EXPERIMENTAL STUDY ON THE EFFECTS OF WATER SUPPLIED PERMEABLE PAVEMENTS ON THE THERMAL MITIGATION IN SUMMER

Abstract

Field observations for 6 kinds of water supplied permeable pavements and 6 kinds of ordinary asphalt pavements were prepared to evaluate the mitigation effect of urban thermal environment in summer. Permeable pavements were supplied with water every 3 hours in the daytime. Compared with ordinary pavements, permeable pavements has high ability to maintain low temperature just like soil throughout a day with its absorptivity of the supplied water. Evapotranspiration of permeable pavement is equal roughly to evapotranspiration from water surface, and heat balance of pavement can estimate easily by using heat capacity method.