Distinct Effect of Hydration of Calcined Kaolinitic Clay-Limestone Blended Cement on Microstructure and Autogenous Shrinkage

Afroz, S; Kim, T; Castel, A

Distinct Effect of Hydration of Calcined Kaolinitic Clay-Limestone Blended Cement on Microstructure and Autogenous Shrinkage

Afroz, S Kim, T Castel, A

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Materials in Civil Engineering, 2023, 35, (12)
Issue Date:: 2023-12-01

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Field	Value	Language
dc.contributor.author	Afroz, S
dc.contributor.author	Kim, T
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.date.accessioned	2024-03-08T05:43:00Z
dc.date.available	2024-03-08T05:43:00Z
dc.date.issued	2023-12-01
dc.identifier.citation	Journal of Materials in Civil Engineering, 2023, 35, (12)
dc.identifier.issn	0899-1561
dc.identifier.issn	1943-5533
dc.identifier.uri	http://hdl.handle.net/10453/176365
dc.description.abstract	This paper investigates the microstructure and autogenous shrinkage of calcined kaolinitic clay-limestone (LC) blended cement paste composites up to 200 days. The calcined clay-limestone content ranged between 20% and 65%. The microstructural parameters were studied using X-ray diffraction (XRD), thermogravimetric analysis (TGA), nitrogen adsorption (NAD), and Fourier transform infrared (FTIR) spectroscopy. The results showed that calcined kaolinitic clay-limestone blends developed higher autogenous shrinkage, faster hydration, and finer pore structure compared to the reference cement mixture. Autogenous shrinkage was the highest at 27% cement replacement and then decreased with further increases in replacement level. Both hydration and pore size distribution led to the development of high autogenous shrinkage for all calcined kaolinitic clay-limestone (LC) blends.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation	http://purl.org/au-research/grants/arc/LP170100912
dc.relation.ispartof	Journal of Materials in Civil Engineering
dc.relation.isbasedon	10.1061/JMCEE7.MTENG-16184
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0912 Materials Engineering
dc.subject.classification	Building & Construction
dc.subject.classification	4005 Civil engineering
dc.subject.classification	4016 Materials engineering
dc.title	Distinct Effect of Hydration of Calcined Kaolinitic Clay-Limestone Blended Cement on Microstructure and Autogenous Shrinkage
dc.type	Journal Article
utslib.citation.volume	35
utslib.for	0905 Civil Engineering
utslib.for	0912 Materials 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	closed_access	*
dc.date.updated	2024-03-08T05:42:58Z
pubs.issue	12
pubs.publication-status	Published
pubs.volume	35
utslib.citation.issue	12

Abstract:

This paper investigates the microstructure and autogenous shrinkage of calcined kaolinitic clay-limestone (LC) blended cement paste composites up to 200 days. The calcined clay-limestone content ranged between 20% and 65%. The microstructural parameters were studied using X-ray diffraction (XRD), thermogravimetric analysis (TGA), nitrogen adsorption (NAD), and Fourier transform infrared (FTIR) spectroscopy. The results showed that calcined kaolinitic clay-limestone blends developed higher autogenous shrinkage, faster hydration, and finer pore structure compared to the reference cement mixture. Autogenous shrinkage was the highest at 27% cement replacement and then decreased with further increases in replacement level. Both hydration and pore size distribution led to the development of high autogenous shrinkage for all calcined kaolinitic clay-limestone (LC) blends.

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http://hdl.handle.net/10453/176365