纤维微表处沥青混合料抗车辙性能影响因素研究  

Study on the Influencing Factors of Rutting Resistance of Asphalt Mixture at Fiber Micro-surface

作　　者：陈伟东 李永坤 黄汉东 陈雄峰 CHEN Weidong;LI Yongkun;HUANG Handong;CHEN Xiongfeng(Fujian Provincial Expressway Group Co.,Ltd,Fuzhou Fujian 350000,China;Fujian Zhangzhou Expressway Co.,Ltd,Zhangzhou Fujian 363000,China;Fujian Quanxia Expressway Management Co.,Ltd,Xiamen Fujian 361000,China)

机构地区：[1]福建省高速公路集团有限公司,福建福州350000 [2]福建省漳州高速公路有限公司,福建漳州363000 [3]福建泉厦高速公路管理有限公司,福建厦门361000

出　　处：《交通节能与环保》2024年第4期197-200,共4页Transport Energy Conservation & Environmental Protection

摘　　要：本研究深入探讨了纤维微表处沥青混合料抗车辙性能的影响因素,旨在为微表处沥青混合料设计与施工提供科学依据。通过综合分析纤维种类、纤维掺量及级配对微表处沥青混合料抗车辙性能的影响,发现聚丙烯纤维相较于玄武岩纤维,显著提升了抗车辙性能,特别是当纤维掺量达到0.2%时,混合料表现出最佳性能。研究还指出,适宜的级配和针片状含量对优化混合料抗车辙性能至关重要,较粗的级配和较低的针片状含量在一定程度上能增强混合料的抗车辙性能。In this study,the influencing factors of rutting resistance of asphalt mixture at fiber micro-surface were deeply discussed,aiming to provide a scientific basis for the design and construction of asphalt mixture at micro-surface.Through the comprehensive analysis of the effects of fiber type,fiber content and grade pairing on the rutting resistance of asphalt mixture at the micro-surface,it was found that polypropylene fiber significantly improved the rutting resistance compared with basalt fiber,especially when the fiber content reached 0.2%,the mixture showed the best performance.The study also pointed out that appropriate grading and needle flake content are very important to optimize the rutting resistance of the mixture,and the coarser gradation and lower needle flake content can enhance the rutting resistance of the mixture to a certain extent.

关 键 词：道路工程 混合料 微表处 抗车辙性能 轮宽变化率 

分 类 号：U416.2[交通运输工程—道路与铁道工程]