绿色建材基于LCA的环境协调性评价指标体系研究

Environmental Impact Evaluation Index System for Green Building Materials based on LCA

建材工业严峻的环境状况及节能减排工作的日益趋紧,促使绿色建材的研发与评价越来越受到关注。目前,基于全生命周期思想评价建筑材料的环境协调性成为绿色建材评价的主导方向。生命周期分析(LCA)作为评价产品环境协调性影响的国际标准化方法,其应用研究已深入到建材工业体系的各个层面,涉及到建材产品绿色度评价、生态设计、Ⅲ型环境声明(EPD)、碳足迹评价等诸多重要环节,成为支持建材工业节能减排和可持续发展战略的有效工具。本文提出了绿色建材的定义及评价模型、介绍了建材工业LCA的研究、发展现状,并基于中国国情和建材工业发展实际,建立了绿色建材基于LCA的环境协调性评价指标体系,以期为建筑材料乃至建筑物的环境影响评价提供参考。

Building material industry is a high energy-consuming and polluting industry, so it is of great importance to energy-saving and emission-reduction for the building material industry, which advances research and evaluation of green building materials. At present, basing on life cycle thinking is the main direction for environmenta impact assessment of green building materials. Life cycle assessment(LCA) is an international normative method of evaluating environmental impacts. LCA and its application have been deep into the building material industry, involving green-degree evaluation, eco-design, type Ⅲ environmental declaration(EPD), and many other important aspects. This paper brought forward the definition and evaluation model of green building materials, and presented the research and development status of LCA in China building material industry. Furthermore, environmental impact evaluation stytem based on LCA was established so as to provide reference to evaluation of building and building materials, taking into account the situation in China and development conditions of building material industry.