聚丙烯长纤维混凝土的抗弯曲韧性试验研究

The experimental study on the anti-bending flexural toughness for the polypropylene long fiber concrete

对不同组纤维混凝土梁进行弯曲韧性试验研究,结果表明,掺加任何类型的纤维均可以提高混凝土的弯曲韧性;聚丙烯长纤维不论是单掺还是与钢纤维混掺,其掺量为5kg/m3时,混凝土的弯曲韧性性能提高最大,并且其弯曲韧性增强效果表现出正的混杂效应。

The paper studies the flexural toughness experiments of fiber concrete in different groups. It is proved that the mixture of any type of fiber can improve the flexural toughness of the concrete, the polypropylene long fiber concrete, whether single mixture or being mixed with steel fiber, the flexural toughness performance can be maximal when the mixture amount is 5 kg/m^3 and the hybrid effect of the flexural toughness is positive.