碎石砂在商品混凝土中的应用研究

Application Research of Macadam Sand in Commodity Concrete

着重针对碎石生产中产生的副产品——— 0～ 5mm石屑 ,经试验确定与天然细砂的合理混合比例 ,通过工程实践证明 ,混掺后的碎石砂用来替代黄砂 ,能配制出高强、高泵程。

In this article, authors introduce 0～5 mm rock chip, which is the co product of macadam, and determined the proper ratio between this rock chip and natural fine sand. The project practices indicated that this mixed macadam sand could substitute yellow sand to prepare high strength, long pumping distance and large liquidity commodity concrete.