聚丙烯纤维膨胀混凝土预应力结构自防水施工技术

Self-waterproof Construction Technology of Polypropylene Fiber Expansive Concrete and Pre-stressed Structure

深圳南山智谷产业园项目地下室底板采用了聚丙烯纤维膨胀混凝土预应力结构自防水施工技术。该技术通过采用掺加聚丙烯纤维和高性能混凝土膨胀剂的防水混凝土,结合预应力结构施工技术,达到了结构自防水的效果,取消了地下室底板外防水层。本文从该施工技术的防水原理分析出发,以项目案例阐述了该技术的施工工艺要点及实施效果,并总结了该技术的各方面优势,为地下室底板防水施工提供新的研究方向。

The self-waterproof construction technology of polypropylene fiber expansive concrete and pre-stressed structure is adopted in the basement floor of Nanshan Zhigu Industrial Park project.The technology adopts waterproof concrete with PP fiber and HCSA.Combined with the pre-stressed structure construction technology.The self-waterproof effect is achieved and the waterproof layer outside the basement floor was cancelled.In this paper,we analyzed the principle of the waterproof construction technology,expounded the key points and implementation effect of this construction technology with a project case,summarized the advantages of this technology.It provides a new research direction for basement floor waterproofing construction.