大伙房输水工程长大隧洞衬砌结构自防水混凝土技术研究

Study of self-waterproofing concrete technology in lining structure of the long and big tunnel of Dahuofang water conveyance project

在辽宁省大伙房长大输水隧洞工程设计施工过程中,开展了二次衬砌结构混凝土自防水的技术研究。通过试验,在混凝土中掺入了CSA抗裂防水剂和粉煤灰,现场应用情况证明,该项技术具有良好的防水效果。

This article introduces the study of self-waterproofing concrete of secondary lining structure in the long and big tunnel of Dahuofang water conveyance project, Liaoning. The application shows that adding CSA anti-crack waterproofing agent and flyash to concrete has good waterproofing result.