一、北京市近年来沥青路面损坏情况北京市城区和近郊区目前有沥青路面约1663万平方米,其中沥青混凝土路面占65％以上。按规范要求,沥青混凝路面使用年限为15年,但近年来修筑的沥青路面早期损坏比较严重,之中又以早期开裂比较突出。所谓早期损坏,是指道路竣工后2～3年甚至 I. Beijing asphalt pavement damage in recent years Beijing urban and suburban areas currently have about 16.63 million square meters of asphalt pavement, asphalt pavement which accounted for more than 65%. According to the requirements of the specification, the service life of asphalt concrete pavement is 15 years. However, the early damage of asphalt pavement constructed in recent years is serious, and the early cracking is more prominent among them. The so-called early damage, refers to the road after the completion of 2 to 3 years or even