摘要
通过室内试验成型了AC-13沥青混合料车辙板试件,借助室内加速磨耗试验模拟了沥青路面在行车荷载作用下的磨损行为。测试车辙板试件加速磨耗前后抗滑值和构造深度的变化,分析了环境温度和加载次数对沥青路面抗滑性能的影响。借助扫描电镜对回收集料的表面微观形貌进行了观测。结果表明:温度对沥青路面抗滑性能的衰减具有显著的影响;抗滑值和构造深度的变化与加速磨耗次数具有良好的相关关系。
Rutting plate specimens for AC-13 asphalt mixture were formed through laboratory tests. With indoor accelerated wear test, wear behavior of asphalt pavement under traffic loads was simulated. The changes of rutting plate specimens＇ skid resistance value and texture depth before and after the accelerated wear were tested, and the impact of ambient temperature and load times on the skid resistance performance of asphalt pavement was analyzed. Surface microtopography of the collected aggregate was observed with scanning electron microscope. The results show that the temperature has a significant influence on the decay of the skid resistance performance, and there＇s a correlation between the accelerated wear times and the changes in skid resistance value and texture depth.
出处
《筑路机械与施工机械化》
北大核心
2016年第1期71-74,共4页
Road Machinery & Construction Mechanization
关键词
沥青路面
抗滑性能
粗集料
电镜扫描
asphalt pavement
skid resistance performance
coarse aggregate
scanning electron microscope
