混凝土板生命周期环境影响的比较研究  

Comparative study of the life-cycle environmental impact of concrete slabs

作　　者：李小冬[1] 孔祥勤[1] 张智慧[1] 韩畅[1] 

机构地区：[1]清华大学建设管理系,北京100084

出　　处：《清华大学学报（自然科学版）》2010年第9期1449-1451,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(50708053);教育部博士点新教师基金资助项目(20070003062)

摘　　要：为客观评价和比较混凝土板的环境影响,选取常用的8种预制混凝土板和现浇混凝土板,基于BEPAS(building environmental performance analysis system)评价系统,通过建立各种混凝土板的投入产出清单和货币化加权评价,得到8种单位体积混凝土板的社会意愿支付(wiliness-to-pay,WTP)值。评价结果表明:预制混凝土板的环境影响社会支付意愿值普遍低于现浇混凝土板,平均低14.5%;固体废弃物和气候变暖是所有混凝土板的主要环境影响类型,占总环境影响的95%左右。从环境保护效果的角度出发,建议优先选取预制混凝土板。The environmental impacts of eight pre-cast and in-situ concrete slabs were evaluated using the building environmental performance analysis system（BEPAS） and the willingness-to-pay（WTP） values per unit volume of various concrete slabs using procedures for establishing input-output inventories and monetary weighting of environmental impact categories.The results show that the WTP value of the pre-cast concrete slabs is lower than that of in-situ concrete slabs（14.5% on average） with the solid waste and global warming costs as the main environmental impact categories for both pre-cast concrete slabs and in-situ concrete slabs,accounting for 95% of the total environmental impacts.Therefore,considering the environmental benefits,priority should be given to pre-cast concrete slabs when choosing concrete slabs.

关 键 词：环境影响评价 生命周期评价 预制混凝土板 现浇混凝土板 

分 类 号：X820.3[环境科学与工程—环境工程]