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为防止面板裂缝 ,提高混凝土的质量及耐久性 ,白溪水库二期面板采用聚丙烯纤维混凝土 ,试验研究成果表明 ,掺加聚丙烯纤维可以明显减少混凝土开裂 ,改善混凝土的变形性能和提高耐久性 ,在自然条件下 ,紫外线长期辐射不会造成聚丙烯纤维混凝土性能的退化。聚丙烯纤维混凝土技术性能明显优于普通混凝土 ,增加的少量工程费用与取得的质量效益相比 ,经济上是可以接受的 ,建议在二期面板上应用
In order to prevent the crack of the panel and improve the quality and durability of the concrete, the second phase of the Baixi Reservoir adopts polypropylene fiber concrete. The experimental research results show that the polypropylene fiber can obviously reduce the cracking of the concrete, improve the deformation performance and improve the durability of the concrete Under natural conditions, long-term UV radiation will not cause deterioration of the performance of polypropylene fiber concrete. Polypropylene fiber concrete technical performance was significantly better than ordinary concrete, an increase of a small amount of engineering costs and benefits obtained compared to the economy is acceptable, it is proposed in the second panel application