石灰石粉和粉煤灰对复合胶凝材料性能的影响

Influence of Limestone Powder and Fly Ash on the Performance of Complex Binder

研究了石灰石粉和粉煤灰对复合胶凝材料性能的影响。试验结果表明,石灰石粉具有比粉煤灰更好的减水效应;在石灰石粉-粉煤灰-水泥三元复合胶凝材料中,石灰石粉和粉煤灰掺量相同时,其复合胶凝材料的早期强度比粉煤灰高,而后期更低,但两者复合时,强度仍更高。

In this testing research, we designed a series of mortar mix proportions and studied the influence of limestone powder and fly ash on the performance of complex hinder. The testing results showed that limestone powder has better water reducing effect than fly ash; as for the limestone powder-fly ash-cement complex binder, the complex containing limestone powder has highercompressive strength than that containing fly ash at early age, but lower at later age, and when they added at the same time, its strength will improve further.