Assessing the Role of Standard Test Methods in Alkali Content Threshold Determination for ASR Reactive Aggregates

Boyd-Weetman, B; Thomas, P; De Silva, P; Tapas, MJ; Sirivivatnanon, V

Assessing the Role of Standard Test Methods in Alkali Content Threshold Determination for ASR Reactive Aggregates

Boyd-Weetman, B Thomas, P

De Silva, P Tapas, MJ Sirivivatnanon, V

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Publisher:: Springer
Publication Type:: Conference Proceeding
Citation:: Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete, 2024, 49, pp. 409-417
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Boyd-Weetman, B
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121
dc.contributor.author	De Silva, P
dc.contributor.author	Tapas, MJ
dc.contributor.author	Sirivivatnanon, V https://orcid.org/0000-0003-1901-6064
dc.date	2024-05-19
dc.date.accessioned	2024-11-20T08:21:09Z
dc.date.available	2024-11-20T08:21:09Z
dc.date.issued	2024-01-01
dc.identifier.citation	Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete, 2024, 49, pp. 409-417
dc.identifier.isbn	978-3-031-59418-2
dc.identifier.issn	2211-0844
dc.identifier.issn	2211-0852
dc.identifier.uri	http://hdl.handle.net/10453/181989
dc.description.abstract	Accelerated test methods have long and successfully been used to assess and categorise the reactivity of aggregates to the alkali-silica reaction (ASR). Test methods (e.g. RILEM AAR-3.2) have also been developed to assess the potential for alkali content threshold determination for aggregates that have been categorised as reactive and to investigate the efficacy of supplementary cementitious materials (SCMs) in mitigating ASR (e.g. RILEM AAR-10). Typically, these tests are based on the concrete prism test (CPT). The CPT is, however, susceptible to leaching of the alkali from the prisms. As testing alkali threshold content or SCM efficacy is dependent on the alkali content of the concrete prism, alkali leaching has the potential for providing misleading results. This study reports the outcomes of threshold testing using CPT as well as the use of a novel pore solution immersion test method for their assessment of threshold determination and SCM efficacy in mitigation of ASR for a course reactive aggregate.
dc.language	en
dc.publisher	Springer
dc.relation	http://purl.org/au-research/grants/arc/IH150100006
dc.relation.ispartof	Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete
dc.relation.ispartof	International Conference on Alkali-Aggregate Reaction in Concrete
dc.relation.ispartofseries	RILEM Bookseries
dc.relation.isbasedon	10.1007/978-3-031-59419-9_48
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Assessing the Role of Standard Test Methods in Alkali Content Threshold Determination for ASR Reactive Aggregates
dc.type	Conference Proceeding
utslib.citation.volume	49
utslib.location.activity	Ottawa, Canada
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
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Built Infrastructure Resilience (CBIR)
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2024-11-20T08:21:07Z
pubs.finish-date	2024-05-24
pubs.place-of-publication	Cham, Switzerland
pubs.publication-status	Published
pubs.start-date	2024-05-19
pubs.volume	49
dc.location	Cham, Switzerland

Abstract:

Accelerated test methods have long and successfully been used to assess and categorise the reactivity of aggregates to the alkali-silica reaction (ASR). Test methods (e.g. RILEM AAR-3.2) have also been developed to assess the potential for alkali content threshold determination for aggregates that have been categorised as reactive and to investigate the efficacy of supplementary cementitious materials (SCMs) in mitigating ASR (e.g. RILEM AAR-10). Typically, these tests are based on the concrete prism test (CPT). The CPT is, however, susceptible to leaching of the alkali from the prisms. As testing alkali threshold content or SCM efficacy is dependent on the alkali content of the concrete prism, alkali leaching has the potential for providing misleading results. This study reports the outcomes of threshold testing using CPT as well as the use of a novel pore solution immersion test method for their assessment of threshold determination and SCM efficacy in mitigation of ASR for a course reactive aggregate.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/181989