Effect of supplementary cementitious materials on carbonation rate and CO2 uptake

Field	Value	Language
dc.contributor.author	Tapas, MJ
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121
dc.contributor.author	Sirivivatnanon, V
dc.date	2023-09-10
dc.date.accessioned	2023-10-24T07:32:39Z
dc.date.available	2023-10-24T07:32:39Z
dc.date.issued	2023-09-10
dc.identifier.citation	2023
dc.identifier.uri	http://hdl.handle.net/10453/172837
dc.description.abstract	Carbonation, which pertains to the reaction of carbon dioxide (CO2) with the calcium-bearing phases of the binder, is a natural process that leads to the modification of the pore solution, microstructure as well as various properties of the concrete. This process, although traditionally perceived as undesirable due to its role in increasing the susceptibility of the concrete steel reinforcement to corrosion, is gaining global interest as a possible means to reduce the carbon footprint of the construction industry. CO2 sequestration in concrete is perceived to play a key role in improving the sustainability of concrete production. The carbonation process however remains not fully understood, particularly in binder systems with supplementary cementitious materials. This paper discusses the chemistry of carbonation, the change in phases due to carbonation and the influence of binder type on the carbonation rate and CO2 uptake.
dc.language	en
dc.relation.ispartof	Conference of the Concrete Institute of Australia, Concrete 2023, Resilient and Sustainable Structures: Breaking Down Barriers
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Effect of supplementary cementitious materials on carbonation rate and CO2 uptake
dc.type	Conference Proceeding
utslib.location.activity	Perth, WA
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	2023-10-24T07:32:37Z
pubs.finish-date	2023-09-13
pubs.publication-status	Published
pubs.start-date	2023-09-10

Abstract:

Carbonation, which pertains to the reaction of carbon dioxide (CO2) with the calcium-bearing phases of the binder, is a natural process that leads to the modification of the pore solution, microstructure as well as various properties of the concrete. This process, although traditionally perceived as undesirable due to its role in increasing the susceptibility of the concrete steel reinforcement to corrosion, is gaining global interest as a possible means to reduce the carbon footprint of the construction industry. CO2 sequestration in concrete is perceived to play a key role in improving the sustainability of concrete production. The carbonation process however remains not fully understood, particularly in binder systems with supplementary cementitious materials. This paper discusses the chemistry of carbonation, the change in phases due to carbonation and the influence of binder type on the carbonation rate and CO2 uptake.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/172837