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保水性铺装是一种通过表面蒸发冷却来有效降低铺装表面温度的方法,可以缓解城市热岛现象。保水材料的种类不同,效果各异,若进行室外蒸发冷却实验会受到气候条件的制约。本文以日光灯模拟太阳照射,制作了室内蒸发冷却实验装置,并针对此装置的可行性进行了实验及数值计算分析。而后,应用此装置进行了实验,分析了开粒度沥青表面铺装材料和具有吸水/保水性沥青表面铺装材料的表面蒸发冷却效果。
Water-retentive paving is a method of effectively reducing pavement surface temperatures by evaporative cooling of the surface, which can alleviate the urban heat island phenomenon. Water-retaining materials of different types, the effect is different, if the outdoor evaporative cooling experiment will be subject to climatic conditions. In this paper, a fluorescent lamp was used to simulate the solar radiation, and a laboratory evaporative cooling device was made. Experiments and numerical calculations were carried out according to the feasibility of the device. After that, the experiment was carried out by using this device, and the effect of surface evaporation cooling on open-graded asphalt surface paving materials and asphalt surface paving materials with water-absorbing / water-retaining properties was analyzed.