Effect of limestone in General Purpose cement on autogenous shrinkage of high strength GGBFS concrete and pastes

Afroz, S; Zhang, Y; Nguyen, QD; Kim, T; Castel, A

Effect of limestone in General Purpose cement on autogenous shrinkage of high strength GGBFS concrete and pastes

Afroz, S Zhang, Y Nguyen, QD Kim, T Castel, A

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2022, 327, pp. 126949-126949
Issue Date:: 2022-04

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Field	Value	Language
dc.contributor.author	Afroz, S
dc.contributor.author	Zhang, Y
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	2022-04-29T01:23:26Z
dc.date.available	2022-04-29T01:23:26Z
dc.date.issued	2022-04
dc.identifier.citation	Construction and Building Materials, 2022, 327, pp. 126949-126949
dc.identifier.issn	0950-0618
dc.identifier.issn	1879-0526
dc.identifier.uri	http://hdl.handle.net/10453/156787
dc.description.abstract	This work investigates the autogenous shrinkage of pastes and concretes prepared using General Purpose cement and GGBFS (40% and 60%) up to 100 days. To determine the underlying factors influencing autogenous shrinkage, hydration progression and evolution of microstructure were investigated. Results showed that autogenous shrinkage of GGBFS blends continuously increased after 28 days (until 100 days) whereas the control samples reached a plateau after about 28 days. Late reaction between limestone from the General Purpose cement and alumina from GGBFS progressed untill 90 days forming a high amount of monocarboaluminates. General Purpose cement blends with high GGBFS content can behave as ternary blends and not as binary blends due to the small amount of limestone usually added to General Purpose cements. These long term reactions lead to a significant refinement of the pore structure which is responsible of the late autogenous shrinkage in GGBFS blends.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	http://purl.org/au-research/grants/arc/LP170100912
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2022.126949
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Effect of limestone in General Purpose cement on autogenous shrinkage of high strength GGBFS concrete and pastes
dc.type	Journal Article
utslib.citation.volume	327
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
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
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-04-29T01:23:24Z
pubs.publication-status	Accepted
pubs.volume	327

Abstract:

This work investigates the autogenous shrinkage of pastes and concretes prepared using General Purpose cement and GGBFS (40% and 60%) up to 100 days. To determine the underlying factors influencing autogenous shrinkage, hydration progression and evolution of microstructure were investigated. Results showed that autogenous shrinkage of GGBFS blends continuously increased after 28 days (until 100 days) whereas the control samples reached a plateau after about 28 days. Late reaction between limestone from the General Purpose cement and alumina from GGBFS progressed untill 90 days forming a high amount of monocarboaluminates. General Purpose cement blends with high GGBFS content can behave as ternary blends and not as binary blends due to the small amount of limestone usually added to General Purpose cements. These long term reactions lead to a significant refinement of the pore structure which is responsible of the late autogenous shrinkage in GGBFS blends.

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http://hdl.handle.net/10453/156787