solution; and(2) immersing porous ceramsites into the modified agar aqueous solution dispersed with the graphite powder, keeping the temperature above 80° C. and continuously stirring for more than 2 minutes, taking out the porous ceramsites, cooling the agar on surfaces of the porous ceramsites by air to solidify into gel, and peeling off excess agar gel to obtain the conductive porous lightweight ...

PLATE, IN PARTICULAR COVERING PLATE FOR MOLTEN METAL, AND METHOD FOR PRODUCING THE PLATE AND USE THEREOF

A heat insulating plate (), preferably a covering plate (), especially for thermal isolation of molten metal, especially of molten steel, in a metallurgical vessel (), wherein the plate () includes a binding agent matrix () of at least one, set, temporary, organic binding material and aggregate grains () with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains () are incorporated into the binding agent matrix (), and to a method for production of the plate () and its use. 1. (canceled)2111. The heat insulating plate () according to claim 29 , characterized in that the plate () is configured such that the temporary binding material burns out under temperature load and the plate () disintegrates into a loose claim 29 , free-flowing bulk material.311. The heat insulating plate () according to claim 5 , characterized in that the plate () disintegrates from a temperature of ≥150° C. and ≤800° C. claim 5 , preferably ≥200° C. and ≤400° C.4. (canceled)5156a;b. A heat insulating plate () claim 5 , preferably a covering plate () claim 5 , especially for thermal isolation of molten metal claim 5 , especially of molten steel claim 5 , in a metallurgical vessel () claim 5 ,{'b': 1', '2', '3', '3', '2', '1', '1, 'wherein the plate () comprises a binding agent matrix () of at least one set binding material and aggregate grains () with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains () are incorporated into the binding agent matrix (), characterized in that as additional aggregate material, the plate () comprises at least one expanding agent which expands under temperature load, preferably such that the plate () disintegrates into a loose, free-flowing bulk material.'}61. The heat insulating plate () according to claim 29 , characterized in that the expansion temperature of the expanding agent lies in the range of the ignition temperature of the temporary binding material.71. The heat insulating plate () ...

Beneficiation of Inorganic Matrices with Wet, Non-Agglomerated, High-Concentration and Stable Graphite Nanoplatelets without Any Extra Measures to Disperse the Nanoplatelets

The present invention relates generally to beneficiation of inorganic matrices via addition of nano-materials without altering the production conditions of the inorganic matrix, and more specifically it relates to enhancement of concrete with wet graphite nanoplatelets using conventional concrete production equipment and procedures without any need for extra measures such as sonication, use of surfactants or functionalization of nanomaterials for dispersion of nanoplatelets. 1. A method of producing a fresh cementitious material with dispersed graphite nanoplatelets , the method comprising:(a) Adding graphite nanoplatelets with 0.3 to 300 nanometer thickness and 3 to 300 micrometer planar dimensions to a mixer in wet, non-agglomerated state with 50 to 95% by weight of water molecules which occur in physically adsorbed state on the surfaces of said nanoplatelets, and hinder their agglomeration via secondary bonding;(b) Adding to said mixer water and hydraulic cement with a total volume that is 50 to times the solid volume of said graphite nanoplatelets, and with water-to-cement weight ratio of 0.1 to 0.9; and(c) Mixing of water, hydraulic cement and graphite nanoplatelets at 3 to 300 rounds per minute rotational speed for 1 to 45 minutes.2. The method of claim 1 , wherein the mixer is one of planetary mixer claim 1 , drum mixer claim 1 , pan mixer claim 1 , vertical axis mixer claim 1 , and twin shaft mixer that is stationary or mixed on a vehicle claim 1 , or a manual mixing method.3. The method of claim 1 , wherein the hydraulic cement is Portland cement claim 1 , Portland-limestone cement claim 1 , Portland-slag cement claim 1 , Portland-pozzolan cement claim 1 , ternary blended cement claim 1 , general use cement claim 1 , high early strength cement claim 1 , moderate sulfate resistance cement claim 1 , high sulfate resistance cement claim 1 , moderate heat of hydration cement claim 1 , low heat of hydration cement claim 1 , masonry cement claim 1 , calcium ...

Methods And Systems For Making Nanocarbon Particle Admixtures And Concrete

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture. 1. A method for making an admixture for concrete comprising:providing a nanocarbon mixture as a carbon powder comprising at least two different types of nanocarbon particles selected from the group consisting of carbon nanotube particles, carbon nanofiber particles, graphene particles, graphite particles, carbon black, “amorphous” paracrystalline or polycrystalline carbon particles, nanodiamonds, and single-layer or multi-layer fullerene particles, with each type of nanocarbon particle having a predetermined mass percentage range in the admixture; andwetting and mixing the carbon powder in a mixture comprised of water and a surfactant configured to de-agglomerate and uniformly disperse the nanocarbon particles in the water/surfactant mixture.2. The method of further comprising blending the nanocarbon mixture with a nano-silica based compound claim 1 , either before or after the wetting and mixing step.3. The method of further comprising blending the nanocarbon mixture with an organic compound including a functional group that contains ...

Pozzolan Polymer Modified Portland Cement Bound Graphite Composition of Matter

A composition of matter for use as an electrode in batteries, fuel cells and other applications, that may or may not be primarily composed of graphite, Portland Cement, pozzolans and water. Organic polymers, additives, reinforcements, fillers, catalysts, current collectors, and other materials may be included in vast ranges and proportions. Large graphite electrodes and other useful products are fabricated integrating concrete with chemical and electrical sciences. Batteries, fuel cells, thermal energy systems, conductive paints, fireproof coatings, metal casting forms, crucibles, fire bricks, graphite electrodes for electroplating, electric arc furnaces, and other applications may make use of the composition. For example, an air battery cathode composed of 50 grams white portland cement, 7 grams metakaolin pozzolan, and 700 grams of properly mixed graphite particle sizes. Dry components mixed with a water based liquid component start the cementing reactions. Mixing, forming and curing play important roles in the final composition properties.

DISPLAY

A reinforced concrete material is described comprising a cementitious material () in which graphene is substantially uniformly distributed. A method of production of concrete is also described comprising the steps of forming a substantially uniform suspension () of graphene with water, and mixing the suspension () with a cementitious material () to form a concrete material (). 1. A reinforced concrete material comprising a cementitious material in which graphene is substantially uniformly distributed.2. A material according to claim 1 , wherein the graphene is in the form of flakes.3. A material according to claim 2 , wherein the flakes are of lateral dimensions of less than 5 μm.4. A material according to claim 3 , wherein the flakes are of lateral dimensions in the range of 1-3 μm.5. A material according to claim 4 , wherein the flakes are of lateral dimensions in the range of 1.5-2.5 μm.6. A material according to claim 5 , wherein the flakes have a lateral dimension in the region of 2 μm.7. A material according to claim 1 , wherein the graphene is dispersed or suspended within water prior to the formation of the concrete material.8. A material according to claim 7 , wherein the concentration of graphene within the water is in the range of 0.2-2.5 g/L.9. A material according to claim 8 , wherein the concentration of graphene within the water is in the range of 0.3-1.5 g/L.10. A material according to claim 9 , wherein the concentration of graphene within the water is in the range of 0.6-0.8 g/L.11. A material according to claim 10 , wherein the concentration of graphene within the water is in the region of 0.7 g/L.12. A material according to claim 1 , further comprising at least one of a plasticiser or superplasticiser claim 1 , a water reducing agent claim 1 , an early age strength improvement agent claim 1 , a retarding admixture and a corrosion inhibiting material.13. A material according to claim 1 , wherein the cementitious material comprises at least one of ...

THERMALLY-CONDUCTIVE, LOW STRENGTH BACKFILL MATERIAL

A low strength backfill material having a 28 days compressive strength less than approximately 2.0 MPa is provided. The backfill is suitable for use in areas with dense underground utilities due to its high excavatability and good thermal conductivity. The backfill includes a cementitious binder of approximately 1 weight percent to approximately 10 weight percent and fine aggregates in an amount of approximately 40 to approximately 75 weight percent. Filler is provided at 20 microns to approximately 100 microns for high flowability. A density-controlling agent of 0.0001-5 weight percent is used such that the density of a cured backfill material is approximately 1600 kg/mto 2000 kg/m. Thermally conductive particles having a size range of approximately 0.01 microns to 500 microns in an amount of approximately 0.1 to 10 weight percent are evenly dispersed throughout the backfill. 2. The backfill of claim 1 , wherein the cementitious binder is one or more of ordinary Portland cement (OPC) claim 1 , calcium sulfoaluminate cement (CSA) claim 1 , alumina cement (AC) claim 1 , or alkali activated material.3. The backfill of claim 1 , wherein the fine aggregates are selected from one or more of natural sand claim 1 , manufactured sand claim 1 , quartz sand claim 1 , gravel claim 1 , recycled glass claim 1 , or recycled concrete aggregate.4. The backfill of claim 1 , wherein the filler is selected from one or more of limestone claim 1 , lime claim 1 , fly ash claim 1 , bottom ash claim 1 , ground-granulated blast-furnace slag claim 1 , mica claim 1 , sewage sludge claim 1 , or gypsum.5. The backfill of claim 1 , wherein the density controlling agent is selected from one or more of a foaming agent claim 1 , air entraining agent claim 1 , or in-situ foaming agent.6. The backfill of claim 1 , wherein the thermally conductive particles are selected from one or more of flake graphite claim 1 , carbon black claim 1 , carbon fiber claim 1 , carbon nanotubes claim 1 , graphene claim ...

Foam concrete composition, foam concrete and method for preparing the foam concrete

본 발명의 한 구체예에 따른 발포 콘크리트 조성물은 시멘트 250 내지 450 중량부; 물 80 내지 170 중량부; 및 단백질 발포제 0.5 내지 1 중량부를 함유한 단백질 폼(foam) 20 내지 80 중량부를 포함하고, 폼(foam) 형태를 가지며, 밀도가 0.5~2.0 Kg/m³ 인 것을 특징으로 한다. 상기 발포 콘크리트 조성물로부터 형성된 발포 콘크리트는 초경량 및 단열효과가 우수하고, 탁월한 흡음, 충격흡수 및 내진 효과를 갖는다. Foamed concrete composition according to an embodiment of the present invention is 250 to 450 parts by weight of cement; 80 to 170 parts by weight of water; And 20 to 80 parts by weight of protein foam (foam) containing 0.5 to 1 parts by weight of protein blowing agent, has a foam (foam), characterized in that the density is 0.5 ~ 2.0 Kg / m³. Foamed concrete formed from the foamed concrete composition is excellent in ultra-lightweight and heat insulation effect, has excellent sound absorption, shock absorption and seismic effect.

Method of producing granular construction material

FIELD: construction. SUBSTANCE: invention relates to production of construction materials, in particular, to production of artificial porous aggregates for concrete and granular heat-insulating materials for charging of heat insulation, as well as to production of semi-finished product for production of granulated construction material. Method of producing granular construction material, which involves preparation of a silica component, preparation of a binding solution, mixing of components, granulating mixture and heat treatment, binder solution is prepared based on colloidal silica and soluble salts of alkali metals by combined wet grinding with simultaneous dissolution of sodium silicate with silica modulus of 1.0 to 4.0, sodium carbonate and/or other water-soluble compounds of alkali metals at temperature 80–110 °C, at following ratio of basic components: vitreous sodium silicate – 10–50 %, sodium carbonate – 5–40 %, water – 40–80 %, wherein mixing silica component with a binding solution is combined with addition of gas-forming agent and granulation of mixture, wherein mixing and granulation are carried out in one device – granulator with ratio of binding solution and silica component from 1:5 to 1:1.2, then raw granules are subjected to thermal treatment: drying to moisture content 1–15 % and annealing at 750–1,100 °C, wherein total content of alkaline oxides in finished material ranges from 5 to 20 wt%. Invention is developed in subclaims. EFFECT: improved operational characteristics of material, particularly low packed density and volumetric water absorption. 6 cl, 10 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 605 982 C2 (51) МПК C04B 20/04 (2006.01) C04B 20/06 (2006.01) C04B 28/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014123150, 09.06.2014 (24) Дата начала отсчета срока действия патента: 09.06.2014 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 09. ...

Mortar composition for cross section ristirations and method for recovering the same thereof

The present invention relates to a mortar composition for preventing salt damage and freezing and thawing and a repair method for a road gutter by salt damage and an end surface of a concrete structure suffering from neutralization and chemical damage using the same. An objective of the present invention is to provide a mortar composition for preventing salt damage and freezing and thawing and a repair method for a road gutter by salt damage and an end surface of a concrete structure suffering from neutralization and chemical damage using the same which can remove a degraded portion of concrete damaged by salt and freezing and thawing. The mortar composition for preventing salt damage and freezing and thawing and the repair method for a road gutter by salt damage and an end surface of a concrete structure suffering from neutralization and chemical damage using the same to remove a degradation portion of a concrete structure caused by salt damage and freezing and thawing, install attaching reinforcement hardware, and then apply a mortar composition for preventing salt damage and freezing and thawing. The mortar composition comprises 20-45 wt% of a cement component, 3-15 wt% of a rapid hardener, 5-20 wt% of an admixture, 25-55 wt% of silica filler, 1-5 wt% of latex, 0.01-0.3 wt% of a carbon nanotube mixed solution, 0.5-4 wt% of a polymer resin, 0.2-2 wt% of a superplasticizer, 0.01-0.8 wt% of amorphous steel fiber, 0.1-3 wt% of a water repellent, 0.2-2 wt% of a property enhancer, and 0.005-1 wt% of graphene oxide.

Cold asphalt concrete mixture and road paving method using the same

According to an embodiment of the present invention, provided is a cold asphalt concrete mixture comprising 60-93 wt% of aggregate, 1-6 wt% of a filler, 3.0-10 wt% of cationic emulsified asphalt, and 0.1-10 wt% of an emulsion-based additive. The cationic emulsified asphalt comprises 40-65 parts by weight of asphalt, 0.1-3.0 parts by weight of an emulsifier, 0.1-2.0 parts by weight of calcium chloride, 0.01-1.0 parts by weight of hydrochloric acid, 45-60 parts by weight of water, and 0.1-3.0 parts by weight of a mixture of an acrylic polymer and polyvinylacetate (PVAc). The emulsion-based additive comprises one selected from the group consisting of carbon black, an acrylic polymer, PVAc, and a mixture of two or more thereof. Occurrence of carbon dioxide and harmful gas is controlled through cold construction, and fuel costs are reduced, so economical feasibility is improved and service life of a paved road may be enhanced.

Composition for construction materials manufacturing and the method of its production

Disclosed is a system or method for efficiently manufacturing construction materials using carbon nanomaterials. In one or more embodiments, the method comprises creating a blend of carbon nanomaterials, wherein the blend of the carbon nanomaterials includes at least one of a carbon nanofiber, a carbon nanotube, a graphite nanoparticle and an amorphous carbon. The method also includes dispersing the carbon nanomaterials and adding a plasticizer and a sand to the dispersed mixture within 3 minutes. The method also includes adding at least one of water and a cement binding agent to the dispersed mixture after the plasticizer and the sand have been added.

Wellbore fluids comprising mineral particles and methods relating thereto

Mineral particles may provide for wellbore fluids with tailorable properties and capabilities. In some instances, a dry wellbore additive may comprise a plurality of first mineral particles having a specific gravity of about 2.6 to about 20; a plurality of second mineral particles having a specific gravity of about 5.5 to about 20; a plurality of lubricant particles having a specific gravity of about 2.6 to about 20; wherein the first mineral particles, the second mineral particles, and the lubricant particles are different; and wherein the first mineral particles, the second mineral particles, and the lubricant particles have a multiparticle specific gravity of about 3 to about 20.

Paving material for municipal construction and building engineering and design method thereof

本发明提供了一种市政施工、建筑工程用铺路材料及其设计方法，所述铺路施工材料由沥青结合料和骨料组成；所述沥青结合料由以下原料制成：道路石油沥青80‑120份，乳化剂1‑4份，聚氨酯改性环氧树脂15‑25份，海泡石1‑10份，石墨烯粉3‑10份，抗紫外老化剂0.1‑0.5份，去离子水15‑30份；本发明铺路材料由于添加了聚氨酯改性环氧树脂、石墨烯粉、海泡石以及抗紫外老化剂进行改性，具有了防车辙、抗温变、耐老化、耐候性等优异的性能，能广泛应用于不同环境下市政、建筑的路面施工。

Waterproof and waterproof methods for a bridge or concrete constructions using the same

본 발명은 방수체 및 이를 이용한 교량 또는 콘크리트 구조물의 방수 공법에 관한 것으로서, 보다 상세하게는 본 발명의 방수체는 실리콘계, 아크릴계, 고무계, 또는 핫멜트계 점착제를 포함하는 제1층 및 아크릴계 폴리머, 미립 점토 광물, 우드 펠릿, 탄산칼슘(CaCO 3 ), 및 이산화티탄(TiO 2 )으로 이루어진 군에서 선택되는 적어도 하나 이상의 초미립 필러, 나노 탄소재, 음이온계 또는 비이온계 분산제, 및 에틸셀룰로스, 폴리아크릴레이트, 실리콘계 소포제, 이소티아졸린 유도체로 이루어진 군에서 선택되는 적어도 하나 이상의 특성 개선제를 포함하는 방수제가 교반되어 가열 후 경화된 제2층을 포함할 수 있으며, 교량 또는 콘크리트 구조물의 방수 보수에 사용될 수 있다. 특히 상기 나노탄소재는 다중벽 탄소나노튜브, 다발형 탄소나노튜브, 탄소나노플레이트, 판상형 그라파이트, 그래핀, 그래핀옥사이드로 이루어진 군에서 선택되는 적어도 하나 이상이고, 상기 다중벽 탄소나노튜브와 상기 판상형 그라파이트가 2:1의 비율로 포함될 수 있다.

一种氧化石墨烯改性地聚物再生混凝土及其制备方法

本发明属于建筑材料领域，提供了一种抗硫酸溶蚀的氧化石墨烯改性地聚物再生混凝土及其制备方法。所述的氧化石墨烯改性地聚物再生混凝土由以下质量份数的原料制备而成：粉煤灰250～280份、再生粗骨料360～380份、天然河砂220～240份、碱激发剂170～210份、氧化石墨烯0.027～0.14份、蒸馏水10～46份；所述碱激发剂包括NaOH溶液和Na 2 SiO 3 溶液。本发明的氧化石墨烯改性地聚物再生混凝土具有良好的力学性能，同时具备优良的抗硫酸侵蚀性能，作为城市污水设施中的混凝土构筑物，使其服役寿命大大增加，更加接近混凝土设计使用年限，减少维修及维护成本。

Section recovery composites for concrete constructions, and section recovery method of the concrete construction for preventing neutralization and corrosision caused by salts and chemicals using the same

The present invention relates to a cross-section recovery material composition for a concrete structure to increase life of the concrete structure, and to a cross-section recovery method for a concrete structure damaged by neutralization, salt, and chemical corrosion using the same. More specifically, the cross-section recovery material composition comprises: 30 to 40 wt% of general cement or slag cement; 30 to 58 wt% of silica sand; 5 to 10 wt% of an expansion material; 1 to 10 wt% of a nanometal material; 5 to 20 wt% of an admixture; 0.1 to 1.5 wt% of a reinforcing material; 0.2 to 1.5 wt% of a fluidizing agent; 0.01 to 3 wt% of at least one nanocarbon material selected from a group consisting of a multiwall carbon nanotube, a bundled carbon nanotube, a carbon nanoplate, planar graphite, graphene, and graphene oxide; and 0.5 to 3 wt% of a negative ionic or nonionic dispersant. Moreover, the method comprises: a step of removing foreign substances and deteriorated parts from a concrete structure; a step of washing the foreign substances of the concrete structure with high-pressure washing water; a step of applying a surface reinforcement material to the concrete structure; a step of applying the cross-section recovery material composition to a surface reinforcement application site; a step of applying a surface protection material thereon; and a step of uniformly applying a ceramic coating material after applying the surface protection material.

For shielding the building material mixture of electromagnetic radiation

本发明涉及一种建筑材料混合物，其干质量含有10‑98wt％碳和2‑70wt％粘合剂，其特征在于，该建筑材料混合物还含有1‑80wt％松散颗粒，其中松散颗粒的表面至少部分涂覆有导电材料。

Organic matter/expandable graphite composite phase change heat-storing building material and preparation method thereof

本发明公开了一种有机物/膨胀石墨复合相变储热建筑材料及其制备方法，所述方法包括如下步骤：(1)使酸性石墨在微波作用下的膨化，形成具有丰富微孔结构的膨胀石墨；(2)将有机物相变材料与膨胀石墨在高于其相变温度条件下进行共混吸附，有机物相变材料被吸附到膨胀石墨的微孔结构中；(3)有机物/膨胀石墨复合相变储热建筑材料的制备：①储热纤维石膏板的制备；②储热水泥的制备。本发明从根本上解决有机物相变材料与建筑材料相容性及稳定性问题。本发明提供的方法所制得的有机物/膨胀石墨复合相变储热建筑材料成本低、储热密度大、导热性能好、不存在可燃性问题。

Well cementation cement slurry and preparation method thereof

本发明提供了一种水泥浆。包括以下重量份计的原料：水泥100份、增强材料5～50份、热量调节剂5～50份、稳定剂10～80份、水5～150份、密度调节剂30～150份、调凝剂0.1～5份、分散剂0.1～10份、降失水剂0.1～10份、消泡剂0.1～10份。本发明还提供了一种上述固井水泥浆的制备方法。该水泥浆体系廉价易得，易于与常用添加剂调配，可充分利用现有固井设备；高温下水泥环强度衰减较小，提高了其耐高温强度。同时，水泥环具有较好的导热性能，能将高温热量传导至地层，避免了井身承受高温的影响，提高了钻孔的稳定性；还具有较好的膨胀性能和热应力补偿性能，保证水泥与套管、水泥与地层之间胶结良好，提高了固井质量。

Semi-incombustible cement base materials

본 발명은 준불연 시멘트계 바탕바름재에 관한 것으로, 보다 상세하게는 난연 EPS(expanded polystyrene)를 준불연 EPS로 업그레이드시킴으로써 고가의 준불연재를 별도로 시공하지 않고도 동등 수준의 불연성을 제공하는 저렴한 준불연 EPS로 대체할 수 있도록 개선된 준불연 시멘트계 바탕바름재에 관한 것이다.

Composite reinforcing material and molding material

本发明提供机械强度优异的复合增强原材料。一种复合传导原材料，其特征在于，其在母材中至少分散有自石墨系碳原材料剥离得到的类石墨烯和增强原材料，前述石墨系碳原材料具有菱方晶系石墨层(3R)和六方晶系石墨层(2H)，前述菱方晶系石墨层(3R)与前述六方晶系石墨层(2H)的由X射线衍射法得到的由以下(式1)定义的比例Rate(3R)为31％以上。Rate(3R)＝P3/(P3+P4)×100…(式1)式1中，P3为菱方晶系石墨层(3R)的由X射线衍射法得到的(101)面的峰强度，P4为六方晶系石墨层(2H)的由X射线衍射法得到的(101)面的峰强度。

Heat insulating panel, particularly a cover panel for molten metals, and method for producing the panel and use of same

Conductive Heated Concrete Using Cement

본 발명은 전기전도시 발열효율이 우수하고 고온에서 콘크리트의 물리적 성질이 변화하지 않는 안정성이 있으며, 또한 장기간 동안 가열과 냉각의 반복과정에서도 내구성이 뛰어나고 지속적으로 발열성이 유지될 수 있는 전기전도성 발열 콘크리트를 제공함을 목적으로 한다. 상기와 같은 목적을 달성하기 위하여 본 발명의 전기전도성 발열 콘크리트는 광물접합 물질, 전기전도성 물질, 첨가물질, 보조물질로 구성되며, 특히 광물접합물질로 시멘트를 사용한다.

Composite reinforcing material and method of producing a composite reinforcing material

기계적 강도가 우수한 복합 강화 소재를 제공한다. 모재에 적어도 흑연계 탄소 소재로부터 박리된 그래핀형과 강화 소재가 분산된 복합 강화 소재로서, 상기 흑연계 탄소 소재는, 능면정계 흑연층(3R)과 육방정계 흑연층(2H)을 갖고, 상기 능면정계 흑연층(3R)과 상기 육방정계 흑연층(2H)의 X선 회절법에 의한 다음의 (수학식 1)에 의해 정의되는 비율 Rate(3R)가 31% 이상인 것을 특징으로 하는 복합 전도 소재. Rate(3R)=P3/(P3+P4)×100…(수학식 1) 여기서, P3은 능면정계 흑연층(3R)의 X선 회절법에 의한 (101)면의 피크 강도 P4는 육방정계 흑연층(2H)의 X선 회절법에 의한 (101)면의 피크 강도이다. Thereby providing a composite reinforcing material excellent in mechanical strength. As a composite reinforcing material in which a graphene type and a reinforcing material are dispersed at least from a graphite carbon material, Wherein said graphite carbon material has a surface smoothness graphite layer (3R) and a hexagonal graphite layer (2H), and is characterized in that said smooth surface graphite layer (3R) and said hexagonal graphite layer Wherein a ratio Rate (3R) defined by the following formula (1) is 31% or more. Rate (3R) = P3 / (P3 + P4) x100 ... (1) here, P3 is the peak intensity of the (101) face of the surface-most graphite layer 3R by the X-ray diffraction method P4 is the peak intensity of the (101) plane of the hexagonal graphite layer (2H) by the X-ray diffraction method.

Remitar composition for manufacturing exothermic concrete and Method of exothermic concrete using the remitar composition

본 발명은 시멘트를 포함하는 결합재, 분말형 탄소나노튜브, 흑연, 폴리카르본산계 감수제를 포함되는 것을 특징으로 하는 발열콘크리트용 레미탈 조성물에 관한 것이다. The present invention relates to a remittal composition for exothermic concrete comprising a binder including cement, powdered carbon nanotubes, graphite, and a polycarboxylic acid-based water reducing agent.

Polymer modified high-performance quick-hardening cement concrete composite and overlay pavement method for concrete using the composite

본 발명은 폴리머 개질 고성능 초속경 시멘트 콘크리트 조성물 및 이를 이용한 콘크리트 덧씌우기 포장공법에 관한 것으로, 더욱 상세하게는 속경성 시멘트계 결합재 5 내지 35 중량%, 잔골재 20 내지 65 중량%, 굵은골재 20 내지 65 중량%, 물 0.1 내지 15 중량% 및 폴리머계 혼화제 0.01 내지 15 중량%를 포함하며, 상기 속경성 시멘트계 결합재는 조강 포틀랜드 시멘트 100 중량부, 비정질 칼슘알루미네이트 90 내지 110 중량부, 알루미나 시멘트 1 내지 20 중량부, 석고 0.1 내지 10 중량부, 고로슬래그 0.1 내지 10 중량부, 칼슘 실리케이트 0.1 내지 10 중량부, 몰데나이트 0.1 내지 10 중량부, 알루미나 코팅 그라파이트 0.01 내지 5 중량부, 황화코발트 0.01 내지 5 중량부 및 탄산마그네슘 0.01 내지 5 중량부를 포함하고, 상기 폴리머계 혼화제는 스티렌 100 중량부, 메틸메타크릴레이트 55 내지 100 중량부, 에틸아크릴레이트 45 내지 65 중량부, 이타코닉산 1 내지 20 중량부, 부타디엔 1 내지 20 중량부, 폴리에틸렌글리콜 모노메타크릴레이트 0.1 내지 10 중량부, 폴리비닐아민 0.1 내지 10 중량부, 비스말레이미드 수지 0.01 내지 5 중량부 및 알긴산 입자 0.01 내지 5 중량부를 포함하여; 도로의 노면, 교량 교면 포장, 긴급한 보수공사 등에 유용하게 사용될 수 있도록, 향상된 작업성과, 내염해성 및 동결융해저항성을 매우 개선하여 콘크리트의 하자를 줄이고, 공용기간을 연장시킬 수 있는 폴리머 개질 고성능 초속경 시멘트 콘크리트 조성물 및 이를 이용한 콘크리트 덧씌우기 포장공법에 관한 것이다.

extensive grout material

The present invention relates to an expandable grout material having excellent rapid hardening properties and compression strength, which comprises 127 to 156 parts by weight of an accelerating agent, 10 to 13 parts by weight of polycarboxylic acid-based dispersant, 28 to 35 parts by weight of the silica fume, 57 to 70 parts by weight of calcium sulfo-aluminate, 5.7 to 7.0 parts by weight of lithium carbonate (Li_2CO_3), 3.5 to 4.5 parts by weight of an expandable graphite, 2.5 to 3.5 parts by weight of acrylic fiber, and 2.5 to 3.5 parts by weight of low-density polyethylene (LDPE), with respect to 100 parts by weight of microcement.

Method of forming a flexible graphite composite sheet

Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties.

Flexible graphite composite sheet and method

Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties.

Flexible graphite composite sheet and method

Flexible graphite sheet is made by compressing a mixture of fine particle of intercalated, exfoliated, expanded natural graphite with fine particles of intercalated, unexpanded, expandable particles of natural graphite, the unexpanded particles being more finely sized than the expanded particles. The resulting sheet of flexible graphite exhibits improved fire retardant and sealability properties.

Fire hydrant thermal and acoustic insulation material

An open weave, air permeable fiber pad is formed from a plurality of compressed, interlocked fiber strands. A non-uniform, three dimensional grid of spaced apart, expandable graphite particles are secured at randomly spaced apart intervals to individual fiber strands with a particle distribution density sufficient to form a barrier to air flow through a defined area of the fiber pad when exposed to a source of heat causing the expandable graphite particles to be converted from their normal volume to a heat-activated, substantially expanded volume.

Photocatalytic self-cleaning cement material and preparation method and application thereof

本发明涉及一种光催化自清洁水泥材料及其制备方法与应用，特别是涉及一种尾矿‑氧化石墨烯‑半导体光催化剂水泥基复合材料的制备方法。所述光催化自清洁水泥材料，由如下质量百分比的组份组成：尾矿50‑80％；水泥18‑50％；氧化石墨烯0.01‑2％；半导体光催化剂0.5‑5％；萘系高效减水剂0.1‑0.4％。本发明所述光催化自清洁水泥材料中石墨烯基材料组份可以显著改善尾矿复合型水泥材料的抗折强度和抗压强度等力学性能，同时加入半导体光催化剂组份可赋予水泥基材料优异的光催化性能，应用于降解水体中的有机污染物、大气中的氮氧化物、硫化物等。

Friction material for brake pads based on adhesive composition with low storage time and related brake pad

描述了具有减少的存储时间的摩擦材料，所述摩擦材料包含基于水硬性粘合剂的粘合剂组合物，以及它在制动衬块和工业应用的用途。

Preparation method of chlorosilane modified graphene oxide/silicon dioxide heat-insulation composite material

本发明属于建筑保温材料领域，公开了一种氯硅烷改性氧化石墨烯/二氧化硅气凝胶复合保温材料的制备方法，包括：氧化石墨烯溶液的制备；氯硅烷改性氧化石墨烯的制备；氯硅烷改性氧化石墨烯/硅源溶胶的制备；改性氧化石墨烯/二氧化硅凝胶的制备；改性氧化石墨烯/二氧化硅气凝胶的制备。本发明利用四氯硅烷与羟基之间的高反应活性对氧化石墨烯进行表面化学改性，得到的氯硅烷改性氧化石墨烯在硅源前驱体的醇/水混合溶液中具有良好的分散性。另外改性氧化石墨烯表面的氯硅烷可作为反应活性点使改性氧化石墨与硅源的水解产物之间形成强力的Si‑O‑Si化合键连接，保证氧化石墨烯与二氧化硅三维网络之间有足够交联点，起到有效力学增强作用。

Formula, production method and production device of anti-crack mortar for floor heating heat conduction cushion layer

本发明涉及自流平技术领域，具体涉及一种地暖导热垫层用抗裂砂浆的配方及生产方法和生产装置，水泥10％～18％、石膏粉3～5％、河沙47％～53％、粉煤灰12％～14％、乳胶粉4％～8％、羟丙基甲基纤维素0.8％、憎水剂0.6％、木质纤维0.4％、淀粉醚0.8％和导热介质0.5％，通过上述配方生成的砂浆，添加导热介质和改善体系结构，导热介质采用石墨粉，铁粉或者铝粉的结合以材料方面改善材料的导热性能，从而达到快速施工、抗压抗折、自动流平、导热快速的优点；通过种地暖导热垫层用抗裂砂浆生产装置，利用送料板进行间隙性送料，并控制每种原料的进料量，防止同一种原料大量聚集在一块，从而提高搅拌效果。

A method and electrical conducting heating concrete containing graphene

The present invention relates to a heat radiating concrete, and to a manufacturing method thereof. More particularly, the present invention relates to heat radiating concrete containing graphene, which has enhanced stability and durability by having increased electrical conductivity, thereby being capable of enduring at a high temperature for a long period of time. Also, the heat radiating concrete containing graphene can be manufactured in an eco-friendly way by mixing harmless components while minimizing the use of harmful cement containing a large quantity of chemical components. In addition, the heat radiating concrete can be applied to various fields, and enhances stability when applied to various fields. The heat radiating concrete comprises: Masato aggregates; red clay; limestone fine powder; cement; slag fine powder; water; a graphene solution; and a mineral bonding component.

Shotcrete composition including high strength accelerating amorphous calcium aluminate

PURPOSE: A shotcrete composition including set accelerator agents of cement mineral for high intensity shotcrete is provided to reduce the thickness of shotcrete by satisfying early strength and long term intensity without using high-intensity blending material. CONSTITUTION: A shotcrete composition including set accelerator agents of cement mineral for high intensity shotcrete comprises cement 17-24 weight%, aggregate 64-74 weight%, water 6-12weight%, and high-intensity set accelerator agent 1-2 weight%. The set accelerator agent use powdery cement mineral system. The set accelerator agent comprises 12CaO·7Al2O3 powder 55-75 weight% which is the main raw material, calcium sulfo aluminate 0.1-10 weight%, a hardening accelerator 0.5-7weight%, an anhydrous gypsum 15-35 weight%, and micro powder pozzolan 5-10 weight%. A calcium sulfoaluminate steadily forms ettringite and enhances long term intensity when reacting with cement. Anhydrous gypsum enhances latter term hardening rate and compressive strength. Micropowder pozzolan enhances long term intensity, chemical resistance, and seawater resistance. [Reference numerals] (AA) High intensity cement mineral-based accelerating agent manufacturing process; (B1) A process - 12CaO, 7Al_2O_3 powder preparing process; (B10) A-9 process - melting process; (B11) A-10 process - impurity extracting process; (B12) A-11 process - water cooling process; (B13) A-12 process - clinker component intermediate inspecting process; (B14) A-13 process - clinker coarse grinding process; (B15) A-14 process - sorting process; (B16) A-15 process - work in process storage process; (B17) A-16 process - measuring process; (B18) A-17 process - fine grinding process; (B19) A-18 process - finely ground product intermediate inspecting process; (B2) A-1 process - ingredient inspecting process; (B20) A-19 process - 12CaO, 7Al_2O_3 powder packaging process; (B3) A-2 process - mixing process for generating seeds; (B4) A-3 process - alumina byproduct ...

Process for hydrophobizing shaped insulation-material bodies based on silica at ambient pressure

The present invention relates to a process for producing a hydrophobized shaped thermal- insulation body, comprising pressing or compacting a thermal-insulation mixture containing a silica, an IR opacifier, an organosilicon compound A and an organosilicon compound B, wherein organosilicon compound A is hexamethyldisilazane (HMDS) and organosilicon compound B corresponds to a substance of the formula R n SiX 4-n , where R = hydrocarbyl radical having 1 to 18 carbon atoms, n = 0, 1 or 2, X = Cl, Br or alkoxy group –OR 1 where R 1 = hydrocarbyl radical having 1 to 8 carbon atoms, or organosilicon compound B corresponds to a silanol of the formula HO[-Si(CH 3 ) 2 O-] m H, where m = 2-100.

Cement compositions including resilient graphitic carbon fraction.

Se proporciona un método para mejorar las características térmicas de composiciones de cemento en el cual las partículas de carbón grafítico resilientes (``RGC´´) son sustituidas por una porción del agregado fino (típicamente arena) en la formulación de cemento. Para los propósitos de la presente descripción, se pretende que ``fino´´ describa partículas que tienen un tamaño de malla de menos de aproximadamente malla 8, o un tamaño de partícula de menos de aproximadamente 2.38 mm, o, de manera más preferible al referirse a RGC, un tamaño de malla de menos de aproximadamente malla 16 y un tamaño de partícula de menos de aproximadamente 1.19 mm. Se pretende que ``resiliente´´ describa partículas de carbón grafítico que exhiben una recuperación de al menos aproximadamente 20% después de la compresión a 10,000 psi.

Composite lubricating material, engine oil, grease, and lubricant, and method of producing a composite lubricating material

윤활성이 우수한 복합 윤활 소재, 엔진 오일, 그리스 및 윤활유를 제공한다. 모재에 적어도 흑연계 탄소 소재 및/또는 흑연계 탄소재로부터 박리된 그래핀형이 분산된 복합 윤활 소재로서, 상기 흑연계 탄소 소재는, 능면정계 흑연층(3R)과 육방정계 흑연층(2H)을 갖고, 상기 능면정계 흑연층(3R)과 상기 육방정계 흑연층(2H)의 X선 회절법에 의한 다음의 (수학식 1)에 의해 정의되는 비율 Rate(3R)가 31% 이상인 것을 특징으로 하는 복합 윤활 소재. Rate(3R)=P3/(P3+P4)×100…(수학식 1) 여기서, P3은 능면정계 흑연층(3R)의 X선 회절법에 의한 (101)면의 피크 강도 P4는 육방정계 흑연층(2H)의 X선 회절법에 의한 (101)면의 피크 강도이다. Provides lubricating materials with excellent lubricity, engine oil, grease and lubricating oil. A composite lubrication material in which at least a graphene type is separated from a graphite carbon material and / or a graphite carbon material and dispersed in a base material, wherein the graphite carbon material is a mixture of a surface-hardenable graphite layer (3R) and a hexagonal graphite layer (2H) , And the ratio Rate (3R) defined by the following formula (1) by the X-ray diffraction method of the rough surface graphite layer (3R) and the hexagonal graphite layer (2H) is 31% or more Composite lubrication material. Rate (3R) = P3 / (P3 + P4) x100 ... (1) here, P3 is the peak intensity of the (101) face of the surface-most graphite layer 3R by the X-ray diffraction method P4 is the peak intensity of the (101) plane of the hexagonal graphite layer (2H) by the X-ray diffraction method.

Reinforced magnesium phosphate cement composite material and preparation method thereof

本发明提供一种增强磷酸镁水泥复合材料及其制备方法，复合材料包括氧化石墨烯/碳纳米管复合改性剂和磷酸镁水泥干料，氧化石墨烯/碳纳米管复合改性剂由氧化石墨烯和碳纳米管复配，氧化石墨烯和碳纳米管的总干重与磷酸镁水泥干料干重质量份之比为0.01‑0.5：100。方法包括：制备氧化石墨烯/碳纳米管复合改性剂；将制备氧化石墨烯/碳纳米管复合改性剂与磷酸镁水泥干料混合，搅拌均匀，得到水泥浆；浇筑水泥浆至模具内定型，经震荡去除气泡，模具表面覆盖薄膜，养护后脱模，最后养护至使用龄期。本发明制备的磷酸镁水泥强度高及力学性能好，且内部结构整齐密实，孔隙结构得到优化，耐久性良好。

A kind of photocatalytic self-cleaning cement material and the preparation method and application thereof

本发明涉及一种光催化自清洁水泥材料及其制备方法与应用，特别是涉及一种尾矿‑氧化石墨烯‑半导体光催化剂水泥基复合材料的制备方法。所述光催化自清洁水泥材料，由如下质量百分比的组份组成：尾矿50‑80％；水泥18‑50％；氧化石墨烯0.01‑2％；半导体光催化剂0.5‑5％；萘系高效减水剂0.1‑0.4％。本发明所述光催化自清洁水泥材料中石墨烯基材料组份可以显著改善尾矿复合型水泥材料的抗折强度和抗压强度等力学性能，同时加入半导体光催化剂组份可赋予水泥基材料优异的光催化性能，应用于降解水体中的有机污染物、大气中的氮氧化物、硫化物等。

Inorganic fire protection and insulation foam and use thereof

The invention relates to a hydraulically binding composition for producing inorganic fire protection and/or insulation foams, containing at least one hydraulic binder, a propellant mixture, at least one thermally expandable compound and optionally a foam stabiliser, the at least one thermally expandable compound being contained in a quantity dependent on the particle sizes thereof and the adjusted density of the foamed composition, such that the foam structure of the foamed composition is not destroyed by the expansion of the compound(s) during heating of the composition above the onset temperature of said compound(s). The invention also relates to a fire protection or insulation foam produced in this way and to the use thereof.

A kind of municipal construction, architectural engineering paveio(u)r and its design method

本发明提供了一种市政施工、建筑工程用铺路材料及其设计方法，所述铺路施工材料由沥青结合料和骨料组成；所述沥青结合料由以下原料制成：道路石油沥青80‑120份，乳化剂1‑4份，聚氨酯改性环氧树脂15‑25份，海泡石1‑10份，石墨烯粉3‑10份，抗紫外老化剂0.1‑0.5份，去离子水15‑30份；本发明铺路材料由于添加了聚氨酯改性环氧树脂、石墨烯粉、海泡石以及抗紫外老化剂进行改性，具有了防车辙、抗温变、耐老化、耐候性等优异的性能，能广泛应用于不同环境下市政、建筑的路面施工。

A kind of C230 strength grade very-high performance fiber concrete and preparation method thereof containing coarse aggregate

本发明公开了一种含粗骨料的C230强度等级超高性能纤维混凝土及其制备方法，所述混凝土的质量份组成如下：水泥560份、水64份、碎石900份、细骨料780份、粉煤灰75份、稻壳灰63份、硅灰145份、减水剂16份、激发剂11份、纤维素纤维1.7份、钢纤维78份、羟基改性碳纳米管分散液50份，氧化石墨烯分散液52份、消泡剂2.9份。制备的混凝土具有较高的韧性和耐久性能，与型钢之间具有较高的粘结强度，抗压强度达到235.48MPa，抗折强度达到48.23MPa，劈拉强度达到22.95MPa，与型钢之间的粘结强度达到9.24MPa，氯离子抗渗等级达到Ⅵ级。用于型钢混凝土组合结构中，能够有效发挥型钢与混凝土之间的协同工作性能，弥补型钢与混凝土粘结性能差、无法充分发挥二者各自的力学性能的不足。

Fly ash cementitious compositions

A composition comprising: (a) fly ash cementitious binder; and (b) a chemical activator selected from sodium silicate, potassium silicate, sodium sulfate, sodium phosphate, calcium sulfate, potassium sulfate, potassium phosphate, CaO, Fe 2 O 3 , sodium chloride, calcium chloride, fine fraction of concrete waste from construction or demolition, cement kiln dust, or a combination thereof, wherein the fly ash is the only cementitious binder present in the composition and the CaO activator, if present, is present in an amount ≤10 weight percent, based on the total dry weight of the composition.

Uniform dispersing of graphene nanoparticles in a host

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

Friction materials for brake pads based on binding compositions and related brake pads

An improved friction material is described, comprising a binding composition based on a hydraulic binder, and its use in brake pads and industrial applications.

Methods and systems for making nanocarbon particle admixtures and concrete

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.

Graphite-based carbon material which is used as graphene precursor, graphene dispersion and graphene composite including same, and method for producing same

Provided is a graphite-based carbon material which readily exfoliates into graphene when used as a graphene precursor and from which a high-concentration graphene dispersed solution can be obtained easily. In this graphite-based carbon material which is used as a graphene precursor, Rate (3R) defined by Formula 1 by X-ray diffraction analysis is 40% or more. Rate(3R)=P3/(P3+P4)×100 (Formula 1) P3 is the peak intensity of plane (101) of a rhombohedral graphite layer (3R) by X-ray diffraction analysis, and P4 is the peak intensity of plane (101) of a hexagonal graphite layer (2H) by X-ray diffraction analysis.

Inorganic fire protection and insulation foam and use thereof

Electrode composition

The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25° C. according to DIN EN 1426 of <50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65° C. and/or having a density at 25° C. according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of <500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content.

Methods for preparation of graphene nanoribbons from carbon nanotubes and compositions, thin films and devices derived therefrom

육안으로 보이는 양의 산화된 그래핀 나노리본을 생산하는 방법이 본원에 개시된다. 이 방법은 복수개의 탄소 나노튜브를 제공하는 단계 및 복수개의 탄소 나노튜브를 적어도 하나의 산화제와 반응시켜 산화된 그래핀 나노리본을 형성하는 단계를 포함한다. 적어도 하나의 산화제는 탄소 나노튜브를 종방향으로 개방시키도록 사용 가능한 것이다. 몇몇 실시태양에서, 반응 단계는 적어도 하나의 산의 존재하에 일어난다. 몇몇 실시태양에서, 반응 단계는 적어도 하나의 보호제의 존재하에 일어난다. 본 개시내용의 다양한 실시태양은 또한 산화된 그래핀 나노리본을 적어도 하나의 환원제와 반응시켜 환원된 그래핀 나노리본을 생산하는 방법을 포함한다. 산화된 그래핀 나노리본, 환원된 그래핀 나노리본, 및 이로부터 제조된 조성물 및 제품 또한 본원에 개시된다. A method for producing an amount of visible oxidized graphene nanoribbons is disclosed herein. The method includes providing a plurality of carbon nanotubes and reacting the plurality of carbon nanotubes with at least one oxidizing agent to form an oxidized graphene nanoribbons. At least one oxidant can be used to open the carbon nanotubes in the longitudinal direction. In some embodiments, the reaction step occurs in the presence of at least one acid. In some embodiments, the reaction step occurs in the presence of at least one protecting agent. Various embodiments of the present disclosure also include a method of reacting oxidized graphene nanoribbons with at least one reducing agent to produce reduced graphene nanoribbons. Oxidized graphene nanoribbons, reduced graphene nanoribbons, and compositions and articles made therefrom are also disclosed herein.

Graphite-based lubricating material and method of producing same

Provided are a composite lubricating material , engine oil, grease and lubricant, excellent in lubricity. The composite lubricating material comprises at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/(P3+P4) ×100 .multidot. Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and 24 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

High-strength concrete added with PVA (polyvinyl alcohol) fibers and graphene and preparation method thereof

本发明涉及一种添加PVA纤维和石墨烯的高强度混凝土及其制备方法，高强度混凝土包括：PVA纤维、石墨烯、水泥、水、沙子、碎石和减水剂。制备方法为：将PVA纤维和石墨烯倒入部分水中，混合均匀；将水泥倒入剩余水中，使用水泥搅拌机搅拌均匀；将PVA纤维和石墨烯的混合液倒入搅拌均匀的水泥中，然后加入减水剂，混合均匀，获得混合液A；最后将碎石和沙子倒入混合液A中，充分搅拌，获得高强度混凝土。本发明适用于建筑结构的加固处理，可以显著增强混凝土的强度指标。

Method for hydrophobicizing shaped insulating material bodies based on silicon dioxide at ambient pressure

本发明涉及一种生产疏水化的成型绝热体的方法，所述方法包括压制或压实包含二氧化硅、IR遮光剂、有机硅化合物A和有机硅化合物B的绝热混合物，其中有机硅化合物A是六甲基二硅氮烷(HMDS)且有机硅化合物B对应于式R n SiX 4‑n 的物质，其中R＝具有1至18个碳原子的烃基，n＝0、1或2，X＝Cl、Br或烷氧基–OR 1 ，其中R 1 ＝具有1至8个碳原子的烃基，或有机硅化合物B对应于式HO[‑Si(CH 3 ) 2 O‑] m H的硅醇，其中m＝2‑100。

Composite lubricating material, engine oil, grease, and lubricating oil

Provided are a composite lubricating material having superior lubricity, an engine oil, a grease, and a lubricating oil. The composite lubricating material results from graphene delaminated from at least a graphitic carbon material and/or a graphitic carbon member being dispersed in a matrix, and is characterized in that the graphitic carbon material has rhombohedral graphite layers (3R) and hexagonal graphite layers (2H), and the fraction Rate (3R) defined by the following formula 1 resulting from an X-ray diffraction method of the rhombohedral graphite layers (3R) and the hexagonal graphite layers (2H) is at least 31%: Rate (3R) = P3/(P3+P4)×100 ...(formula 1). Here, P3 is the peak strength in the (101) plane resulting from the X-ray diffraction method of the rhombohedral graphite layers (3R), and P4 is the peak strength in the (101) plane resulting from the X-ray diffraction method of the hexagonal graphite layers (2H).

Anti-crack concrete and preparation method thereof

本申请属于混凝土材料的技术领域，具体公开了一种抗裂混凝土及其制备方法。本申请的一种抗裂混凝土，主要由包括以下重量份的混凝土原料制得：水泥400‑500份、粗骨料1200‑1300份、细骨料400‑460份、水150‑250份、膨胀石墨11‑13份、改性纳米氧化铝9‑10份、月桂酸89‑100份、无水乙醇90‑100份和减水剂6‑10份。本申请中，膨胀石墨能够吸附月桂酸和纳米氧化铝，月桂酸具有较高的相变焓值及热稳定性，可有效控制混凝土的内部温度，防止裂缝的产生，纳米氧化铝能够填充混凝土内部的缝隙，提高混凝土的密实度，提高混凝土的抗裂性能。

Unshaped refractories

본 발명은 알루미나를 주성분으로 하는 부정형 내화물에 관한 것으로, 전체 총 중량에 대하여 알루미나 76~84중량%, 인산흑연 10~15중량%, 금속 알루미늄 분말 2~3중량%, 스테인레스 화이바 4~6중량%를 포함하여 이루어진다. 본 발명은 고온의 용강에 대한 내침식성이 우수하고, 응력을 감소시켜 균열을 방지하며 균열이 발생하더라도 그 균열의 진행을 억제하는 내스폴링성이 특히 우수한 이점이 있다. The present invention relates to an amorphous refractory containing alumina as a main component, 76 to 84% by weight of alumina, 10 to 15% by weight of graphite phosphate, 2 to 3% by weight of metallic aluminum powder, 4 to 6% by weight of stainless steel fiber. It is made, including. The present invention has the advantage of excellent corrosion resistance to high temperature molten steel, to prevent stress by reducing the stress and to suppress the progress of the crack even if a crack occurs is particularly excellent.

METHOD FOR PRODUCING GRANULATED BUILDING MATERIAL

1. Способ получения гранулированного строительного материала, включающий подготовку кремнеземистого компонента, приготовление связующего раствора, смешение компонентов, гранулирование смеси и термообработку, отличающийся тем, что связующий раствор готовят на основе коллоидного кремнезема и растворимых солей щелочных металлов путем совместного мокрого помола с одновременным растворением стекловидного силиката натрия, карбоната натрия и/или других растворимых в воде соединений щелочных металлов при температуре 40-110°C, при следующем соотношении основных компонентов: стекловидный силикат натрия - 10-50%, карбонат натрия - 5-40%, вода - 40-80%, причем смешение кремнеземистого компонента со связующим раствором совмещают с добавлением газообразователя и гранулированием смеси, при этом смешение и гранулирование проводят в одном устройстве - грануляторе при соотношении связующего раствора и кремнеземистого компонента от 1:5 до 1:1,2, после чего сырцовые гранулы подвергают термообработке: сушке и обжигу, при этом суммарное содержание щелочных оксидов в готовом материале составляет от 5 до 20 мас. %.2. Способ по п. 1, отличающийся тем, что при смешении используют газообразователи углеродного и/или карбонатного типа и/или карбидного типа.3. Способ по п. 1, отличающийся тем, что перед гранулированием проводят предварительное смешение компонентов с получением рыхлой неуплотненной смеси, которая в ходе гранулирования уплотняется в компактные гранулы.4. Способ по п. 1, отличающийся тем, что стекловидный силикат натрия растворяют в водном растворе карбоната натрия и/или других растворимых в воде соединений щелочных металлов.5. Спосо� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C04B 20/00 (13) 2014 123 150 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014123150/03, 09.06.2014 Приоритет(ы): (22) Дата подачи заявки: 09.06.2014 (43) Дата публикации заявки: 20.12.2015 Бюл. № 35 (72) Автор(ы): Васкалов Владимир Федорович (RU ...

Fire resistant curtain wall light weight board

본 발명은 기존 알루미늄 커튼월 시스템의 내화성을 향상시키고 화재 등으로 인한 고층 빌딩의 취약성을 개선할 수 있는 커튼월용 경량 무기발포 내화보드를 제공하기 위한 것으로서, 고층빌딩 알루미늄 커튼월용 경량 무기발포 내화보드에 있어서, 플라이애쉬, 규석분말 또는 이들의 혼합물로부터 선택되는 혼화재와, 폐유리분말, 유리연마슬러지 또는 이들의 혼합물로부터 선택되는 슬러지와, 실리카퓸, 고로슬래그 미분말 또는 이들의 혼합물로 이루어진 군에서 선택된 1종을 혼합한 제1의 분체와; 상기 제1의 분체에 그라파이트, 산화철, 규산나트륨으로 이루어진 군에서 선택되는 어느 하나의 무기계 발포제를 첨가하여 제2의 분체를 제조한 후, 상기 제2의 분체에 소듐실리케이트와 물을 혼합한 혼합수를 상기 제2의 분체 100중량부에 대하여 1∼50중량부를 혼입하여 발포체를 제조하고, 상기 제조된 발포체에 함유된 수분과 유기물을 증발시킨 후, 700∼780℃에서 소성한 것을 특징으로 한다. 이와 같은 경량 무기발포 내화보드에 의하면, 고층빌딩 알루미늄 커튼월의 내화성능을 향상시킬 수 있으며 층간 개구부 및 구조체와 커튼월 사이를 통해 전파되는 화재를 예방할 수 있다. The present invention is to provide a lightweight inorganic foam fireproof board for curtain walls that can improve the fire resistance of the existing aluminum curtain wall system and improve the fragility of high-rise buildings due to fire, etc., to a lightweight inorganic foam fireproof board for high-rise building aluminum curtain wall 1, selected from the group consisting of admixtures selected from fly ash, silica powder or mixtures thereof, sludge selected from waste glass powder, glass polishing sludge or mixtures thereof, and silica fume, blast furnace slag fine powder or mixtures thereof. 1st powder which mixed species; Mixed water obtained by adding any one inorganic blowing agent selected from the group consisting of graphite, iron oxide and sodium silicate to the first powder to prepare a second powder, and then mixing sodium silicate and water in the second powder To prepare a foam by mixing 1 to 50 parts by weight with respect to 100 parts by weight of the second powder, and after evaporating the water and organic matter contained in the prepared foam, it is characterized in that the fired at 700 ~ 780 ℃. According to such a lightweight inorganic foam fireproof board, it is possible to improve the fire resistance of the high-rise building aluminum curtain wall and to prevent fire propagating between the interlayer openings and the structure and the curtain wall.

Building material mixture for shielding against electromagnetic radiation

The invention relates to a building material mixture, the dry material having 10 - 98 wt.% carbon and 2 - 70 wt.% binder, characterised in that the building material mixture also comprises 1 - 80 wt.% loose particles, the surface of the loose particles being coated at least partially with an electrically conductive material.

Polymer mortar composition and Repairing method of structure using thereof

본 발명은 친환경 폴리머 몰탈 조성물 및 이를 이용한 구조물의 보수보강방법에 관한 것으로, 더욱 상세하게는 시멘트 20~50중량%, 실리카흄 0.5~3중량%, 흑연 0.03~0.3중량%, 폴리머 분말 1~5중량% 및 잔부의 세라믹 분말을 포함하는 폴리머 몰탈 조성물을 타설하여 구조물을 보수보강하는 것이다. 본 발명에 의하면, 내구성 및 내화성이 우수한 친환경 폴리머 몰탈 조성물을 이용하여 구조물을 보수보강함으로써, 구조물의 내구성을 개선함은 물론, 화재로 인한 건물의 구조내력 저하를 방지하며, 내진성을 확보할 수 있다는 장점이 있다. The present invention relates to an eco-friendly polymer mortar composition and a method for repairing and reinforcing structures using the same, and more particularly, 20 to 50% by weight of cement, 0.5 to 3% by weight of silica fume, 0.03 to 0.3% by weight of graphite, 1 to 5% by weight of polymer powder % and the remainder is to repair and reinforce the structure by pouring the polymer mortar composition containing the ceramic powder. According to the present invention, by repairing and reinforcing the structure using an eco-friendly polymer mortar composition having excellent durability and fire resistance, it is possible to improve the durability of the structure, prevent deterioration of the structural strength of the building due to fire, and secure earthquake resistance. There are advantages.

Plate, in particular cover plate for molten metal, method for the production thereof and use thereof

本发明涉及一种阻热板(1)，尤指盖板(5a；b)，以便热隔离冶金炉(6)内的金属熔体，尤指钢水。所述板(1)包括粘结剂基质(2)，该粘结剂基质(2)包括至少一种已固化的临时性有机粘结剂和固化在粘结剂基质(2)内的骨料(3)，所述骨料(3)包含和/或由生物性硅酸，尤指谷壳灰。本发明同时提供该板(1)的制备方法和用途。

Quick-hardening grout composition for multi-step grouting reinforcement with steel pipe and multi-step grouting reinforcement method using the same

The present invention relates to a rapid hardening group composition for multi-stage grouting method for a steel pipe comprising the following steps: drilling the ground of a tunnel to be reinforced (S10); inserting the steel pipe into a perforation (S20); filling a sealing material between the steel pipe and the perforation (S30); gelling the filled sealing material (S40); filling a main injection material including the injection material and the quick-setting material with the steel pipe inserted into the perforation (S50); and curing the filled main injection material (S60). Wherein, the sealing material includes a sealing binder and mixing water at a water-cement ratio (W/C) of 1.1 to 1.3. The present invention relates to the rapid hardening grout composition for multi-stage grouting method for the steel pipe, which can maximize a reinforcing effect of soft ground and tunnel and dramatically shorten the total construction time, and the multi-stage grouting method for the steel pipe using the same.

Electromagnetic Wave Shielding Concrete with Solid Carbon Capsules and Manufacturing Method

본 발명은 폐음극재 및 액상 폐탄소나노튜브(CNT)를 포함하도록 성형되는 고상 탄소 캡슐이 첨가되어 전자파차폐 효율을 더욱 향상시키며 산업부산물인 제강슬래그를 대체 골재로 첨가하여 충분한 강도가 확보될 수 있게 한 고상 탄소 캡슐이 혼입된 전자파차폐 콘크리트 조성물 및 이의 제조방법에 관한 것으로, 보다 상세하게는 시멘트; 제강 슬래그 골재; 및 폐음극재, 액상 폐탄소나노튜브(CNT), 감수제 및 유동화제를 포함하며, 기설정된 범위 내의 구경과 길이를 갖는 크기로 성형되는 고상 탄소 캡슐;을 포함하는 것이 특징이다. In the present invention, a solid carbon capsule molded to include waste anode material and liquid waste carbon nanotubes (CNT) is added to further improve electromagnetic shielding efficiency, and steelmaking slag, an industrial by-product, is added as an alternative aggregate to ensure sufficient strength. It relates to an electromagnetic wave shielding concrete composition incorporating solid carbon capsules and a method for manufacturing the same, and more specifically to cement; steelmaking slag aggregate; and a solid carbon capsule containing waste anode material, liquid waste carbon nanotubes (CNT), a water reducing agent and a fluidizing agent, and molded to a size having a diameter and a length within a predetermined range.

Sintering-free small-size silicon carbide resistor particles and preparation method thereof

本发明公开了一种免烧结碳化硅电阻粒及其制备方法，该电阻粒包括以下质量份的原料组分：碳化硅微粉100份(由粗、中、细三种颗粒的碳化硅粉进行级配)，酚醛树脂1‑50份，碳化硅晶须0‑30份，石墨烯粉0‑20份，表面活性剂0.1‑3份，分散剂0.1‑3份。制备时，将原料按比例配置浆料，经喷雾造粒制粉，再干压成型，再加热固化制备。其技术原理是：将合适颗粒级配的碳化硅陶瓷粉，与酚醛树脂、表面活性剂、分散剂、石墨烯粉均匀混合制备浆料，喷雾造粒制粉，再与碳化硅晶须搅拌混合，干压成型，加热使其固化。本发明利用热固性树脂受热固化的原理，将碳化硅粉体固结成型，易于得到均匀性好、强度较高的碳化硅电阻粒。

Magnesia-graphite type refractory

제철소 제강공정에서 사용하는 전로, 티밍 레이들 등에 적용될 수 있는 마그네시아-흑연질 내화물이 제공된다. 이 마그네시아-흑연질 내화물은 마그네시아-흑연질 내화조성물 100중량부에 대해 질화 알루미늄이 1~5중량부 포함하여 이루어지는 것이다. 마그네시아-흑연질 내화물에서 질화 알루미늄은 고온 분해과정을 통해 발생하는 Al 산화물과 마그네시아 입자가 반응하여 내화물의 표면에 스피넬 조성의 보호층을 형성함으로써 내산화성을 크게 개선한다. Provided is a magnesia-graphite refractory material that can be applied to converters, teaming ladles, and the like used in steel making processes. The magnesia-graphite refractory material comprises 1 to 5 parts by weight of aluminum nitride based on 100 parts by weight of the magnesia-graphite refractory composition. In the magnesia-graphite refractory, aluminum nitride significantly improves oxidation resistance by forming a protective layer of spinel composition on the surface of the refractory by reacting Al oxide and magnesia particles generated through high temperature decomposition.

Methods and systems for making nanocarbon particle admixtures and concrete

A method for making an admixture in liquid form for concrete includes the step of providing a nanocarbon mixture containing at least two different types of nanocarbon particles, with each type of nanocarbon particle having a predetermined percentage range by mass of the admixture, crushing or grinding the nanocarbon mixture into a carbon powder, and wetting and mixing the carbon powder in a water/surfactant mixture using high energy mixing apparatus. The method can also include blending the nanocarbon mixture with a nano-silica based compound, either before or after the wetting and mixing step. An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.