| Abstrakt: |
Through the outdoor test, the temperature fields of the flexible base layer, the semi -rigid base layer and the inverted base asphalt pavement under high temperature and rainy conditions were measured respectively, and the temperature field of the flexible base asphalt pavement was simulated by mathematical methods. The results show that the temperature field difference of the three pavement layers is very small, and the temperature field difference increases with the increase of depth. The temperature of the three pavement base layers from large to small is: flip-chip structure>flexible structure>semi-rigid structure. The order of the base layer temperature from large to small is: flexible structure >flip -chip structure >semi -rigid structure. The temperature field of the flexible base asphalt pavement has periodic variation with the temperature and solar radiation. With the increase of the depth, the time -temperature curve shows obvious hysteresis, and the corresponding temperature peak decreases gradually. The temperature field of the flexible base asphalt pavement can be expressed by the decay exponential function model. [ABSTRACT FROM AUTHOR] |
