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所属单位：航空学院

发表刊物：WATER

关键字：sponge city permeable pavement Green's function cooling performance

摘要：Permeable pavement is often known as "cool road". However, the cooling performance will be weakened due to clogging. In this paper, the temperature field distribution model of asphalt pavement was obtained by Green's function. Gradations of porous asphalt mixture were designed to obtain different porosities, and the thermal properties of specimens with different porosities were tested and calculated. The simulation test was carried out to obtain the heating curves, which were used to verify the accuracy of the temperature model by comparing the results of the theoretical calculation to results of the test. The daily solar radiation intensity and air temperature changing functions were plugged into the model to calculate the temperature at the bottom of the middle surface. In this way, the simplified model of void fraction and cooling performance of the porous asphalt pavement was obtained. The results showed that the temperature at the bottom of the middle surface for permeable pavement was lower than that for traditional asphalt pavements. The gap was between 0.29 to 2.75 degrees C and it increased as the porosity of permeable pavement increased.

ISSN号：2073-4441

是否译文：否

发表时间：2018-03-01

合写作者：Jia, Sicheng,李骅,F70206484

通讯作者：解建光