应用改性沥青提高沥青路面抗车辙能力

Using Modified Asphalt to Improve Anti-Rutting of Asphalt Pavement

由于沥青混合料本身抗剪切变形能力不足,行车渠化严重和夏季高温等原因,高速公路沥青路面的面层沥青混合料较多出现行车道车辙,对行车舒适和安全带来了一定程度的不利影响。沥青面层的车辙受到沥青混合料的沥青结合料、矿料级配、现场碾压等因素的影响。降低沥青标号、采用改性沥青是减少沥青路面车辙的一种有效措施。

Due to the poor resistance to deformation of asphalt mix, high channelization and high repetition traffic, high summer temperature etc, more and more driveway rutting appears in the asphalt mix of the motorway asphalt pavement. Rutting can to some extent have bad influence on the comfort and safety. The rutting of asphalt pavement can be affected by the asphalt binder, aggregate gradation, on-site rolling, etc.. Reducing the mark number of asphalt and adopting modified asphalt is an effective way to reduce the rutting of the asphalt pavement.