Masonry, mortar, and stucco cement compositions

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 28/04 (2006.01) C04B 18/08 (2006.01)

Patent

CA 2385606

This invention pertains to a process of making ASTM quality masonry cement, mortar cement, and stucco cement (also called plastic cement) and to the products themselves which are useful in making ASTM quality mortar for masonry construc-tion or ASTM quality stucco for plastering construction. These cements are classified as hydraulic cements and are made using selected pozzolan(s), such as natural pozzolan and fly ashes, Portland Cement, hydrated lime, and an air-entraining agent. Other additives, such as fibers, may be added to further modify its properties. The pozzolans act as functional ingredients in the mix rather than as a filler. As a result, concentrations of greater than 25 wt.% and more pozzolan can be produced.

La présente invention concerne un processus de fabrication de ciment de maçonnerie, de ciment mortier, de ciment à stuc (appelé également ciment plastique) de qualité ASTM et des produits eux même qui sont utiles dans la fabrication de mortiers de qualité ASTM destinés à la maçonnerie ou de stucs de qualité ASTM qui sont utiles au crépissage. Ces ciment sont classés parmi les ciments hydrauliques et sont fabriqués avec des pouzzolanes, telles qu'une pouzzolane naturelle et des cendres volantes, du ciment de Portland, de la chaux éteinte, et un agent d'occlusion. D'autres additifs, tels que des fibres, peuvent être ajoutés de façon à modifier encore les propriétés de ces ciments. Les pouzzolanes jouent plus un rôle de composants fonctionnels dans ce mélange que de matière de charge. A tel point que l'on peut produire des ciment dont les concentrations en pouzzolane sont supérieure à 25 %, voire davantage.

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