粉煤灰在水泥和混凝土中应用对改善混凝土细观结构的对比试验研究

Contrastive experiment and research on fly ash to improve concrete submicroscopic structure in cement and concrete

和将粉煤灰直接掺入混凝土中相比,用粉煤灰作为主要混合材的高性能复合水泥来配制混凝土,有更高的早期强度和更好的耐久性能。本文通过扫描电镜观察和压汞试验测定,从混凝土的细观结构对粉煤灰在水泥和混凝土中应用,对混凝土耐久性影响的内在机理进行了研究。

Durability of concrete may be improved when fly ash is mixed with cement or concrete,but the durability of concrete is better when fly ash is put into cement. The mechanism on fly ash to improve concrete submicroscopic structure is studied through the experiments in the paper.