循环经济成熟度:我们的建筑产品有多循环?

Amy Egerter, Julia Koehler, Cosmina Oltean, Daniel Hall, Christian Thuesen
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引用次数: 0

摘要

循环经济(CE)的概念已在建筑行业获得了发展,以减轻气候变化的影响,并使经济增长与环境影响脱钩。有关特定建筑材料以及整个建筑的循环性的研究越来越多。然而,人们对建筑产品层面仍然缺乏了解,这种缺乏透明度的情况阻碍了人们在项目中选择使用哪些产品以及这些产品如何支持循环经济时做出明智的决定。成熟度评估是一种可以为产品决策者和产品供应商提供见解的方法。无论是在组织、项目还是产品层面,成熟度评估都是一种评估发展水平或实现特定目标进展情况的方法。本文提出了一个评估建筑产品系统循环成熟度的概念框架。通过系统的文献综述,作者分析了现有的建筑产品 CE 成熟度评估和 CE 指标,从而制定了该框架。功能单元被定义为建筑产品,建筑产品被定义为包含多种材料的集成系统(如预制墙系统)。这项研究发现,虽然建筑行业有许多 CE 评估框架,但必须将这些框架转化为建筑产品环境,这就需要一个量身定制的循环性指标子集和成熟度等级。本文针对建筑产品层面的关键循环性指标,提出了从 "初始 "到 "优化 "的建筑产品成熟度等级,包括材料采购、制造、产品使用阶段和报废。这一概念框架既可作为决策者的实用工具,也可作为供应商的教育工具,帮助他们了解如何支持建筑业的循环经济。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Circular Economy Maturity: How Circular are our Construction Products?
The concept of circular economy (CE) has gained momentum in the construction industry to mitigate the effects of climate change and decouple economic growth from environmental impact. There is a growing body of research related to the circularity of specific construction materials, as well as to the entire building. However, there remains a lack of understanding at the construction product level, and this lack of transparency prevents informed decisions when choosing which products to use in projects and how those products support the CE. A maturity assessment is one methodology that can provide insights for both product decisionmakers and product suppliers. Maturity assessments are a way to evaluate the level of development or progress towards a certain goal, whether at the organization, project, or product level. This paper proposes a conceptual framework to assess construction product system circularity maturity. Through a systematic literature review, the authors analyze existing CE maturity assessments and CE indicators for construction products to develop the framework. The functional unit is defined as a construction product, which is defined as an integrated system with multiple materials (i.e. a prefabricated wall system). This research finds that while there are many CE assessment frameworks for the construction sector, these must be translated into a construction product context, which requires a tailored subset of circularity indicators and maturity levels. The paper proposes construction product maturity levels ranging from “initial” to “optimizing” for key circularity indicators at the construction product level, including, material procurement, manufacturing, product use phase, and end-of-life. This conceptual framework serves as a practical tool for decisionmakers and as an educational tool for suppliers on how to support the CE in construction.
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