Shrinkage of blended cement concrete with fly ash or limestone calcined clay

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

Shrinkage of blended cement concrete with fly ash or limestone calcined clay

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

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Publisher:: Springer Nature
Publication Type:: Journal Article
Citation:: Materials and Structures/Materiaux et Constructions, 2023, 56, (1), pp. 15
Issue Date:: 2023-02-01

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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	2023-05-04T06:15:07Z
dc.date.available	2023-05-04T06:15:07Z
dc.date.issued	2023-02-01
dc.identifier.citation	Materials and Structures/Materiaux et Constructions, 2023, 56, (1), pp. 15
dc.identifier.issn	1359-5997
dc.identifier.issn	1871-6873
dc.identifier.uri	http://hdl.handle.net/10453/170193
dc.description.abstract	This study investigates the shrinkage of two sustainable aluminosilicate blends with fly ash or limestone-calcined clay (LC3). Paste and concrete were prepared using these SCMs for the highest possible replacement of binder without compromising the strength. The chemical and autogenous shrinkage were assessed for paste samples and further investigation were conducted on hydration by thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). Opting for an engineering approach, comparison among different segments of shrinkage i.e., autogenous, drying and total shrinkage of concrete having a specific compressive strength were considered. The initial investigation on paste samples highlighted the dissimilarities in shrinkage and hydration of fly ash and calcined clay. LC3 hydrated faster compared to fly ash leading to greater autogenous shrinkage. The high autogenous shrinkage in the LC3 blend was compensated by a low drying shrinkage for a specific compressive strength. Considering the replacement level of cement, shrinkage, and ecological impact, LC3 proved to be a more sustainable and eco-friendly concrete compared to fly ash.
dc.language	en
dc.publisher	Springer Nature
dc.relation	http://purl.org/au-research/grants/arc/LP170100912
dc.relation.ispartof	Materials and Structures/Materiaux et Constructions
dc.relation.isbasedon	10.1617/s11527-023-02099-8
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering
dc.subject.classification	Building & Construction
dc.title	Shrinkage of blended cement concrete with fly ash or limestone calcined clay
dc.type	Journal Article
utslib.citation.volume	56
utslib.for	0905 Civil Engineering
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	open_access	*
dc.date.updated	2023-05-04T06:15:04Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	56
utslib.citation.issue	1

Abstract:

This study investigates the shrinkage of two sustainable aluminosilicate blends with fly ash or limestone-calcined clay (LC3). Paste and concrete were prepared using these SCMs for the highest possible replacement of binder without compromising the strength. The chemical and autogenous shrinkage were assessed for paste samples and further investigation were conducted on hydration by thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). Opting for an engineering approach, comparison among different segments of shrinkage i.e., autogenous, drying and total shrinkage of concrete having a specific compressive strength were considered. The initial investigation on paste samples highlighted the dissimilarities in shrinkage and hydration of fly ash and calcined clay. LC3 hydrated faster compared to fly ash leading to greater autogenous shrinkage. The high autogenous shrinkage in the LC3 blend was compensated by a low drying shrinkage for a specific compressive strength. Considering the replacement level of cement, shrinkage, and ecological impact, LC3 proved to be a more sustainable and eco-friendly concrete compared to fly ash.

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http://hdl.handle.net/10453/170193