半柔性路面材料性能研究及其在重载交通道口的应用  

Research on Properties of Semi-flexible Pavement Materials and its Application in Heavy-load Traffic Crossing

作　　者：朱剑南[1] 熊子佳 刘子炀 龚明辉 邓成 ZHU Jian-nan;XIONG Zi-jia;LIU Zi-yang;GONG Ming-hui;DENG Cheng(Jiangsu Research Institute of Building Science Co.,Ltd,Nanjing Jiangsu 210000 China;Jiangsu Sobute New Materials Co.,Ltd,Nanjing Jiangsu 210000 China)

机构地区：[1]江苏省建筑科学研究院有限公司,江苏南京210000 [2]江苏苏博特新材料股份有限公司,江苏南京210000

出　　处：《江苏建筑》2021年第3期95-97,共3页Jiangsu Construction

基　　金：国家自然科学基金面上项目(52078241);广西道路结构与材料重点实验室开放课题(2020gxjgclkf006)。

摘　　要：文章基于半柔性路面材料,与普通的沥青混合料进行对比分析,研究了其在重载交通道口的路用性能。结果表明,半柔性路面材料在相同时间内产生的车辙深度仅为普通沥青混合料的27%,动稳定度值约为普通沥青混合料的14倍。70℃动稳定度达到13404次/mm;低温抗弯拉强度和弯曲劲度模量约为AC13的1.3倍,最大变拉应变与之相当;冻融劈裂抗拉强度比为93.73%,高于普通沥青混合料AC13的强度比。工程应用表明,半柔性路面的车辙为磨耗型车辙,仅为5.5 mm。表面构造深度为0.82 mm,抗滑值为54,具有优异的路用性能。This research studied the road performance of semi-flexible pavement material by comparing with ordinary asphalt mixture,and an engineering application was constructed at heavy-load traffic crossing.The results show that the rut depth generated by the semi-flexible pavement material in the same time is only 27%of that of the ordinary asphalt mixture,and the dynamic stability value is about 14 times that of the ordinary asphalt mixture.The dynamic stability at 70℃reaches 13404 times/mm;the low-temperature bending tensile strength and bending stiffness modulus are about 1.3 times that of AC13,and the maximum variable tensile strain is equivalent;the freeze-thaw splitting tensile strength ratio is 93.73%,which is highCompared with the strength ratio of common asphalt mixture AC13.Engineering application shows that the rut of the semi-flexible pavement is abrasion type rut,which is only 5.5mm.The surface texture depth is 0.82 mm,and the anti-skid value is 54.It has excellent road performance.

关 键 词：半柔性路面 重载交通 路用性能 车辙 

分 类 号：TU416.221[建筑科学—岩土工程]