聚丙烯纤维混凝土弯曲疲劳性能

The Concrete Flexural Fatigue Property by Adding Polypropylene Fiber

将聚丙烯纤维掺入普通道路混凝土可以大幅度提高混凝土的弯曲疲劳等路用性能 ,并通过试验建立了聚丙烯纤维混凝土的疲劳方程。结果表明 ,聚丙烯纤维不但能使混凝土的强度提高 ,更主要的是在大应力作用下 ,可成倍地提高混凝土的弯曲疲劳寿命。

Adding polypropylene fiber to cement concrete can increase the concrete pavement performance, improve the flexural fatigue property. The flexural fatigue model of polypropylene fiber concrete is established through tests. Test and analysis results indicate that polypropylene fiber can not only reinforce the stregth of concrete, but also obviously promote the flexural fatigue life by the great stress.