薄层沥青路面裂缝防治措施研究

Study on Prevention Measures for Thin-layer-asphalt Pavement Crack

在我国,面层裂缝是二、三级公路的主要病害形式,尤其是半刚性基层温缩及干缩引起的反射裂缝。通过对沥青薄层沥青面层下加铺级配碎石、低剂量水稳碎石以及玻纤格栅三种防治反射裂缝方案修筑试验路段,并进行定期跟踪观测和对测试结果进行分析,总结出经济可行的薄层沥青路面防治反射裂缝措施,对工程施工具有重要的实践意义。

The surface crack is one main disease for the second and third highway in our country, especially the reflection crack caused by the dry-shrinking property and the temperature shrinking property of semi-rigid base. An economic and feasible method for cracks prevention of thin-layer asphalt pavement by building test roads with three anti-crack project, which is paving size-distribution gravel, low-dose water stabilized crushed stone and glass-fabric grid under asphalt layer, and supervising and analyzing the test result periodically. This method has high important significance for engineering construction.