Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment

The built environment—with its significant environmental impact and long lifespan—is a key sector in which to implement circular economy principles. So far, however, a coherent framework with circularity indicators has not yet been established. While Life Cycle Assessment (LCA) is commonly practiced...

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Main Authors: Wai Chung Lam, Steven Claes, Michiel Ritzen
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/12/2152
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author Wai Chung Lam
Steven Claes
Michiel Ritzen
author_facet Wai Chung Lam
Steven Claes
Michiel Ritzen
author_sort Wai Chung Lam
collection DOAJ
description The built environment—with its significant environmental impact and long lifespan—is a key sector in which to implement circular economy principles. So far, however, a coherent framework with circularity indicators has not yet been established. While Life Cycle Assessment (LCA) is commonly practiced to quantify the total environmental impact, it is designed and intended to assess linear life cycles, making it unsuitable for circularity assessment. Thus this paper explores an objective method to link LCA to a semi-quantified circularity indicator. Four variants of external wall designs of two case studies are analyzed. The explored possibilities of linking LCA results or mass input flows to the circularity indicator show differences in outcome. Furthermore, the analysis shows that decision-making can be affected by choice of assessing only a circularity indicator, an environmental impact indicator, or mass input flows, as opposed to a scenario in which a linked approach of these parameters is applied.
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spelling doaj.art-c5b1dc6634ba45628c98ee6f982ce6432023-11-24T13:42:42ZengMDPI AGBuildings2075-53092022-12-011212215210.3390/buildings12122152Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built EnvironmentWai Chung Lam0Steven Claes1Michiel Ritzen2VITO, Unit Smart Energy and Built Environment, Boeretang 200, 2400 Mol, BelgiumVITO, Unit Smart Energy and Built Environment, Boeretang 200, 2400 Mol, BelgiumVITO, Unit Smart Energy and Built Environment, Boeretang 200, 2400 Mol, BelgiumThe built environment—with its significant environmental impact and long lifespan—is a key sector in which to implement circular economy principles. So far, however, a coherent framework with circularity indicators has not yet been established. While Life Cycle Assessment (LCA) is commonly practiced to quantify the total environmental impact, it is designed and intended to assess linear life cycles, making it unsuitable for circularity assessment. Thus this paper explores an objective method to link LCA to a semi-quantified circularity indicator. Four variants of external wall designs of two case studies are analyzed. The explored possibilities of linking LCA results or mass input flows to the circularity indicator show differences in outcome. Furthermore, the analysis shows that decision-making can be affected by choice of assessing only a circularity indicator, an environmental impact indicator, or mass input flows, as opposed to a scenario in which a linked approach of these parameters is applied.https://www.mdpi.com/2075-5309/12/12/2152Life Cycle Assessmentcircularity assessmentlinking indicators
spellingShingle Wai Chung Lam
Steven Claes
Michiel Ritzen
Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
Buildings
Life Cycle Assessment
circularity assessment
linking indicators
title Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
title_full Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
title_fullStr Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
title_full_unstemmed Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
title_short Exploring the Missing Link between Life Cycle Assessment and Circularity Assessment in the Built Environment
title_sort exploring the missing link between life cycle assessment and circularity assessment in the built environment
topic Life Cycle Assessment
circularity assessment
linking indicators
url https://www.mdpi.com/2075-5309/12/12/2152
work_keys_str_mv AT waichunglam exploringthemissinglinkbetweenlifecycleassessmentandcircularityassessmentinthebuiltenvironment
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