Cement-based systems using water retention agents prepared...

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 24/38 (2006.01) C04B 28/02 (2006.01)

Patent

CA 2563774

A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a cement based dry mortar composition wherein the amount of the cellulose ether in the tile cement based dry mortar composition is significantly reduced. When this cement based mortar dry composition is mixed with water and applied to a substrate, the water retention, thickening behavior, and/or sag resistance of the wet mortar are comparable or improved as compared to when using conventional similar cellulose ethers.

L'invention porte sur une composition mélangée d'un éther de cellulose fabriquée à partir de linters de coton brut et d'au moins un additif et utilisée dans une composition de mortier sec à base de ciment, la quantité d'éther de cellulose dans la composition de mortier sec à base de ciment de maçonnerie étant sensiblement réduite. Lorsque cette composition de mortier sec à base de ciment est mélangée avec de l'eau et appliquée sur un substrat, la rétention d'eau, la réaction d'épaississement, et/ou la résistance à l'affaissement du mortier humide sont comparables ou améliorées en comparaison avec l'utilisation d'éthers de cellulose similaires habituels.

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