Assessment of the ground aggregate paste (GAP) test for aggregate alkali–silica reactivity screening

Boyd-Weetman, B; Thomas, P

Assessment of the ground aggregate paste (GAP) test for aggregate alkali–silica reactivity screening

Boyd-Weetman, B Thomas, P

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Journal of Thermal Analysis and Calorimetry, 2020, 142, (5), pp. 1635-1641
Issue Date:: 2020-12-01

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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.date.accessioned	2021-02-04T02:55:04Z
dc.date.available	2021-02-04T02:55:04Z
dc.date.issued	2020-12-01
dc.identifier.citation	Journal of Thermal Analysis and Calorimetry, 2020, 142, (5), pp. 1635-1641
dc.identifier.issn	1388-6150
dc.identifier.issn	1588-2926
dc.identifier.uri	http://hdl.handle.net/10453/145811
dc.description.abstract	© 2020, Akadémiai Kiadó, Budapest, Hungary. This paper investigates the potential of a laboratory test for the screening of aggregate reactivity to alkali–silica reaction (ASR) through phase analysis of the phases developed in ground aggregate paste (GAP) specimens subjected to accelerated ageing. GAPs were prepared using two aggregates categorised as non-reactive and potentially reactive by standard expansion test methods and were aged at 40, 60 and 80 °C in 1 M NaOH solution over periods up to 84 days. Phase development was monitored using TG, XRD and FTIR, and the reactivity was correlated with quartz and calcium hydroxide consumption. The data demonstrate that this test has the potential to be developed as a screening test, based on the correlation of phase consumption with Australian standard expansion test reactivity categorisation.
dc.language	en
dc.publisher	Springer Science and Business Media LLC
dc.relation.ispartof	Journal of Thermal Analysis and Calorimetry
dc.relation.isbasedon	10.1007/s10973-020-09768-8
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0306 Physical Chemistry (incl. Structural), 0399 Other Chemical Sciences
dc.subject.classification	Physical Chemistry
dc.title	Assessment of the ground aggregate paste (GAP) test for aggregate alkali–silica reactivity screening
dc.type	Journal Article
utslib.citation.volume	142
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0306 Physical Chemistry (incl. Structural)
utslib.for	0399 Other Chemical Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-04T02:54:57Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	142
utslib.citation.issue	5

Abstract:

© 2020, Akadémiai Kiadó, Budapest, Hungary. This paper investigates the potential of a laboratory test for the screening of aggregate reactivity to alkali–silica reaction (ASR) through phase analysis of the phases developed in ground aggregate paste (GAP) specimens subjected to accelerated ageing. GAPs were prepared using two aggregates categorised as non-reactive and potentially reactive by standard expansion test methods and were aged at 40, 60 and 80 °C in 1 M NaOH solution over periods up to 84 days. Phase development was monitored using TG, XRD and FTIR, and the reactivity was correlated with quartz and calcium hydroxide consumption. The data demonstrate that this test has the potential to be developed as a screening test, based on the correlation of phase consumption with Australian standard expansion test reactivity categorisation.

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http://hdl.handle.net/10453/145811