建筑垃圾资源化利用状况及其生命周期评价

Current Status of Reclamation and Life Cycle Assessment in Construction Waste

分析了国内外建筑垃圾资源化利用进展,系统地回顾了近年来生命周期评价在建筑垃圾回收利用中的应用,重点归纳了生命周期方法在道路改扩建中的资源化利用实例.结果表明,生命周期评价可以有效地衡量建筑垃圾资源化过程中造成的环境影响,且在道路工程建设中,废弃物的回收利用可以有效降低建设成本和环境污染.针对我国建筑垃圾现存的问题,提出建筑垃圾资源化发展应从源头控制做起,走产业化发展之路,注重生命周期评价和生命周期管理在建筑垃圾资源化中的应用.

Current reclamation of construction waste both home and abroad is introduced. Moreover, a literature review brings together research on life cycle assessment （LCA） applied within construction waste, especially the road construction sector. By applying LCA it is possible to optimize environmental impacts from the source to the final disposal of waste building materials, and the LCA methodology in road construction would effectively lower the economic and environmental burdens. Concerning the current situations in construction waste reclamation, source minimization, industrial development and life cycle management should be urgently employed.