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Economic and environmental life cycle assessment of a short-span aluminium composite bridge deck in Canada

Julien Pedneault, Victor Desjardins, Manuele Margni, David Conciatori, Mario Fafard, Luca Sorelli

Article (2021)

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Abstract

The costs to maintain Québec's infrastructure—most of which was built in the 1960s and 1970s—are considerable, and major maintenance and reconstruction will be required in the coming years. In recent years, aluminum associations promote the increase of aluminum use in infrastructure and especially in bridge construction. This research aims to investigate the advantages of using aluminum deck bridges, which require less maintenance than traditional materials due to the natural resistance to atmospheric corrosion of aluminum, despite their higher investment costs that may limit their deployment. More specifically, the study compares for the first time the life cycle costs and environmental impacts of an aluminum-steel composite deck with a more traditional concrete-steel composite deck and provides a parametrized model allowing practitioners and designers to perform screening life cycle assessment and cost of short span bridge based on our data and results. Results show that the initial cost of aluminum deck is double that of concrete deck, but the overall cost is actually four times lower over the entire life cycle. The environmental results demonstrate the benefits of aluminum deck. Our main recommendation for future decision making in road infrastructure management is therefore to systematically expand the scope of the analysis integrating a full life cycle thinking also including the effects from traffic diversion.

Uncontrolled Keywords

Life-cycle cost analysis; Life cycle assessment; Bridge deck Aluminum-steel composite bridges; Steel-concrete composite bridges

Subjects: 1100 Structural engineering > 1105 Structural materials
1500 Environmental engineering > 1500 Environmental engineering
Department: Department of Mathematics and Industrial Engineering
Research Center: CIRAIG - International Reference Centre for the Life Cycle of Products, Processes and Services
Funders: Ministry of Transport of Quebec, Fonds de Recherche du Québec – Nature et Technologies
Grant number: R787.1
PolyPublie URL: https://publications.polymtl.ca/6582/
Journal Title: Journal of Cleaner Production (vol. 310)
Publisher: Elsevier
DOI: 10.1016/j.jclepro.2021.127405
Official URL: https://doi.org/10.1016/j.jclepro.2021.127405
Date Deposited: 02 Jun 2021 09:16
Last Modified: 28 Nov 2022 07:10
Cite in APA 7: Pedneault, J., Desjardins, V., Margni, M., Conciatori, D., Fafard, M., & Sorelli, L. (2021). Economic and environmental life cycle assessment of a short-span aluminium composite bridge deck in Canada. Journal of Cleaner Production, 310, 127405. https://doi.org/10.1016/j.jclepro.2021.127405

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