机制砂泵送混凝土配合比设计及施工控制

The Crusher Sand Concrete Design and the Construction Control

结合机制砂在内昆铁路老煤洞特大桥普通钢筋混凝土高桥墩施工中的应用,通过大量的对比试验,得出机制砂泵送混凝土配合比的设计要点及施工控制措施,为在缺乏河砂及海砂地区混凝土的配合比设计和泵送混凝土施工提供参考。

Laomeidong bridge has been built in the Neikun railway,which the pumping concrete contained crusher sand is used for steel concrete piles.This article gives the proportion design keys and the construction steps about the crusher sand concrete using various test methods.