随着高速公路建设的迅速发展,沥青混凝土路面结构被广泛的应用。但其早期破坏在很大程度上影响了其综合使用性能,如松散、网裂、坑洞等。这些病害都与沥青混合料的离析密切相关。文中以鹤大高速公路建设为依托,着重研究路面离析现象,分析原因并提出减少离析的措施,为高寒山区今后的高等级公路建设起一定的借鉴作用。 With the rapid development of highway construction, asphalt concrete pavement structure is widely used. However, its early damage to a large extent affected its overall performance, such as loose, net cracking, potholes and so on. These diseases are closely related to the segregation of asphalt mixture. Based on the construction of Hedong Expressway, this paper focuses on the analysis of road surface segregation, analyzes the reasons and puts forward the measures to reduce the segregation, which can be used as a reference for the future high-grade highway construction in the alpine mountainous area.