HIGH STRENGTH CONCRETE COMPOSITION FOR HIGH-RISE BUILDING

摘要

PURPOSE: A high-strength concrete composition for skyscrapers is provided to increase the production efficiency of ready-mixed concrete, and to maximize the pump ability by decreasing the viscosity of the high-strength concrete. CONSTITUTION: A high-strength concrete composition contains a binder formed with 70~85 parts of cement by weight, 10~20 parts of fly ash by weight, and 4~10 parts of silica fume by weight. The silica fume is a zirconium silica fume. The cement is produced by adding gypsum dehydrate with 1~3wt% of SO3, to a clinker with 0.5~1.5 parts of F-CaO by weight, 6~8 parts of C3A, and 0.4~0.8 parts of SO3 by weight.