Article (Scientific journals)
Assessing the long term effects on climate change of metallurgical slags valorization as construction material: a comparison between static and dynamic global warming impacts
Di Maria, Andrea; Levasseur, Annie; Van Acker, Karel
2021In Mathematical Biosciences and Engineering, 1 (1), p. 88-111
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Keywords :
Applied Mathematics; Computational Mathematics; General Agricultural and Biological Sciences; Modeling and Simulation; General Medicine
Abstract :
[en] <jats:p xml:lang="fr"><abstract> <p>The interest in circular economy for the construction sector is constantly increasing, and Global Warming Potential (GWP) is often used to assess the carbon footprint of buildings and building materials. However, GWP presents some methodological challenges when assessing the environmental impacts of construction materials. Due to the long life of construction materials, GWP calculation should take into consideration also time-related aspects. However, in the current GWP, any temporal information is lost, making traditional static GWP better suited for retrospective assessment rather than forecasting purposes. Building on this need, this study uses a time-dependent GWP to assess the carbon footprint of two newly developed construction materials, produced through the recycling of industrial residues (stainless steel slag and industrial goethite). The results for both materials are further compared with the results of traditional ordinary Portland cement (OPC) based concrete, presenting similar characteristics. The results of the dynamic GWP (D_GWP) are also compared to the results of traditional static GWP (S_GWP), to see how the methodological development of D_GWP may influence the final environmental evaluation for construction materials. The results show the criticality of the recycling processes, especially in the case of goethite valorization. The analysis shows also that, although the D_GWP did not result in a shift in the ranking between the three materials compared with S_GWP, it provides a clearer picture of emission flows and their effect on climate change over time.</p> </abstract>
Disciplines :
Materials science & engineering
Author, co-author :
Di Maria, Andrea  ;  Université de Liège - ULiège > TERRA Research Centre > Biosystems Dynamics and Exchanges (BIODYNE)
Levasseur, Annie;  UQAM - Université du Québec à Montréal [CA] > Department of Construction Engineering > CIRAIG
Van Acker, Karel;  KU Leuven - Katholieke Universiteit Leuven [BE] > Department of materials engineering
Language :
English
Title :
Assessing the long term effects on climate change of metallurgical slags valorization as construction material: a comparison between static and dynamic global warming impacts
Publication date :
2021
Journal title :
Mathematical Biosciences and Engineering
ISSN :
1547-1063
eISSN :
1551-0018
Publisher :
American Institute of Mathematical Sciences (AIMS)
Volume :
1
Issue :
1
Pages :
88-111
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 December 2022

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