玄武岩纤维改性透水沥青混合料路用性能影响研究

Study on the Influence of Basalt Fiber Modified Pervious Asphalt Mixture on Road Performance

文中根据析漏损失率及飞散损失率与油石比的演变规律,确定透水沥青混合料在路用性能方面的最佳配制比例,以该混合料在不同稳定条件下的性能平衡原则为基础,对其中玄武岩纤维的掺加量进行调整,最终得到路用性能最佳的玄武岩纤维掺量。结果表明,最佳油石比会随着纤维掺量从0提升到2%而逐渐降低,结合玄武岩纤维改性透水沥青混合料高低温性能,确定最佳纤维掺量为1%。

In order to alleviate the problem of urban waterlogging,the evolution law of leakage loss rate,fly-away loss rate and oil-stone ratio is used to determine the best proportion of pervious asphalt mixture in road performance,based on the performance balance principle of the mixture under dfferent stability conditions,the amount of basalt fiber is adjusted to get the best amount of basalt fiber.The results indicate that the optimal oil stone ratio will gradually decrease as the fiber content increases from O to 2%.Combined with the high and low temperature performance of basalt fiber modified permeable asphalt mixture,the optimal fiber content is determined to be 1%...