C50机制砂高性能混凝土在构皮滩乌江大桥中的应用

Application of C50 high performance concrete with manufactured sand in Goupitan Wujiang bridge

结合工程实际情况,采用机制砂,掺部分细砂、不掺粉煤灰配制C50高性能混凝土,并通过优化配合比设计和加强施工控制,解决了构皮滩乌江大桥施工难点,社会经济效益显著。

C50 high performance concrete was mixed with manufactured sands and a fraction of fine sands,without fly ash,according to engineering practice.By optimizing mix proportion design and strengthening construction control, the key of Goupitan Wujiang bridge is solved, the social and economic benefit is prominent.