Accelerated test for assessing the potential risk of alkali-silica reaction in concrete using an autoclave

Cao, J; Gowripalan, N; Sirivivatnanon, V; South, W

Accelerated test for assessing the potential risk of alkali-silica reaction in concrete using an autoclave

Cao, J Gowripalan, N

Sirivivatnanon, V South, W

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2020, 271, pp. 1-12
Issue Date:: 2020-12-16

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Field	Value	Language
dc.contributor.author	Cao, J
dc.contributor.author	Gowripalan, N https://orcid.org/0000-0001-6930-2056
dc.contributor.author	Sirivivatnanon, V
dc.contributor.author	South, W
dc.date.accessioned	2020-12-18T04:54:35Z
dc.date.available	2020-12-18T04:54:35Z
dc.date.issued	2020-12-16
dc.identifier.citation	Construction and Building Materials, 2020, 271, pp. 1-12
dc.identifier.issn	0950-0618
dc.identifier.uri	http://hdl.handle.net/10453/144844
dc.description.abstract	To rapidly assess the potential risk of alkali-silica reaction (ASR) in concrete, an accelerated test using an autoclave by adopting multi-cycle 80 °C steam warming at atmospheric pressure is proposed. The influence of autoclave steam warming temperature, cycles/duration, and alkali dosage on expansion of mortar bars and concrete prisms was evaluated. Mechanical properties of concrete under accelerated ASR test were investigated. Furthermore, SEM-EDS analysis confirmed ASR products and indicated that the expansion is caused by ASR. The expansion limits considered for classifying aggregates were discussed. The experimental results demonstrated that the period required for assessing the potential risk of ASR in concrete (dacite aggregate in this study) can be shortened to 37 days.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/IH150100006
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2020.121871
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Accelerated test for assessing the potential risk of alkali-silica reaction in concrete using an autoclave
dc.type	Journal Article
utslib.citation.volume	271
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
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
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2020-12-18T04:54:16Z
pubs.publication-status	Published
pubs.volume	271

Abstract:

To rapidly assess the potential risk of alkali-silica reaction (ASR) in concrete, an accelerated test using an autoclave by adopting multi-cycle 80 °C steam warming at atmospheric pressure is proposed. The influence of autoclave steam warming temperature, cycles/duration, and alkali dosage on expansion of mortar bars and concrete prisms was evaluated. Mechanical properties of concrete under accelerated ASR test were investigated. Furthermore, SEM-EDS analysis confirmed ASR products and indicated that the expansion is caused by ASR. The expansion limits considered for classifying aggregates were discussed. The experimental results demonstrated that the period required for assessing the potential risk of ASR in concrete (dacite aggregate in this study) can be shortened to 37 days.

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http://hdl.handle.net/10453/144844