Extrudable cementitious material

Details Extrudable cementitious material Extrudable cementitious material

C - Chemistry, Metallurgy

04

B

C04B 24/00 (2006.01) C04B 22/00 (2006.01) C04B 24/10 (2006.01) C04B 24/16 (2006.01) C04B 24/18 (2006.01) C04B 24/22 (2006.01) C04B 24/24 (2006.01) C04B 24/26 (2006.01) C04B 24/28 (2006.01) C04B 24/38 (2006.01) C04B 28/02 (2006.01)

Patent

CA 2382274

A method and agent for treating a cementitious material for extrusion, comprising adding to the cementitious material a viscosity enhancing agent and a dispersion agent in a quantity sufficient to increase the efficacy of the viscosity enhancing agent. By increasing the efficacy of the viscosity enhancing agent, extrudability may be maintained with less viscosity enhancing agent or a lower grade (cheaper) viscosity enhancing agent than is conventionally used, or the extrudability may be improved for the same quantity of viscosity enhancing agent compared to a conventional dosage.

L'invention concerne un procédé et un agent pour le traitement d'une matière cémenteuse extrudable, qui consiste à ajouter à ladite matière cémenteuse un agent augmentant la viscosité et un agent de dispersion en quantité suffisante pour que l'efficacité de l'agent augmentant la viscosité soit accrue. En améliorant l'efficacité de l'agent augmentant la viscosité, on peut maintenir l'extrudabilité en utilisant moins d'agent augmentant la viscosité ou un agent de qualité inférieure (moins cher) que celui utilisé habituellement, ou on peut améliorer l'extrudabilité pour la même quantité d'agent augmentant la viscosité que pour un dosage classique.

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