级配碎石上基层对寒冷地区高等级公路沥青路面反射裂缝隔断作用的研究

Research on separating action of graded stone upper base cource on reflecting cracking of bituminous pavement in high-class highway in cold zone

通过试验路试验及对比、观测 ,指出用级配碎石材料作沥青面层与半刚性基层间的过度层 ,可产生良好的抗裂作用 。

Through investigation,comparison and observation on testing road,the author indicates:it can produce better anti-cracking action as well as economic effect to use material of graded stone upper base course for transition course between bituminous pavement and semi-rigid base course.