聚丙烯纤维在特细砂混凝土中的研究应用

On the application of the polypropylene fiber in the special fine sand concrete

为使特细砂混凝土满足溢洪道堰体表面高性能要求,对掺聚丙烯纤维的特细砂混凝土抗裂、抗冻、抗渗等性能进行了研究,找出了聚丙烯纤维在满足各项技术性能和经济性要求下的最佳掺量及掺量对技术指标的影响规律,为聚丙烯纤维在特细砂混凝土中的应用提供了借鉴。

In order to make the special fine sand concrete meet the high performance requirements of the spilling weir body, the paper studies on the impermeability, the frost resistance and cracking resistance of the special fine sand concrete mixed with the polypropylene fiber, finds out the best percentage of the polypropylene fiber which can satisfy all kinds pf technological features and economic requirements and the influence rules of the percentage on the technical parameter, and provides the reference for the application of the polypropylene fiber in the special fine sand concrete.