石嘴山电厂粉煤灰在混凝土中的应用研究

Study on the use of fly ash in concrete in Shizuishan Power Plant

采用赛马普通硅酸盐水泥和石嘴山电厂细磨粉煤灰,激发剂,开展了高掺量粉煤灰混凝土的试验研究。分析了粉煤灰混凝土的强度机理.结果表明:粉煤灰掺量为50％时,粉煤灰混凝土的工作性和强度均能满足C20～C30混凝土的要求;粉煤灰掺量≤40％时,粉煤灰混凝土强度明显地优于纯水泥的混凝土.

The application of concrete with high content fly ash is studied, using Saima cement, fine fly ash of Shizuishan Power Plant. The strength mechanism of concrete is also analyzed. The result shows that the capability and strength of concrete with high content fly ash can meet the need of C20 - C30 when the addition of fly ash is 50%, and its strength is obviously superior to pure cement concrete when the addition of fly ash is no more than 40%.