Effect of Carbonation on Compressive Strength Development of High-Slag Mortars

Field	Value	Language
dc.contributor.author	Tapas, MJ
dc.contributor.author	Yan, A
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121
dc.contributor.author	Sirivivatnanon, V
dc.date	2022-09-03
dc.date.accessioned	2022-11-03T07:24:30Z
dc.date.available	2022-07-01
dc.date.available	2022-11-03T07:24:30Z
dc.date.issued	2022-09-03
dc.identifier.citation	2022
dc.identifier.uri	http://hdl.handle.net/10453/163209
dc.description.abstract	This study investigates the effect of carbonation on the compressive strength development of OPC and OPC+slag mortars (50% and 70% slag replacement) exposed to 2%CO2, 50%RH 23°C as well as the effect of increasing slag replacement level on carbonation resistance. As expected, results showed that OPC has the highest carbonation resistance and that the higher the slag replacement level, the poorer the carbonation resistance. Compressive strength results up to 112 days show that carbonation has no detrimental effect nor benefit to the compressive strength development of high-slag mortars. Mortars cured in accelerated carbonation conditions however show slower strength development than those cured under natural carbonation conditions up to 28 days. This indicates that CO2 curing does not accelerate strength development.
dc.language	en
dc.relation	Innovative Manufacturing Cooperative Research Centre
dc.relation.ispartof	76th RILEM Annual Week 2022 and International Conference on Regeneration and Conservation of Structures
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Effect of Carbonation on Compressive Strength Development of High-Slag Mortars
dc.type	Conference Proceeding
utslib.location.activity	Kyoto, Japan
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
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2022-11-03T07:24:28Z
pubs.finish-date	2022-09-09
pubs.publication-status	Published
pubs.start-date	2022-09-03

Abstract:

This study investigates the effect of carbonation on the compressive strength development of OPC and OPC+slag mortars (50% and 70% slag replacement) exposed to 2%CO2, 50%RH 23°C as well as the effect of increasing slag replacement level on carbonation resistance. As expected, results showed that OPC has the highest carbonation resistance and that the higher the slag replacement level, the poorer the carbonation resistance. Compressive strength results up to 112 days show that carbonation has no detrimental effect nor benefit to the compressive strength development of high-slag mortars. Mortars cured in accelerated carbonation conditions however show slower strength development than those cured under natural carbonation conditions up to 28 days. This indicates that CO2 curing does not accelerate strength development.

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http://hdl.handle.net/10453/163209