沥青混合料骨料破碎程度影响因素分析

摘要

选取了广东地区常见的凝灰岩、辉绿岩、花岗岩三种石料,采用SMA-13与AC-13两种级配类型,通过分析75次、150次、300次三种马歇尔击实次数的沥青混合料在不同筛孔的级配分布变化规律,得出了影响沥青混合料骨料破碎程度的主要因素,为沥青混合料配合比设计和施工过程质量控制提供参考.%The paper selects the common three stone materials including tuff,diabase and granite in Guangdong Area,adopts two aggregate grading types of SMA-13 and AC-13,and concludes the main factors affecting the aggregate degradation of asphalt mixture aggregate by analyzing the 75-time,150-time and 300-time Marshall compaction asphalt mixtures in the changing law for the grading distribution of the various sleve mesh,so as to provide some reference for the proportional ratio design for the asphalt mixture and quality control of the construction process.