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| Adaptability of asphalt pavements to high temperature and large temperature difference in southern Xinjiang |
| 1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang′an University, Xi′an, Shaanxi 710064, China; 2. China Communications Construction Company Highway Consultants Co., Ltd., Beijing 100010, China |
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Abstract To analyze the adaptability of asphalt pavements to high temperature and large temperature difference in southern Xinjiang and control distresses due to high temperature, the STR1 commonly used in Xinjiang, STR2 and STR3 used in other areas in China were selected. The temperature fields and the loadtemperature coupled fields were simulated under the condition of 4th July, 2008. The results show that compared with air temperature， the structural temperature shows obvious timelag with the increasing of depth. The thick asphalt surface course can effectively reduce the temperature influence on base course. The simulation results of loadtemperature coupled fields shows that the STR3 with compound base course has the best adaptability to high temperature and large temperature difference in southern Xinjiang.
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2017, Vol. 38 
