摘要
用冷补沥青混合料修补路面坑洞具有方便、快捷等优点,为许多道路工作者所使用。但在多年的使用中经常发现冷补沥青路用性能欠佳,修补后很快出现路面病害。为了探讨级配对冷补沥青混合料性能的影响,采用3种不同矿料级配来配制冷补沥青混合料,并对其进行性能测试,包括初始强度测试、成型强度测试、黏聚性试验、抗水剥离试验、耐水性试验及低温工作性和抗冻性。通过以上室内试验与在实验路上的路用性能相比较,得出矿料级配对冷补沥青混合料路用性能有重要影响。
Cold patch asphalt mixture（CPAM） is used to repair pavement pothole by many highway maintenance workers for convenience and rapidness of CPAM. But the repaired pavement with the CPAM will soon destroy for its bad road use performance. To study the influence of CPAM gradation on pavement performance, three types of mineral gradations CPAM are prepared for the performance experiments, including original strength test, molding strength test, cohesion test, anti-stripping test, water damage resistance test, low temperature workability test, frost resistance test. Through the comparison between the inside test and the outer local experiment pavement, the clousion that the mineral grade of CPAM has important influence on the pavement performance are is drawn.
基金
重庆市交通委员会资助项目(渝交科200637)
关键词
冷补沥青混合料
级配
修补
性能
cold patch asphalt mixture（CPAM）, gradation, repair, performance
