Compressive strength improvement of cement and gypsum products

Details Compressive strength improvement of cement and gypsum products Compressive strength improvement of cement and gypsum products

H - Electricity

01

R

H01R 9/05 (2006.01)

Patent

CA 2643995

The invention relates generally to a cement or gypsum composition having improved properties, which is prepared by incorporating an enzyme into a cement material such as a cement, mortar, or concrete, or into a gypsum product. The invention also relates to methods of manufacturing improved cement compositions and gypsum products, methods of improving the compressive strength of cement compositions and gypsum products, and methods of reducing the cost of such compositions by enabling the use of less expensive aggregates in the manufacturing process. More specifically, the invention relates to a cement composition or a gypsum composition, optionally including at least one aggregate and optionally including at least one pozzolan, comprising a cement material or gypsum optionally including aggregate(s) and pozzolan(s) having blended therein an enzyme.

L'invention concerne, d'une manière générale, une composition de ciment ou de plâtre possédant des propriétés améliorées et préparée par incorporation d'une enzyme dans un matériau de ciment, tel que du ciment, du mortier ou dans un produit de plâtre. L'invention concerne également des procédés de fabrication de compositions de ciment améliorées et des produits de plâtre améliorés, des procédés permettant d'améliorer la résistance à la compression de compositions de ciment et de produits de plâtre et des procédés permettant de réduire le coût de telles compositions, des agrégats moins onéreux étant utilisés dans le procédé de fabrication. Plus précisément, l'invention concerne une composition de ciment ou une composition de plâtre, comprenant éventuellement au moins un agrégat et au moins une pouzzolane, comprenant un matériau de ciment ou du plâtre possédant éventuellement des agrégats et des pouzzolanes dans lesquels une enzyme est mélangée.

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