Make or break the loop: a cross-practitioners review of glass circularity

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Abstract

End-of-life insulating glass units (IGUs) continue to follow a linear, wasteful path from renovation and demolition sites into landfills or low-value recycling. To get one step closer to the question of how to close the glass loop, this exploratory research outlines a cross-practitioners review of glass circularity in conventional Flemish and Brussels practices. A series of semi-structured interviews with network actors and an extensive literature study is conducted to identify existing and missing circular practices and to pinpoint the key barriers and opportunities. In general, the circular strategies repurpose and open-loop recycling of end-of-life IGUs are successfully applied in Flemish and Brussels construction practices. Repair, reuse, and closed-loop recycling remain unexplored. The main barriers are the lack of collaboration, logistic and labour costs to collect end-of-life IGUs, its complex disassembly, the lack of legal incentives and the conservativeness of the construction sector. Case studies, the high recycling potential and the scale of projects are found to be the main opportunities for glass circularity. The cross-practitioners’ insights in this paper contribute to close the glass loop and to further development and up-scaling of circular strategies
Original languageEnglish
Pages (from-to)193-210
Number of pages18
JournalGlass Structures & Engineering
Volume8
Issue number2
DOIs
Publication statusPublished - Sep 2023

Bibliographical note

Funding Information:
We would like to thank all the participating interviewees for their valuable input and feedback. This research was funded by Fonds Wetenschappelijk Onderzoek (FWO), Grant Number 1S20722N

Publisher Copyright:
© 2022, The Author(s).

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

Keywords

  • Insulating glass unit
  • circular economy
  • Waste management
  • Circular valorisation strategies
  • Closed material loops
  • Barriers
  • Opportunities

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