Chloride ingress analysis on alkali-activated slag concrete: A validated modelling framework for long-term assessment

Dong, B; Yu, Y; Feng, Y; Yang, J; Zhao, G; Gao, W

Chloride ingress analysis on alkali-activated slag concrete: A validated modelling framework for long-term assessment

Dong, B Yu, Y Feng, Y Yang, J Zhao, G Gao, W

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Building Engineering, 2024, 93, pp. 109867
Issue Date:: 2024-09-15

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Field	Value	Language
dc.contributor.author	Dong, B
dc.contributor.author	Yu, Y
dc.contributor.author	Feng, Y
dc.contributor.author	Yang, J
dc.contributor.author	Zhao, G
dc.contributor.author	Gao, W
dc.date.accessioned	2025-03-04T03:40:50Z
dc.date.available	2025-03-04T03:40:50Z
dc.date.issued	2024-09-15
dc.identifier.citation	Journal of Building Engineering, 2024, 93, pp. 109867
dc.identifier.issn	2352-7102
dc.identifier.issn	2352-7102
dc.identifier.uri	http://hdl.handle.net/10453/185500
dc.description.abstract	Amidst global commitment to reduce CO2 emissions, the forthcoming decades expect to witness the prevalence of alkali-activated materials. As a predominant trigger for reinforcement corrosion, the accurate prediction of chloride ingress is paramount for the widespread application of the emerging building material. In this regard, this paper presents a novel framework tailored for analysing long-term chloride penetration into alkali-activated slag (AAS) concrete. An innovative technique for modelling chloride binding is developed and integrated into the framework. The technique can spontaneously assess time-dependent chloride binding based on the detailed phase assemblage, thereby rendering the framework applicability for the long-term analysis. The effectiveness of this model is rigorously validated against experiments. Furthermore, a series of virtual experiments are conducted by using the verified model to investigate the impact of different activators, where the distinction of resulting AAS concretes in resisting chloride ingress is elucidated. Overall, the present model is promising in delivering comprehensive understanding and robust prediction concerning long-term behaviours of next-generation AAS concrete buildings.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/IH200100010
dc.relation	http://purl.org/au-research/grants/arc/DP240102559
dc.relation	http://purl.org/au-research/grants/arc/IH210100048
dc.relation.ispartof	Journal of Building Engineering
dc.relation.isbasedon	10.1016/j.jobe.2024.109867
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering, 1201 Architecture, 1202 Building
dc.subject.classification	3302 Building
dc.subject.classification	4005 Civil engineering
dc.title	Chloride ingress analysis on alkali-activated slag concrete: A validated modelling framework for long-term assessment
dc.type	Journal Article
utslib.citation.volume	93
utslib.for	0905 Civil Engineering
utslib.for	1201 Architecture
utslib.for	1202 Building
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-03-04T03:40:48Z
pubs.publication-status	Published
pubs.volume	93

Abstract:

Amidst global commitment to reduce CO2 emissions, the forthcoming decades expect to witness the prevalence of alkali-activated materials. As a predominant trigger for reinforcement corrosion, the accurate prediction of chloride ingress is paramount for the widespread application of the emerging building material. In this regard, this paper presents a novel framework tailored for analysing long-term chloride penetration into alkali-activated slag (AAS) concrete. An innovative technique for modelling chloride binding is developed and integrated into the framework. The technique can spontaneously assess time-dependent chloride binding based on the detailed phase assemblage, thereby rendering the framework applicability for the long-term analysis. The effectiveness of this model is rigorously validated against experiments. Furthermore, a series of virtual experiments are conducted by using the verified model to investigate the impact of different activators, where the distinction of resulting AAS concretes in resisting chloride ingress is elucidated. Overall, the present model is promising in delivering comprehensive understanding and robust prediction concerning long-term behaviours of next-generation AAS concrete buildings.

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http://hdl.handle.net/10453/185500