研究了安山岩的路用性能,安山岩内摩阻力大,安山岩表面的孔隙吸收了大量沥青,给安山岩的级配设计和推广使用造成了困难。根据安山岩物理性质的特殊性,提出了针对安山岩的断级配。采用该级配生产的安山岩沥青混合料,具有较好的水稳定性和优异的高温稳定性。在安山岩的推广应用上做了一些探索,以缓解当前某些地区资源紧张的压力,也给其他地区集料和级配的选择增加了可选的范围。 The road performance of andesite was studied. The internal friction of andesite was large, and a large amount of bitumen was absorbed into the pores of the andesite, which made it difficult to design and popularize the grading of andesite. According to the peculiarities of the physical properties of andesite, the grade-grading for andesite is proposed. The andesite asphalt mixture produced by this grade has good water stability and excellent high temperature stability. Some exploration has been done on the popularization and application of andesite in order to relieve the current shortage of resources in some areas and to increase the range of options for aggregate and gradation in other areas.