C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 12/00 (2006.01) C04B 11/30 (2006.01) C04B 28/10 (2006.01)
Patent
CA 2233683
Disclosed is a cement composition, comprising Portland cement or a blended cement, a quick lime powder prepared by pulverizing a quick lime lump consuming 70 to 500 mL of 4N hydrochloric acid, said powder having a Blaine specific surface area of at least 3,000 cm2/g and contained in an amount of 3 to 15% by weight based on CaO, and a sulfate of an alkaline metal in an amount not larger than 10% by weight.
L'invention porte sur une composition de ciment, renfermant du ciment Portland ou un ciment mixte, une poudre de chaux vive, préparée par pulvérisation d'un morceau de chaux vive avec 70 à 500 mL d'acide chlorhydrique 4N; ladite poudre possède une aire spécifique surfacique Blaine d'au moins 3000 cm2/g, dans 3 à 15 % en poids, pourcentage basé sur le CaO, avec une teneur en sulfate de métal alcalin ne dépassant pas 10 % en poids.
Fetherstonhaugh & Co.
Maeta Techno-Research Inc.
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