Mitigation of alkali-silica reaction by limestone calcined clay cement (LC3)

Nguyen, QD; Kim, T; Castel, A

Mitigation of alkali-silica reaction by limestone calcined clay cement (LC3)

Nguyen, QD Kim, T Castel, A

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Cement and Concrete Research, 2020, 137
Issue Date:: 2020-11-01

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Field	Value	Language
dc.contributor.author	Nguyen, QD
dc.contributor.author	Kim, T
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.date.accessioned	2021-03-07T02:59:29Z
dc.date.available	2021-03-07T02:59:29Z
dc.date.issued	2020-11-01
dc.identifier.citation	Cement and Concrete Research, 2020, 137
dc.identifier.issn	0008-8846
dc.identifier.issn	1873-3948
dc.identifier.uri	http://hdl.handle.net/10453/146838
dc.description.abstract	© 2020 Elsevier Ltd The study aims to investigate the influence of limestone calcined clay cement (LC3) on the alkali-silica reaction (ASR). Kinetics and sequence of ASR formation were monitored using the model reactant method. Accelerated mortar bar test (AMBT) was also conducted to evaluate the effect LC3 in the ASR expansion. 30 wt% replacement by flash calcined clay and limestone in binder reduced the mortar expansion lower than the limit of Australian Standard. From the model reactant method, the additional calcium rich phases in LC3 model reactant system seem to delay the ASR gel formation or produce high Ca/Si ASR products, relatively rigid C-S-H and C-A-S-H that has less expansive capability. The current results reveal the possibility to utilize model reactant experiments to monitor the formation sequence of ASR gels with the presence of calcined clay and limestone due to the consistent results observed between model reactant experiments and real LC3-based specimens.
dc.language	English
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation	http://purl.org/au-research/grants/arc/DP160104731
dc.relation.ispartof	Cement and Concrete Research
dc.relation.isbasedon	10.1016/j.cemconres.2020.106176
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Mitigation of alkali-silica reaction by limestone calcined clay cement (LC3)
dc.type	Journal Article
utslib.citation.volume	137
utslib.for	0905 Civil Engineering
utslib.for	0904 Chemical Engineering
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	closed_access	*
dc.date.updated	2021-03-07T02:59:25Z
pubs.publication-status	Published
pubs.volume	137

Abstract:

© 2020 Elsevier Ltd The study aims to investigate the influence of limestone calcined clay cement (LC3) on the alkali-silica reaction (ASR). Kinetics and sequence of ASR formation were monitored using the model reactant method. Accelerated mortar bar test (AMBT) was also conducted to evaluate the effect LC3 in the ASR expansion. 30 wt% replacement by flash calcined clay and limestone in binder reduced the mortar expansion lower than the limit of Australian Standard. From the model reactant method, the additional calcium rich phases in LC3 model reactant system seem to delay the ASR gel formation or produce high Ca/Si ASR products, relatively rigid C-S-H and C-A-S-H that has less expansive capability. The current results reveal the possibility to utilize model reactant experiments to monitor the formation sequence of ASR gels with the presence of calcined clay and limestone due to the consistent results observed between model reactant experiments and real LC3-based specimens.

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http://hdl.handle.net/10453/146838