Postgraduate Program in Civil Engineering - PPGEC, Technology Institute - ITEC, Federal University of Pará - UFPA, Belém, Para, Brazil.
Faculty of Engineering and the Built Environment, School of Engineering and the Built Environment, Birmingham City University, Birmingham, UK.
Waste Manag Res. 2021 Nov;39(11):1341-1355. doi: 10.1177/0734242X21998730. Epub 2021 Mar 11.
Construction and demolition waste (CDW) substantially contributes to environmental degradation because of its intrinsic characteristics of fast and high generation volume, low recycling rate, and low revenue margins. A systemic problem is that recycling facilities are not usually a part of a reverse supply chain (RSC) specific for CDW. This makes the recovery process costs prohibitive, especially where companies are unable to receive and process large volumes of waste continuously. This paper presents a systematic analysis of the extant literature and utilizes the results accrued to develop a conceptual RSC model for CDW. In so doing, the research seeks to provide clarity on this phenomenon, while simultaneously stimulating wider academic discourse and further research endeavours. A mixed philosophies epistemological design was adopted using both interpretavism and constructivism to undertake a qualitative systematic analysis of the literature. A process diagram was produced to represent the conceptual model (CM) and thematically group the nodes into three key swim lanes that delineate the boundaries between distribution, manufacturing, and sourcing and warehousing processes. Within each swim lane, stakeholders were incorporated as key actors. A further layer of nuanced complexity was added to illustrate the key actors involved in the process, government strategies, and activity flow paths. This novel CM offers both practical and theoretical contributions to existing knowledge and signposts a future research direction. Such work will demystify reverse logistics for managing CDW, and assist government policy-makers to develop informed policies that reduce the negative environmental impact of construction activities.
建筑和拆除废物（CDW）因其快速且产生量大、回收利用率低、利润微薄的固有特点，对环境退化造成了重大影响。一个系统问题是，回收设施通常不是专门针对 CDW 的逆向供应链（RSC）的一部分。这使得回收过程成本过高，特别是在公司无法连续接收和处理大量废物的情况下。本文对现有文献进行了系统分析，并利用所得结果开发了 CDW 的概念性 RSC 模型。通过这样做，研究旨在澄清这一现象，同时激发更广泛的学术讨论和进一步的研究努力。该研究采用了混合哲学认识论设计，同时使用解释主义和建构主义对文献进行定性系统分析。生成了一个过程图来表示概念模型（CM），并将节点主题分组到三个关键泳道中，这些泳道划分了配送、制造和采购以及仓储过程之间的边界。在每个泳道中，都将利益相关者纳入关键角色。进一步增加了细微差别和复杂性，以说明涉及该过程的关键角色、政府战略和活动流路径。这个新颖的 CM 为现有知识提供了实用和理论贡献，并指明了未来的研究方向。这样的工作将为管理 CDW 的逆向物流提供启示，并帮助政府决策者制定明智的政策，减少建筑活动对环境的负面影响。
