Solubilized defoamers for cementitious compositions

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 19/04 (2006.01) C04B 24/12 (2006.01) C04B 24/32 (2006.01) C04B 28/02 (2006.01) C04B 40/00 (2006.01)

Patent

CA 2506659

Amine solubilizing agents are mixed with water insoluble defoamers and optionally a dispersant for cementitious compositions to provide an admixture for cementitious compositions that is stable over time. A cementitious composition is provided that includes cementitious material, water, a water insoluble defoamer, optionally a dispersant for cementitious compositions, and an amine solubilizing agent that solubilizes the water insoluble defoamer. A method is provided for making a cementitious composition that includes mixing cementitious material, water, a water insoluble defoamer, an amine solubilizing agent that solubilizes the water insoluble defoamer, and optionally a dispersant for cementitious compositions.

Selon l'invention, des agents de solubilisation à base d'amine mélangés avec des additifs antimousse insolubles dans l'eau et éventuellement un dispersant pour des compositions à base de ciment afin d'obtenir un adjuvant pour compositions à base de ciment qui est stable dans le temps. L'invention concerne une composition à base de ciment qui comprend un matériau à base de ciment, de l'eau, un additif antimousse insoluble dans l'eau, éventuellement un dispersant pour des compositions à base de ciment et un agent de solubilisation à base d'amine qui solubilise l'additif antimousse insoluble dans l'eau. L'invention concerne également un procédé qui permet de fabriquer une composition à base de ciment et qui consiste à mélanger un matériau à base de ciment, de l'eau, un additif antimousse insoluble dans l'eau, un agent de solubilisation à base d'amine qui solubilise l'additif antimousse insoluble dans l'eau et éventuellement un dispersant pour des compositions à base de ciment.

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