石屑在密级配混凝土中的应用研究

Study on Dense Grading Concrete Using Attle

研究了石屑用于普通混凝土的可行性及配合比设计方法。用石屑取代河砂50%,并通过粉煤灰、河砂、石屑和石子等混凝土各组成成分之间的相互填充来实现密级配。采用密级配的方法配制出的混凝土,可以达到节约水泥、降低成本的目的。

The feasibility of using attle in ordinary concrete is studied. 50% sand replaced with attle, a dense-grading system is obtained with fly ash,sand,attle and stone. Concrete manufactured with this method may achieve the purpose of saving cement and lowering costs.