Process for producing an acid-resistant barrier seal in soil, and compositions usable for this purpose
Номер патента: AU3581689A
Опубликовано: 07-12-1989
Автор(ы): Francis Marcel Louis Delmas, Michel Auguste Georges Gandais
Принадлежит: Sif Entreprise, Sondages Injections Forages SIF Enterprise Bachy
Опубликовано: 07-12-1989
Автор(ы): Francis Marcel Louis Delmas, Michel Auguste Georges Gandais
Принадлежит: Sif Entreprise, Sondages Injections Forages SIF Enterprise Bachy
Реферат: The invention relates to civil engineering. It is concerned with a process for making a sealing cut in the soil which is to be in contact with an acid water having a pH value of below 5.5, according to which a trench is dug in the ground and the trench made is filled with a sealing concrete comprising water, a clay and an acid-resistant granulate with self-filtering properties, characterised in that the sealing concrete contains, furthermore, an aqueous solution of sodium and/or potassium silicate and is free with any acid or acid-generating substance capable of forming a silicic acid gel with a silicate, the proportion of sodium and/or potassium silicate incorporated in the sealing concrete being sufficient to bring about the formation of a local sealing barrier when the sealing wall is locally subjected to the percolation of acid water coming from the surrounding soil.
<??>The invention is used for combatting pollution.
Process for producing an acid-resistant and electrically conductive building material covering
Номер патента: DE19915093C2. Автор: . Владелец: CRC Chemical Research Co Ltd. Дата публикации: 2002-08-14.