粗橡胶粒作为集料的沥青混凝土配合比设计

Design of Mixture Ratio of Coarse Crumb-rubber as Aggregate Asphalt Concrete

该文通过对粗橡胶粒沥青混凝土存在的问题和性能需求分析,提出粗橡胶粒的技术要求,并进行了相应的混合料级配研究,提出合理的级配范同。在此基础上,文章提出了合理的粗橡胶粒掺量范围,并通过车辙、水稳定性等性能试验验证了混合料设计的合理性。

The article analyzes the problems and the performance requirements of coarse crumb-rub- berized asphalt concrete,puts forward the technical requirements of coarse crumb-rubber and carries out the relative study of the mixture gradation to put forward the reasonable gradation range.On this basis,the article puts forward the reasonable mixing range of coarse crumb-rubber,and identifies the design reasonableness of mixture through the performance tests of the rut and the water stability etc.