Wang, J, Lord, T, Wang, Y et al. (2 more authors) (2022) Effects of carbonation on mechanical properties of concrete under high temperature and impact. Proceedings of the Institution of Civil Engineers - Smart Infrastructure and Construction, 175 (1). pp. 44-56. ISSN 2397-8759
Abstract
This paper presents the results of an experimental study that investigated changes in the mechanical properties of two types of concrete under normal and extreme loading conditions pre- and post-carbonation. Specimens of CEM I and CEM II concrete (concrete prepared with 20% replacement cement with pulverised-fuel ash) were cured for 28 days before accelerated carbonation under 4% carbon dioxide (CO₂) for 28 days at 20°C and 57% relative humidity. Static compressive mechanical tests at ambient temperature were carried out for both concrete types. For CEM I concrete, static compressive mechanical tests were performed at elevated temperatures of 300, 500 and 650°C, and high-strain-rate tests were performed at ambient temperature and elevated temperature of 500°C. The results show that the mechanical performance of CEM I concrete was improved after carbonation – that is, static compressive strength increased at ambient and elevated temperatures, and the dynamic strength was higher than that of fresh concrete at the same strain rate at both ambient and elevated temperatures. However, CEM II concrete suffered reductions in compressive strength after carbonation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Ⓒ ICE Publishing: All rights reserved. This is an author produced version of an article published in Proceedings of the Institution of Civil Engineers - Smart Infrastructure and Construction. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | carbonation; concrete; high strain rate; high temperature; SHPB |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/R013535/1 EPSRC (Engineering and Physical Sciences Research Council) EP/P017169/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Feb 2022 16:10 |
Last Modified: | 15 May 2023 14:11 |
Status: | Published |
Publisher: | ICE Publishing |
Identification Number: | 10.1680/jsmic.21.00021 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:183641 |