C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/12 (2006.01) C09K 3/10 (2006.01) C09K 17/12 (2006.01)
Patent
CA 2463638
The present invention relates to the use of a sealing composition for sealing rock or soil, wherein the sealing composition is obtainable by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%. The invention also relates to a method for cutting off a liquid flow in a leaking part or cavity by inserting the sealing composition. The invention also relates to a method for preparing the sealing composition and a composition obtainable from the method.
L'invention concerne l'utilisation d'une composition d'étanchéité destinée à étanchéifier de la roche ou du sol. Cette composition d'étanchéité est obtenue par mélange d'un sol silicieux et au moins un agent gélifiant, le sol silicieux possédant une valeur S supérieure à environ 72 %. Cette invention concerne également un procédé destiné à couper un écoulement liquide dans une partie ou une cavité non étanche par insertion de la composition d'étanchéité. L'invention concerne enfin un procédé destiné à préparer la composition d'étanchéité et une composition pouvant être obtenue au moyen dudit procédé.
Greenwood Peter
Jansson Inger
Skarp Ulf
Akzo Nobel N.v.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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