机制砂配制自密实微膨胀混凝土的研究

Preparation of Self-compacting Expensive Concrete by Machine Made Sand

在综合国内外自密实混凝土和机制砂混凝土研究的基础上,利用本地原材料,通过掺加掺合料、膨胀剂、减水剂配制出自密实微膨胀混凝土。试验结果表明:混凝土拌合物的坍落度、扩展度能满足自密实性能要求,抗压强度达到自密实混凝土的设计指标。

With the investigation of self-compacting concrete and the man-made sand concrete, we produce the self-com- pacting expensive concrete that added by the mineral admixture, expensive admixture and water reducing admixture with the raw materials of the local place. And the result shows that both the workability and the strength can meet the requirements of self-compacting concrete.