自防水混凝土在城市地下结构工程中的应用

Application of Self-Waterproof Concrete in Urban Underground Structures

城市地下结构根据其使用功能对防渗性能有一定的要求。结合实践总结出一种掺加防水添加剂的自防水混凝土并将其直接应用于城市地下结构工程的浇筑,从配合比设计验证、施工工艺、质量控制、应用效果等方面介绍了这种新型自防水混凝土,其防渗效果优于普通C40P8混凝土外包防水卷材且较为经济,可为类似工程施工提供借鉴。

Urban underground structures have certain requirements for seepage resistance according to their functions.This paper proposes,based on engineering practice,a kind of self-waterproof concrete which can be directly applied in urban underground structures.From the aspects of mix design verification,construction technology,quality control and performance,this paper expounds that the new self-waterproof concrete has better anti-seepage effect than ordinary C40P8 concrete waterproof-coiled material and is more economic.This paper provides a reference for similar projects.