摘要
细集料的质量直接影响着沥青混合料的质量，评价细集料的两个关键指标就是砂当量和亚甲蓝。首先介绍了国外关于细集料的砂当量和亚甲蓝试验方法和技术指标的情况，然后进行了不同规格的细集料的砂当量和亚甲蓝试验，最后对目前细集料的砂当量和亚甲蓝不同试验方法和技术标准进行了分析，并提出了我国沥青混合料O～2．36mm细集料亚甲蓝的技术指标的建议。
It is important to determine whether the clay materials in fine aggregates are harmful to the performance of the asphalt mixtures. The Sand Equivalent test and the Methylene Blue test are two key laboratory tests to evaluate clay materials in fine aggregates. Firstly, a reference is being made to the two tests and to specification requirements used by international standards. Secondly, relevant test results are presented from a significant number of fine aggregates. The results show that the specification requirements of Methylene Blue of 0～2.36 mm fine aggregates for asphalt mixtures should be modified.
出处
《公路》
北大核心
2010年第4期152-157,共6页
Highway
关键词
技术指标
砂当量
亚甲蓝
细集料
沥青混合料
specification requirements
Sand Equivalent
Methylene Blue
fine aggregates
asphaltmixtures
