Bernal, SA orcid.org/0000-0002-9647-3106, Ke, X, Criado, M et al. (2 more authors) (2017) Factors controlling carbonation resistance of alkali-activated materials. In: Tagnit-Hamou, A, (ed.) Special Publication 320: Proceedings of the 10th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete. ICCM 2017: 10th ACI/RILEM International Conference in Cementitious Materials and Alternative Binders for Sustainable Concrete, 02-04 Oct 2017, Montreal, Canada. American Concrete Institute , 36.1-36.10. ISBN 978-1-945487-77-4
Abstract
Although notable advances have been made in recent years in elucidating the relationship between the nature of the precursor and the activation conditions used for production of alkali-activated materials (AAMs), it remains largely unknown whether these materials can withstand various environmental threats during their service life. The interaction between a cementitious material and the CO2 present in the air is referred to as carbonation, and while this is largely a well understood phenomenon for portland cement systems, its long-term effects in AAMs are unknown. This is a consequence of the large number of variables controlling microstructural development and therefore macro-scale properties of AAMs, and the lack of standardized methodologies for testing their carbonation resistance. This study reports an overview of recently identified factors inducing microstructural changes in AAMs upon exposure to CO2, and the influence of carbonation on the corrosion resistance of some steel reinforced AAMs.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author produced version of a paper published in Special Publication 320: Proceedings of the 10th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete. Uploaded with permission from the publisher. |
Keywords: | Durability; Alkali-activated Materials; Carbonation; Corrosion |
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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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 11 Sep 2018 15:24 |
Last Modified: | 17 Nov 2018 03:18 |
Published Version: | https://www.concrete.org/publications/internationa... |
Status: | Published |
Publisher: | American Concrete Institute |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135521 |