夏热冬寒区道路沥青混合料的配合比设计

Mix Ratio Design of Road Asphalt Mixture in Hot-summer Cold-winter Region

沥青混合料配合比设计是沥青路面施工过程中一项十分重要的工作。不同的气候条件、环境条件以及交通量大小对配合比设计的原则和目标均有较大的影响。特别是对于寒区道路沥青路面的配合比设计,在满足混合料低温性能要求的前提下,还要兼顾其高温性能。该文以塘汉快速路的沥青路面配合比设计为实例来讨论寒区道路沥青混合料配合比设计的特点。

The mix ration design of asphalt mixture is a very important work in the course of asphalt pavement construction.The different climate conditions,the different environmental conditions and the different traffic flows will greatly influence the principles and objectives of the mix ratio design.Especially for the nix ratio design of the road asphalt pavement in the cold regions,it will give attention to two or morethings of its high-temperature performance under the premise of satisfying the low-temperature performance requirement of mixture.According to the case of mix ratio design of the asphalt pavement for Tanghan Expressway,the article discusses the characteristics of mix ratio design of road asphalt mixture in the cold regions.