Building material stock analysis is critical for effective circular economy strategies: a comprehensive review
Building material stock analysis is critical for effective circular economy strategies: a comprehensive review
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DOI：
10.1088/2634-4505/ac6d08
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发表时间：
2022-05
期刊：
影响因子：
--
通讯作者：
Rezvan Mohammadiziazi;M. Bilec
中科院分区：
文献类型：
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作者：
Rezvan Mohammadiziazi;M. Bilec
建筑物在全球积累的材料和废物中所占份额最大。跟踪这些材料的组成、数量和位置，即所谓的建筑材料库存分析(MSA)，是实现材料再利用或重新利用材料的第一步，这是循环经济的关键战略。虽然建筑MSA的数量在增长，但需要将方法、数据和范围统一起来。因此，在这项工作中，我们从不同的角度回顾和评价了62篇关于建筑MSA的期刊和会议文章，包括范围、边界、原型分类、材料强度确定、方法(即自下而上、自上而下、遥感)和材料数量，以确定该领域的障碍、差距和机会及其对决策、政策和法规的影响。我们对MSA的三种主要方法进行了分类，并讨论了它们的优缺点。我们还创建了一个全面的建筑原型、参考资料和材料目录，供未来的研究人员参考。正如预期的那样，大多数研究估计，与其他材料相比，混凝土的质量最大；然而，基于质量的材料分布显示，世界各地不同的建筑库存存在显著差异。此外，嵌入塑料及其类型在目前的研究中仍未得到充分代表。MSA的一个主要障碍与缺乏有关物理属性和地理信息系统、设计和施工数据的信息有关。政策制定者可以通过制定法规，强制在许可过程中报告与建筑相关的数据，从而在缓解数据壁垒方面发挥作用。此外，建筑MSA的结果可以帮助政策制定者考虑对利用这些丰富建筑材料的设计和施工进行激励。
Buildings account for the largest share of accumulated materials and waste globally. Tracking the material composition, quantity and location of these materials, known as building material stock analysis (MSA), is a first step in enabling the reuse or repurposing of materials, key strategies of the circular economy. While the number of building MSAs is growing, there is a need to coalesce methods, data and scope. Therefore, in this work, we reviewed and evaluated 62 journal and conference articles on MSA of buildings from different angles including scope, boundaries, archetype classification, material intensity determination, approaches (i.e. bottom-up, top-down, remote sensing) and quantity of materials to identify barriers, gaps and opportunities in this area along with its implications for decision-making, policy and regulations. We cataloged the three major approaches of MSAs and discuss their advantages and shortcomings. We also created a comprehensive directory of building archetypes, references and materials for future researchers. As expected, most of the studies estimated that concrete had the largest mass compared with other materials; however, mass-based distribution of materials showed significant variations in different building stocks across the world. Also, embedded plastics and their types remain under-represented in current studies. A major barrier to MSA is related to a lack of information on physical attributes and geographic information system, design and construction data. Policy makers can play a role in mitigating data barriers through instituting regulations that enforce the reporting of building-related data during the permitting process. Furthermore, outcomes of building MSA can help policy makers when considering incentives for design and construction that utilize these abundant building materials.