SMA-13沥青混合料合成级配9.5 mm筛孔通过率对其抗滑性能影响规律分析  

Analysis of the Influence Law of 9.5 mm Sieve Passing Rate of SMA-13 Asphalt Mixture Synthetic Gradation on its Anti-skid Performance

作　　者：朱勇强[1] 刘锋 许新权 饶志勇 ZHU Yongqiang;LIU Feng;XU Xinquan;RAO Zhiyong(Guangdong Guanyue Highway&Bridge Co.Ltd.,Guangzhou 510000,China;Guangdong Hualu Transport Technology Co.LTD.,Guangzhou 510420,China;Research and Development Center on Road Transport Safety and Emergency Support Technology&Equipment,Ministry of Transport,Guangzhou 510420,China)

机构地区：[1]广东冠粤路桥有限公司,广州510000 [2]广东华路交通科技有限公司,广州510420 [3]公路交通安全与应急保障技术及装备交通运输行业研发中心,广州510420

出　　处：《武汉理工大学学报（交通科学与工程版）》2023年第2期334-337,342,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：广东省科技计划项目(2018B020207003);广东省基础与应用基础研究基金(2022A1515011326)。

摘　　要：文中根据SMA-13最佳油石比,以规范要求的SMA-13级配上下限为界,以3%~4%的间隔,控制9.5 mm筛孔通过率从50.3%~73.4%,对成型的八个车辙板试件开展构造深度试验TD、摆值试验BPN和渗水试验,获得了SMA-13室内抗滑性能随9.5 mm筛孔通过率变化的回归关系.而后通过试验路的铺筑验证了相关结论的正确性.结果表明:9.5 mm筛孔通过率越大的SMA-13,其SFC和BPN越大,TD和渗水系数Cw越小.在保持SMA13其它筛孔通过率相同的情况下,9.5 mm筛孔通过率介于50%~64.2%,可形成SMA-13骨架-密实结构,且其合成级配9.5 mm筛孔通过率与其抗滑性存在线性相关性.According to the optimum asphalt-aggregate ratio of SMA-13,taking the lower limit of SMA-13 grade as the boundary,and controlling the passing rate of 9.5 mm sieve hole from 50.3%to 73.4%at the interval of 3%to 4%,the structural depth test TD,pendulum value test BPN and infiltration test were carried out on eight formed rutting plate specimens,and the regression relationship between the indoor anti-sliding performance of SMA-13 and the passing rate of 9.5 mm sieve hole was obtained.Then the correctness of the relevant conclusions was verified by paving the test road.The results show that the greater the passing rate of 9.5 mm mesh,the greater the SFC and BPN of SMA-13,and the smaller the TD and the water permeability coefficient C w.Under the condition of keeping the passing rate of other SMA13 sieve holes the same,the passing rate of 9.5 mm sieve holes is between 50%and 64.2%,which can form SMA-13 skeleton-dense structure.And there is a linear correlation between the pass rate of 9.5mm sieve hole and its skid resistance.

关 键 词：道路工程 SMA-13 抗滑性能 9.5 mm筛孔通过率 

分 类 号：U416[交通运输工程—道路与铁道工程]