Study on Single-Diameter SMA High-Temperature Stability Test
Based on the classical theory, and according to the structural features of SMA(stone matrix asphalt), this paper analyzes the road performance of SMA such as high-temperature stability, etc. The analytical result shows that good road performance of SMA comes from its structural characteristics. Through analysis of SMA design methods adopted in different countries, The tests are carried out in the following procedures: this paper has studied aggregate gradation to ensure which kind of coarse aggregates contributes more for high-temperature stability. The coarse aggregate of equal size is used as sample to do Marshall test (Asphalt compound test) and rutting test. According to the analysis of test results, it is difficult to decide which kind of coarse aggregates does more contribution for hightemperature stability of SMA, and therefore, comprehensive analysis should be made on coarse aggregates of different grades so as to achieve satisfactory result.
high-temperature stability SMA gradation Single-diameter coarse aggregate
Liu-zhonggen xu-xiaodong sun-libin
Jilin institute of architecture and civil engineering Changchun 130021
国际会议
上海
英文
1607-1610
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）