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A new circular economy framework for construction projects
Proceedings of the Institution of Civil Engineers - Engineering Sustainability ( IF 1.2 ) Pub Date : 2021-04-22 , DOI: 20.00067
Eurica Mae Medina, Feng Fu

Circular economy (CE) is a holistic, viable solution to the ‘take-make-dispose of’ system of the linear model that enhances economic growth without threatening environmental and social value. Its principles are based on product optimisation, waste elimination and regeneration of natural systems. In this paper, a pilot study evaluates the feasibility of implementing CE in construction projects, followed by the development of a new framework with strategies for altering current construction activities for greater circularity. To demonstrate the benefits of implementing a CE model, a critical assessment of its impacts in the industry was made that considers costing, environmental impacts and legislative action. A new comprehensive CE framework was developed that details a set of indicators, action plans and resources allocated to assess the performance of the strategy implementation, specifically designed for building cycles. To address the challenge of monitoring progress on the transition towards circularity, quantitative tools using a life-cycle approach were developed in this study including an embodied carbon dioxide emission calculator and databases for waste and circularity indexing of common construction materials. The framework, accompanied by these tools, was applied to a construction case study to verify its feasibility in combining scientific and policymaking guidelines. Good practice recommendations were also offered, based on the qualitative research undertaken, to enrich the study further.

中文翻译:

建设项目循环经济新框架

循环经济 (CE) 是线性模型的“获取-制造-处置”系统的整体可行解决方案,可在不威胁环境和社会价值的情况下促进经济增长。其原则基于产品优化、废物消除和自然系统的再生。在本文中,一项试点研究评估了在建筑项目中实施 CE 的可行性,然后制定了一个新框架,其中包含改变当前建筑活动以实现更大循环的策略。为了证明实施 CE 模型的好处,对其在行业中的影响进行了重要评估,其中考虑了成本、环境影响和立法​​行动。开发了一个新的综合 CE 框架,其中详细说明了一组指标,为评估战略实施的绩效而分配的行动计划和资源,专为建设周期而设计。为了应对监测向循环性过渡的进展的挑战,本研究开发了使用生命周期方法的定量工具,包括嵌入式二氧化碳排放计算器和常见建筑材料的废物和循环性索引数据库。该框架连同这些工具被应用于建筑案例研究,以验证其将科学和决策指南结合起来的可行性。还根据所进行的定性研究提供了良好做法建议,以进一步丰富研究内容。为了应对监测向循环性过渡的进展的挑战,本研究开发了使用生命周期方法的定量工具,包括嵌入式二氧化碳排放计算器和常见建筑材料的废物和循环性索引数据库。该框架连同这些工具被应用于建筑案例研究,以验证其将科学和决策指南结合起来的可行性。还根据所进行的定性研究提供了良好做法建议,以进一步丰富研究内容。为了应对监测向循环性过渡的进展的挑战,本研究开发了使用生命周期方法的定量工具,包括嵌入式二氧化碳排放计算器和常见建筑材料的废物和循环性索引数据库。该框架连同这些工具被应用于建筑案例研究,以验证其将科学和决策指南结合起来的可行性。还根据所进行的定性研究提供了良好做法建议,以进一步丰富研究内容。伴随着这些工具,被应用于建筑案例研究,以验证其将科学和决策指南结合起来的可行性。还根据所进行的定性研究提供了良好做法建议,以进一步丰富研究内容。伴随着这些工具,被应用于建筑案例研究,以验证其将科学和决策指南结合起来的可行性。还根据所进行的定性研究提供了良好做法建议,以进一步丰富研究内容。
更新日期:2021-04-22
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