纤维微表处沥青混合料抗水损害性能影响因素研究

Study on the Influencing Factors of Water Damage Resistance of Asphalt Mixture at Fiber Micro Surface

微表处路面在行车荷载和动水冲刷的共同作用下,其路用性能会受到很大的影响。本文深入探讨了聚丙烯纤维微表处沥青混合料抗水损性能的影响因素,着重分析了纤维用量、油石比、纤维长度以及针片状含量对混合料耐磨耗和抗水损性能的影响。研究结果表明,提高油石比能有效减小湿轮磨耗值,从而提升混合料的耐磨耗和抗水损性能。

The performance of micro-surfacing pavement is significantly influenced by the combined effects of traffic loads and dynamic water erosion.This study extensively investigates the impact factors of polypropylene fiber on the water damage resistance of micro-surfacing asphalt mixtures.Specifically,it focuses on analyzing the effects of fiber dosage,oil-stone ratio,fiber length,and needle-like aggregate content on the wear resistance and water damage resistance of the mixtures.The research findings demonstrate that increasing the oil-stone ratio effectively reduces the wear value of the wet wheel,thereby enhancing the wear resistance and water damage resistance of the mixture.