Federal University of Itajubá, Brazil.
Waste Manag Res. 2020 Jul;38(7):762-772. doi: 10.1177/0734242X20906886. Epub 2020 Feb 26.
Construction waste is generated during construction and remodelling undertakings. Construction waste management (CWM) is a challenge in developing countries such as Brazil. Thus, it is necessary to create tools by which CWM may be evaluated. This article presents the elaboration of a tool to assess CWM in Brazilian cities; moreover, this method facilitates such analyses in regions which lack substantial quantitative data. In doing so, the tool, known as the Assessment Index for Construction Waste Management (ICWM), combines quantitative and qualitative information and is composed of 49 indicators and 19 criteria divided into the following groups: operational; environmental; politico-economic, educational; and social. The analytic hierarchy process was used to assign the weights attributed to the groups and criteria to build the index. The indicators were measured according to a standardized rating scale proposed for each one. These elements were aggregated in a mathematical formula that enables the calculation of the ICWM. The aggregation method used was a weighted linear combination, and the index is rated on a 0 to 1 scale. The ICWM was tested in four municipalities. In all cases, the management was considered inefficient. The proposed tool proved to be effective in evaluating the CWM. In cities where the ICWM was tested, it was possible to identify the significant deficiencies of the CWM and recommend improvement actions to develop more efficient and sustainable management.
建筑废物是在建筑和改造工程中产生的。在巴西等发展中国家，建筑废物管理（CWM）是一项挑战。因此，有必要创建一些工具来评估 CWM。本文介绍了一种用于评估巴西城市 CWM 的工具的编制方法；此外，该方法还便于在缺乏大量定量数据的地区进行此类分析。为此，该工具称为建筑废物管理评估指数（ICWM），它结合了定量和定性信息，由 49 个指标和 19 个标准组成，分为以下几个组：运营、环境、政治经济、教育和社会。层次分析法用于为组和标准分配权重，以构建指数。根据为每个指标提出的标准化评分量表来衡量指标。这些元素被聚合在一个数学公式中，以计算 ICWM。使用的聚合方法是加权线性组合，指数的评分范围为 0 到 1。ICWM 在四个城市进行了测试。在所有情况下，管理都被认为是低效的。所提出的工具在评估 CWM 方面被证明是有效的。在所测试的城市中，能够确定 CWM 的显著缺陷，并建议采取改进措施，以发展更有效和可持续的管理。
