随着交通量的日益增长,我省六、七十年代修建的沥青路面已经不能适应运输要求,迫切需要加以改造。在当前沥青材料供应比较紧张的情况下,有效地利用旧沥青面层材料,对节约能源,降低造价和加速旧路改造的步伐,具有现实意义。1986年我们在杭昱线上做了500米再生沥青路面的试验路,1987年扩大试验,又做了7公里,试验过程中基本掌握了设计和施工要领,也初步测算出经济效益。 With the increasing traffic volume, the asphalt pavement constructed in the 1960s and 1970s can no longer meet the transportation requirements and is urgently needed to be rebuilt. In the current situation of tight supply of asphalt material, the effective use of the old asphalt surface material has the practical significance of saving energy, reducing the cost and accelerating the pace of the reconstruction of the old road. In 1986, we made 500 meters of test roads for reclaimed asphalt pavement on Hangyu Line. In 1987, we expanded the test and made another 7 kilometers. During the test, we basically grasped the design and construction essentials and calculated the economic benefits initially.