carbonation behaviour of concrete with SCM incorporation according to TfNSW QA specification 3211 requirements

Mehdizadeh Miyandehi, B

carbonation behaviour of concrete with SCM incorporation according to TfNSW QA specification 3211 requirements

Mehdizadeh Miyandehi, B

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Publication Type:: Presentation
Citation:: 2023
Issue Date:: 2023-03-23

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Field	Value	Language
dc.contributor.author	Mehdizadeh Miyandehi, B https://orcid.org/0000-0003-3545-9033
dc.date.accessioned	2023-11-09T02:14:17Z
dc.date.available	2023-11-09T02:14:17Z
dc.date.issued	2023-03-23
dc.identifier.citation	2023
dc.identifier.uri	http://hdl.handle.net/10453/173261
dc.description.abstract	The carbonation of concrete in structures causes deterioration and service life reduction. When carbon dioxide (CO2) from the surrounding atmosphere reacts with cement hydration products in concrete and imposes an environmental load, calcium carbonate forms, and the carbonation process begins. Validating the minimum SL cement content required for the carbonation resistance formulae in the TfNSW 3211 specification is important parts of this study. In this research, the carbonation behaviour of concrete mixes utilising 250, 300, and 350 kg/m3 binder content, a fixed water-to-binder ratio of 0.45, and cement replacement levels of 40-70% GGBFS and 15-20% fly ash, will be investigated. Compressive strength, flexural strength, drying shrinkage and accelerated carbonation depth results will be reported. The relationship between carbonation depth and carbonation rate using GGBFS and fly ash will also be evaluated.
dc.language	en
dc.rights	info:eu-repo/semantics/openAccess
dc.title	carbonation behaviour of concrete with SCM incorporation according to TfNSW QA specification 3211 requirements
dc.type	Presentation
utslib.location.activity	UTS Tech lab
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	2023-11-09T02:13:49Z

Abstract:

The carbonation of concrete in structures causes deterioration and service life reduction. When carbon dioxide (CO2) from the surrounding atmosphere reacts with cement hydration products in concrete and imposes an environmental load, calcium carbonate forms, and the carbonation process begins. Validating the minimum SL cement content required for the carbonation resistance formulae in the TfNSW 3211 specification is important parts of this study. In this research, the carbonation behaviour of concrete mixes utilising 250, 300, and 350 kg/m3 binder content, a fixed water-to-binder ratio of 0.45, and cement replacement levels of 40-70% GGBFS and 15-20% fly ash, will be investigated. Compressive strength, flexural strength, drying shrinkage and accelerated carbonation depth results will be reported. The relationship between carbonation depth and carbonation rate using GGBFS and fly ash will also be evaluated.

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http://hdl.handle.net/10453/173261