A Life Cycle Assessment model of End-of-life scenarios for building deconstruction and waste management. (10th March 2022)

• Record Type: Journal Article
• Authors: Quéheille, Eva; Ventura, Anne; Saiyouri, Nadia; Taillandier, Franck
• Is Part Of: Journal of cleaner production. Volume 339(2022)
• Publication Date: 2022-03-10
• Subjects: Life cycle assessment -- Building end-of-life -- Demolition waste management -- Deconstruction -- Recovery; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2022.130694
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: The end-of-life of buildings is increasingly involved to improve waste management and environmental concern of the construction sector. A Life Cycle Assessment (LCA) model is suggested in this paper to holistically estimate environmental impacts of the end-of-life of any building. The model allows to consider on site works (i.e. machines, workers …), 40 waste types and 7 waste treatments, with potential benefits from recovery. The model, which is parametric, can be easily instantiated for any building and for different end-of-life strategies (e.g. demolition or deconstruction, reuse or recycling). It can be used as a decision aid by engineers to plan the deconstruction or demolition of a building considering the environmental impact of this process. This model is applied to different real-life cases. The results show that the impacts and therefore the best scenario (i.e. the one that minimizes the environmental impact) are highly case-dependent; for example, deconstruction does not perform better than demolition for all criteria and case studies. This demonstrates the value of a parametric model that can be effective and easily applied to different buildings and strategies. Highlights: A Life Cycle Assessment model for building end-of-life is suggested. The model allows to study any case and scenario of deconstruction and waste management. The model is tested on five real case studies. Results are highly case dependent and no LCA benchmarks should be submitted for the building sector. Decision making for deconstruction and waste management strategies needs exact LCA results, which the model can provide.