The construction industry is one of the top contributors to global emissions and waste generation. The current pressures on landfill capacities, timber supply shortages, and the promulgation of the United Nations Sustainable Development Goals (UN SDGs) have significantly raised the importance of waste diversion. When executed properly, the systematic deconstruction and reuse of building elements can significantly reduce the environmental impacts of the built environment. Furthermore, the increased recovery and reuse of construction materials promotes the adaptation of circular economy principles in the construction industry. Moreover, the effective repurposing and recirculation of building elements that would otherwise be landfilled can help Ontario to meet its waste diversion targets. Despite this, there are still significant gaps in resources, guidelines, and tools that aid in assessing and planning reusable building products. The objective of this research is to develop a reclamation audit framework for demolition projects. Published literature was used to develop a reclamation audit framework. A scoring system was developed to determine how deconstruction should be done for a structure. The proposed method is demonstrated through a visual assessment of a detached office. The outcomes of this research aid in promoting circularity in the construction industry while supporting the UN SDGs.

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Circular Economy in the Construction Industry: Reclamation Audits to Increase Material Reusability in Demolition Projects

  • Mariah Saad,
  • Rajeev Ruparathna,
  • Nihar Biswas,
  • Edwin Tam

摘要

The construction industry is one of the top contributors to global emissions and waste generation. The current pressures on landfill capacities, timber supply shortages, and the promulgation of the United Nations Sustainable Development Goals (UN SDGs) have significantly raised the importance of waste diversion. When executed properly, the systematic deconstruction and reuse of building elements can significantly reduce the environmental impacts of the built environment. Furthermore, the increased recovery and reuse of construction materials promotes the adaptation of circular economy principles in the construction industry. Moreover, the effective repurposing and recirculation of building elements that would otherwise be landfilled can help Ontario to meet its waste diversion targets. Despite this, there are still significant gaps in resources, guidelines, and tools that aid in assessing and planning reusable building products. The objective of this research is to develop a reclamation audit framework for demolition projects. Published literature was used to develop a reclamation audit framework. A scoring system was developed to determine how deconstruction should be done for a structure. The proposed method is demonstrated through a visual assessment of a detached office. The outcomes of this research aid in promoting circularity in the construction industry while supporting the UN SDGs.