Assessment of Test Methods for ASR Aggregate Reactivity

Thomas, P; Ha Hau, WF; Vessalas, K; Sirivivatnanon, V; South, W

Assessment of Test Methods for ASR Aggregate Reactivity

Thomas, P

Ha Hau, WF Vessalas, K Sirivivatnanon, V

South, W

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Publication Type:: Conference Proceeding
Citation:: 2017
Issue Date:: 2017-10-22

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Field	Value	Language
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121	en_US
dc.contributor.author	Ha Hau, WF	en_US
dc.contributor.author	Vessalas, K	en_US
dc.contributor.author	Sirivivatnanon, V https://orcid.org/0000-0003-1901-6064	en_US
dc.contributor.author	South, W	en_US
dc.date	2017-10-22	en_US
dc.date.available	2017-05-23	en_US
dc.date.issued	2017-10-22	en_US
dc.identifier.citation	2017	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128539
dc.description.abstract	The paper reports on the initial stages of a study into the use of phase analysis using typical laboratory techniques; thermogravimetric analysis (TG), infrared spectroscopy (FTIR) and x-ray diffraction (XRD) to investigate the alkali silica reaction (ASR) with a view to classifying the relative reactivity of aggregates. Phase analysis of ground aggregates reacted under AS1141.60.1 accelerated mortar bar test (AMBT) conditions in the presence of calcium hydroxide (CH) are reported for aggregates that have been identified as non-reactive, slowly-reactive and reactive according to the AMBT test. Results of the phase analysis correlated the AMBT classifications. The reactivity of the aggregates was also compared to the reactivity of a quartz flour of similar particle size distribution which was found to be less reactive than the reactive and slowly reactive aggregates. The reactivity of the quartz flour and the reactive and slowly reactive aggregate was attributed to the highly reactive conditions used.	en_US
dc.relation	http://purl.org/au-research/grants/arc/IH150100006
dc.relation.ispartof	Concrete 2017 Advances in Materials and Structures	en_US
dc.title	Assessment of Test Methods for ASR Aggregate Reactivity	en_US
dc.type	Conference Proceeding
utslib.location.activity	Adelaide, Australia	en_US
pubs.embargo.period	Not known	en_US
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/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.finish-date	2017-10-25	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2017-10-22	en_US

Abstract:

The paper reports on the initial stages of a study into the use of phase analysis using typical laboratory techniques; thermogravimetric analysis (TG), infrared spectroscopy (FTIR) and x-ray diffraction (XRD) to investigate the alkali silica reaction (ASR) with a view to classifying the relative reactivity of aggregates. Phase analysis of ground aggregates reacted under AS1141.60.1 accelerated mortar bar test (AMBT) conditions in the presence of calcium hydroxide (CH) are reported for aggregates that have been identified as non-reactive, slowly-reactive and reactive according to the AMBT test. Results of the phase analysis correlated the AMBT classifications. The reactivity of the aggregates was also compared to the reactivity of a quartz flour of similar particle size distribution which was found to be less reactive than the reactive and slowly reactive aggregates. The reactivity of the quartz flour and the reactive and slowly reactive aggregate was attributed to the highly reactive conditions used.

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http://hdl.handle.net/10453/128539