半刚性基层沥青路面反射裂缝形成与防治

Reflection Crack Formation and Prevention of Semi-rigid Asphalt Pavement

对于半刚性基层沥青路面,引起反射裂缝主要的原因是温缩、干缩应力,通过研究行车荷载、温度荷载两种不同作用下造成的破坏模式,提出了防治反射裂缝的有效措施:加厚沥青面层,严格控制半刚性基层的温,干缩性能,在面层和基层之间设置应力吸收层。

For semi -rigid asphalt pavement, reflection crack is mainly caused shrinkage stress. By studying traffic load and temperature load, two kinds of influences, effective measures of preventing reflection crack have been provided ： damage by temperature and dry mode caused by different thicken the asphalt layer, control the temperature and drying shrinkage performance of semi - rigid base strictly, and set stress absorption layer between the surface and base course.