纤维对沥青混凝土性能影响的试验研究

Experimental Study on the Effect of Fiber to Bitulith Function

探讨了纤维对沥青混合料性能改善的原因,分析了纤维增强沥青混合料性能的理论及其在沥青混合料中的作用。纤维的掺入能够大幅的改善沥青混凝土的抗压、抗裂性能,但这些性能的改善并不与纤维掺量成正比,它存在一个合理掺量。当超出合理掺量,沥青混凝土的各项性能反而会下降,甚至低于普通沥青混凝土的性能。

This paper discussed about the reasons of improving performance of fiber to the asphalt mixture, analyzed the fiber-reinforced theory and its performance of asphalt mixture. The introduction of fiber can significantly improve the compression and anti-cracking performance of asphalt concrete ,however ,the steps of improvement are not concerning with the mount of fiber. It means that there is a reasonable amount of it. When beyond the reasonable amount, the performance of asphalt concrete will drop, or even lower than the ordinary.