掺加玄武岩纤维的沥青混合料性能试验研究

Experimental Study on the Performance of Asphalt Mixture with Basalt Fiber

为提高高速公路沥青路面的力学强度与使用耐久性,延长路面使用寿命,采用车辙试验、小梁弯曲试验、浸水马歇尔稳定度试验以及冻融劈裂强度试验研究了玄武岩纤维对沥青混合料性能的影响,并以木质素纤维作为对比。结果显示:玄武岩纤维对沥青混合料高温抗变形性能、低温抗开裂性能以及抗水损害性能的改善效果均优于木质素纤维。

In order to improve the mechanical strength and durability , and to extend the service life of asphalt pavement, the effect of basalt fiber on the performance of asphalt mixture was studied by rutting test, bending test of small beam, test of immersion Marshall stability and freeze - thaw splitting strength test in this paper. And compared with asphalt within lignin fibrer. The results showed： the improvement effect of high temperature distortion resistance, low temperature anti - cracking performance and anti - water damage performnce of asphalt mixture with basalt fiber was better than that of lignin fiber.