C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/30 (2006.01) C04B 24/26 (2006.01) C08G 12/16 (2006.01) C08G 73/02 (2006.01)
Patent
CA 2575594
The invention concerns a method for inerting clays in sand intended for preparing hydraulic compositions, comprising a step which consists in adding to the composition or one of its constituents a cationic polymer having a cationic charge density more than 0.5 meq/g and an intrinsic viscosity less than 1 dg/l.
L'invention vise un procédé d'inertage d'argiles dans des sables destinés à la préparation de compositions hydrauliques, comprenant une étape consistant à ajouter à la composition ou à l'un de ses constituants un polymère cationique présentant une densité de charges cationiques supérieure à 0,5 meq/g et une viscosité intrinsèque inférieure à 1 dl/g.
Jacquet Alain
Villard Emmanuel
Watt Olivier
Lafarge
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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