超薄磨耗层SMA-10矿料级配比较试验研究  

Comparison Testing Study on Mineral Aggregate Gradation of Ultra-Thin Friction Course SMA-10

作　　者：南雪峰[1] 

机构地区：[1]辽宁省交通科学研究院,沈阳市110015

出　　处：《公路》2008年第12期160-164,共5页Highway

基　　金：辽宁省交通厅资助项目;项目编号200619

摘　　要：针对超薄磨耗层SMA-10矿料级配,在现行技术规范提供的级配范围基础上,以2.36 mm作为关键控制筛孔,设计了13种SMA-10级配;采用旋转压实法成型混合料试件,测试并计算混合料的体积指标,对比分析关键体积指标与2.36～4.75 mm集料含量之间的关系。研究结果表明,当2.36～4.75 mm集料含量为0～8%或20%～28%时,所获得SMA-10混合料的体积指标更容易满足超薄磨耗层的技术要求。According to mineral aggregate scope recommended by current technical criterion, aiming at ultra-thin friction course SMA-10, 13 kinds of gradation of SMA-10 are designed with 2.36 mm sieve passing ratio as crucial control point. The relationship of 2. 36-4.75 mm aggregate content and crucial volume index is contradistinctively analyzed, by using gyratory compaction to making mixture specimen, the volume index of the specimen is tested and calculated. The results show that the desirable volume index of SMA-10 mixture in technical criterion about ultra-thin friction course can be contented easily when the aggregate content of 2.36-4.75 mm is 0-8% or 20-28%.

关 键 词：道路工程 超薄磨耗层 SMA 旋转压实法 矿料级配 

分 类 号：U414.11[交通运输工程—道路与铁道工程]