摘要
集料级配不同混合料的工作性能差异很大,马歇尔实验数据也不尽相同。文中就集料级配对马歇尔实验的影响进行了系统试验研究,首先确定了最佳沥青用量,并对击实次数及其对沥青混合料的影响进行研究,由此得知,75次击实比50次击实更能获得综合性能良好的沥青混凝土;对相同击实次数下马歇尔试验各种参数进行分析后可知,细集料含量和集料最大粒径对于各试验指标的影响最为显著。
Performance of aggregate level with different mixtures is different, and Marshall test data also varies. After the Marshall test study, the paper determined firstly the best asphalt content and studied the number of hammer and its effect on the asphalt mixture. It informs that it can get better comprehensive performance of asphalt concrete with 75 times than 50. After the Marshall test analys with the same times, it indicates that fine aggregate content and maximum aggregate size are signifcant for the test index.
出处
《交通科技》
2008年第3期70-72,共3页
Transportation Science & Technology
关键词
集料
级配
马歇尔
实验
aggregate
grading
Marshall
experimental
