北方地区高速公路沥青路面预防性养护时机初探

Preliminary Approach to Right Moment of Preventative Maintenance of Freeway Asphalt Pavement in North Area

从路面结构强度（弯沉）、路面行驶质量、路面行车安全性能（抗滑系数、车辙）、路表沥青老化四个方面分析了北方地区高速公路沥青路面预防性养护时机的确定方法。

The paper analyzes the methods for determing the right moment of preventative maintenance of freeway asphalt pavement in the Northern Part of the Country from four aspects of pavement＇s structural strength （ deflection） ,running quality of pavement, driving safety of pavement （antiskid coefficient,rut） and aging of mad surface asphalt.