PROPERTIES OF METAKAOLIN CONCRETE – A REVIEW

Khamchin Moghaddam, F; Sri Ravindrarajah, R; Sirivivatnanon, V

PROPERTIES OF METAKAOLIN CONCRETE – A REVIEW

Khamchin Moghaddam, F

Sri Ravindrarajah, R Sirivivatnanon, V

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Publication Type:: Conference Proceeding
Citation:: 2015
Issue Date:: 2015-09-25

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Field	Value	Language
dc.contributor.author	Khamchin Moghaddam, F https://orcid.org/0000-0002-4087-8032	en_US
dc.contributor.author	Sri Ravindrarajah, R	en_US
dc.contributor.author	Sirivivatnanon, V https://orcid.org/0000-0003-1901-6064	en_US
dc.date	2015-09-15	en_US
dc.date.available	2015-05-15	en_US
dc.date.issued	2015-09-25	en_US
dc.identifier.citation	2015	en_US
dc.identifier.isbn	978-987-3838-02-6	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37748
dc.description.abstract	The use of cement supplementary materials in structural concrete is widely accepted by the construction industry for technical, economical and environmental reasons. Metakaolin (MK), produced by calcining kaolinite at high temperature is suitable for concrete production due to its pozzolanic property. This paper reviews the some of the research published on effects of using MK on engineering properties of structural concrete as a cement replacement material. The review shows that the use of relatively finer MK to partially replace cement reduces the consistency of concrete and enhanced the strengths, deformational and durability properties of concrete. MK is most effective in enhancing compressive strength (particularly at early ages) compared to other strengths and modulus of elasticity was least improved. Drying shrinkage and creep of MK concretes are lower than those for the control concrete. The high pozzolanic reactivity of MK with calcium hydroxide contributes to both porosity reduction and pore-structure refinement in the pastes and concrete. As the consequence, the durability of concrete is improved through increased resistance to chloride penetration and controlled expansion, due to alkali-silica reaction and sodium sulphate attack.	en_US
dc.relation.ispartof	International Conference on Sustainable Structural Concrete	en_US
dc.title	PROPERTIES OF METAKAOLIN CONCRETE – A REVIEW	en_US
dc.type	Conference Proceeding
utslib.location.activity	La Plata, Argentina	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	1099 Other Technology	en_US
pubs.embargo.period	Not known	en_US
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	en_US
pubs.finish-date	2015-09-18	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2015-09-15	en_US

Abstract:

The use of cement supplementary materials in structural concrete is widely accepted by the construction industry for technical, economical and environmental reasons. Metakaolin (MK), produced by calcining kaolinite at high temperature is suitable for concrete production due to its pozzolanic property. This paper reviews the some of the research published on effects of using MK on engineering properties of structural concrete as a cement replacement material. The review shows that the use of relatively finer MK to partially replace cement reduces the consistency of concrete and enhanced the strengths, deformational and durability properties of concrete. MK is most effective in enhancing compressive strength (particularly at early ages) compared to other strengths and modulus of elasticity was least improved. Drying shrinkage and creep of MK concretes are lower than those for the control concrete. The high pozzolanic reactivity of MK with calcium hydroxide contributes to both porosity reduction and pore-structure refinement in the pastes and concrete. As the consequence, the durability of concrete is improved through increased resistance to chloride penetration and controlled expansion, due to alkali-silica reaction and sodium sulphate attack.

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http://hdl.handle.net/10453/37748