沥青混凝土生命周期环境影响评价研究  

Life cycle environmental impact assessment of asphalt concrete

作　　者：贾晓娟[1,2] 赵丽 余剑英[1] 高丽[1] 徐松[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,湖北武汉430070 [2]葛洲坝武汉道路材料有限公司,湖北武汉430070 [3]锡林郭勒盟公路车辆通行费管理处,内蒙古锡林浩特026000

出　　处：《新型建筑材料》2014年第11期26-28,45,共4页New Building Materials

基　　金：国家"863"高技术研究发展计划(2013AA031602)

摘　　要：沥青混凝土在生产、铺筑和废弃过程中会消耗大量的自然资源和能源,因此有必要对其开展生命周期环境影响评价。采用生命周期评价方法,对沥青混凝土生命周期过程中的资源、能源消耗及污染物排放进行了评价。结果表明,沥青混凝土生命周期中能耗最大的是拌和过程,环境负荷影响类型重要性的大小依次为:不可再生资源>温室效应>酸化效应>光化学烟雾>人体健康损害;不同生产阶段的环境影响大小依次为:原材料生产过程>运输过程>拌和过程>废弃过程>摊铺压实过程。It has spent a mass of natural resources and energy during the process of production,paving and comnaction as well as abandoning of asphalt concrete,therefore it is necessary to make life cycle environmental impact assessment of asphalt concrete. In this paper, life cycle assessment is used to evaluate the resource,energy consumption and pollutant emission in the life cycle of asphalt concrete. The results show that the process with the most energy consumption takes place in the stage of blending asphalt concrete. The significance order of environmental load impact types of asphalt-concrete is as follow：resource depletion〉 global warming potential〉acidification potential〉photo-oxidant formation potential〉human health. The environmental impact order of different production stages is as follow： the process of exploiting raw materials〉transportation process〉process of blending〉process of abandoning〉process ofpaving and compaction.

关 键 词：沥青混凝土 生命周期评价 环境影响 

分 类 号：TU528.042[建筑科学—建筑技术科学]