摘要
保水性铺装是一种能缓解城市热岛现象的有效方法。本文实验采用高吸水、保水性矿物质作为吸水材料,制成了新型吸水、保水材料。首先对该材料的吸水、保水及表面蒸发特性进行了测试,可知该材料具有很好的吸水及保水效果;而后,利用该矿物质和木屑作为吸水材料与速硬白水泥混合制成了2种保水性实验材料,并与纯速硬白水泥材料及普通沥青路面铺装材料进行表面蒸发冷却对比实验,结果显示,与沥青铺装材料相比,该矿物质材料具有很好的表面蒸发冷却效果。
The water retention pavement is an effective method to alleviate urban heat island phenomenon. The experiment in this paper adopted super absorbent and water retention minerals as absorbent materials to make a new permeable and water retention material. Firstly, the permeability, water preservation and surface evaporation characteristics of this material were tested, and found that this material had good water absorption and water retention effect. Secondly, accelerated white cement was mixed with an absorbent material composed of this mineral and sawdust to make two types of water retention experimental materials, and then contrast experiments on surface evaporation between pure accelerated white cement and ordinary asphalt pavement materials were carried out. The results indicated that, compared with asphalt pavement materials, the mineral material had better surface evaporative cooling effect.
出处
《建筑科学》
北大核心
2013年第6期79-82,共4页
Building Science
基金
北京市大学生科学研究与创业行动计划项目
关键词
热岛
吸水性
保水性
蒸发量
蒸发冷却
heat island, water absorption, water retention, evaporation capacity, evaporative cooling
