Predictive method of temperature field in asphalt pavement
1.Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao, Shandong 266590, China; 2.School of Transportation Engineering, Tongji University, Shanghai 201804, China
Abstract：To obtain the temperature variation data of asphalt pavement accurately and quickly, the method of predicting temperature field was investigated. The calculating process of asphalt pavement temperature field was modeled by finite element method. The effects of air temperature and solar radiation on temperature characteristic of asphalt layer were discussed. The maximum temperature on pavement surface was expressed by air temperature and solar radiation， and the correlation of maximum temperature between pavement surface and any point in asphalt layer was established by figure and formula. Based on the daily property of temperature field, the temperature was modeled by cosine function with the parameters of time and depth to calculate the temperature during daytime. The results show that the margin of error between predictive value and calculation is less than 0.5 ℃, which can meet the requirements of engineering application completely. The proposed method of predicting temperature field has the advantage of simplicity with high accuracy.
单景松, 郭忠印. 沥青路面温度场的预估方法[J]. 江苏大学学报（自然科学版）, 2013, 34(5): 594-598.
DAN Jing-Song, GUO Zhong-Yin. Predictive method of temperature field in asphalt pavement[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2013, 34(5): 594-598.
2013, Vol. 34 
