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探讨了聚丙烯短纤维掺入普通混凝土中改善其抗冲击、抗冻等性能的作用机理,结合实例介绍了聚丙烯纤维砼在桥面连续及伸缩缝处的应用及其配合比设计与施工工艺。
The mechanism of polypropylene staple fiber blended into common concrete to improve its impact resistance, frost resistance and other properties was discussed. The application of polypropylene fiber reinforced concrete in continuous and expansion joints of bridge deck and the design and construction technology of mixing ratio .