石灰石粉在复合胶凝材料水化中的作用机理

将石灰石粉用作水工混凝土矿物掺合料,不仅能改善混凝土的性能,而且能降低工程造价,是绿色混凝土的重要发展方向之一。文章介绍了当前国内外在石灰石粉应用方面的研究概况及存在的不足;通过微观研究,得出石灰石粉在复合胶凝材料水化中的三大作用机理:填充效应、活性效应和加速效应;最后,提出石灰石粉应用研究中丞待解决的问题,指出还需继续开展的研究工作重点。

Action Mechanism of Limestone Powder in Hydration of Complex Binder

Limestone powder can be used as the mineral admixture in hydraulic concrete,which can not only improve the properties of the concrete,but also can decrease the cost of the construction.The appliance of the limestone powder in concrete is one of the most important directions of green concrete.In this paper,we point out the shortage of the study on the appliance of limestone powder.And after the micro-study,we get the three action mechanism of limestone powder during the hydration of complex binder:filling effect,active effect and accelerating effect.Finally,we point out the problem that should be study further in the future.