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Impact of repairs on embodied carbon dioxide expenditure for a reinforced-concrete quay

Brás, A and Faustino, P (2019) Impact of repairs on embodied carbon dioxide expenditure for a reinforced-concrete quay. Proceedings of the Institution of Civil Engineers, 172 (2). pp. 87-97. ISSN 1478-4629

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Abstract

Studies on structural repair using life-cycle analysis are still lacking the environmental impact of repair actions. This research work shows that the choice of the best repair option for reinforced-concrete structures is a function of long-term environmental impact, considering the longevity of maintenance intervention and embodied carbon dioxide expenditure. The purpose of this work was to assess the lifetime of a quay superstructure exposed to an aggressive marine microenvironment by using a probabilistic performance-based approach and then to select the best repair option for its reinforced-concrete structures. The comparison is made for reinforced-concrete service life using three different concrete types and two different corrosion inhibitors. Longevity and embodied carbon dioxide were predicted for the expected number of repair actions per 100 years. It is shown that concretes may have a higher impact at the outset, although they result in a much lower impact across the service life of the structure.

Item Type: Article
Uncontrolled Keywords: 0905 Civil Engineering, 1202 Building, 1205 Urban and Regional Planning
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
N Fine Arts > NA Architecture
T Technology > TH Building construction
Divisions: Built Environment
Publisher: Ice Publishing
Related URLs:
Date Deposited: 10 Sep 2019 11:19
Last Modified: 10 Sep 2019 11:19
DOI or Identification number: 10.1680/jensu.17.00010
URI: http://researchonline.ljmu.ac.uk/id/eprint/11239

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