内掺钢渣、硅粉的C80高性能混凝土研究

研究了钢渣、硅粉掺量对混凝土强度与流动性的影响以及钢渣、硅粉混凝土强度规律。采用4 2 5普通硅酸盐水泥、中砂、5～ 2 5mm碎石、掺加适量NF 2 6缓凝高效减水剂 ,水胶比 0 2 6 ,钢渣、硅粉掺量均为 10 %或水胶比 0 2 4～ 0 31,钢渣掺量 10 %～ 30 % ,硅粉掺量 15 % ,可配制C80高性能混凝土 ,并给出了混凝土配合比参考公式。

STUDY ON C80 HIGH PERFORMANCE CONCRETE WITH STEEL SLAG AND SILICA FUME

It was studied that the effect of the quantity of steel slag and silica fume on concrete strength and fluidity as well as the rule of the strength of concrete with steel slag and silica fume. Adopting grade 42^5 ordinary portland cement, medium sand, 5～25mm broken stone, proper quantity of NF-2-6 retarding high effect water-reducing agent, water cementitious materials ratio 0^26, 10% of steel salg and 10% of silica fume, or water cementitious materials ratio 0^24～0^31, 10%～30% of steel slag, 15% of silica fume, C80 high performance concrete can be prepared. A reference formula for concrete commercial mix was also given.