首页>
外国专利>
Cement Admixture for high strength, shrinkage-reducing and cold-construction, and cement composite incorporating the admixture
Cement Admixture for high strength, shrinkage-reducing and cold-construction, and cement composite incorporating the admixture
展开▼
机译:用于高强度,减缩和冷施工的水泥外加剂,以及掺入该外加剂的水泥复合材料
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: Provided are a cement admixture with high strength, low shrinkage and low temperature application, and a cement composition with much improved initial strength, longtime strength and durability compared with portland cement by mixing cement with the prepared admixture. CONSTITUTION: The admixture comprises 75-100wt.% Al2(SO4)3 as a main material, 0-10wt.% of Na2CO3, 0-10wt.% of NaAlO2, 0-25wt.% of CaCl2, 0-15wt.% of limestone, and 0-5wt.% of magnesium fluosilicate, where the all materials have a specific surface area of 2000cm¬2/g or more, except limestone with a specific surface area of 5000cm¬2/g or more. Also, the cement admixture is prepared by adding 1-10wt.% of the prepared admixture to conventional cement such as portland cement, high early-strength portland cement, fly ash cement or blast furnace slag cement.
展开▼