Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature

Recent studies have shown that blending of ground granulated blast furnace slag (GGBFS) with low-calcium fly ash can have significant effects on the setting and early strength development of geopolymers cured at room temperature. This paper presents the shrinkage behaviour of geopolymer concrete mix...

Full description

Bibliographic Details
Main Authors:	Deb, Partha, Nath, Pradip, Sarker, Prabir
Format:	Journal Article
Published:	Elsevier BV 2015
Subjects:	fly ash GGBFS shrinkage room temperature curing geopolymer
Online Access:	http://hdl.handle.net/20.500.11937/10729

id	curtin-20.500.11937-10729
recordtype	eprints
spelling	curtin-20.500.11937-107292017-09-13T14:55:05Z Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature Deb, Partha Nath, Pradip Sarker, Prabir fly ash GGBFS shrinkage room temperature curing geopolymer Recent studies have shown that blending of ground granulated blast furnace slag (GGBFS) with low-calcium fly ash can have significant effects on the setting and early strength development of geopolymers cured at room temperature. This paper presents the shrinkage behaviour of geopolymer concrete mixtures in which class F fly ash was replaced with 10% or 20% GGBFS and the sodium silicate to sodium hydroxide (SS/SH) ratio was either 1.5 or 2.5. Shrinkage of 4 geopolymer and 1 ordinary Portland cement (OPC) concrete mixtures cured at room temperature were studied. Comparisons are made between the shrinkage behaviours of geopolymer concretes with different mixture proportions and those of the OPC concrete. It was found that shrinkage decreased with the increase of slag content and decrease of SS/SH ratio in geopolymer concrete cured at room temperature. The shrinkage of geopolymer concrete up to the age of 180 days was found to be comparable to that of OPC concrete of similar compressive strength. Thus, shrinkage of geopolymer concrete could be reduced to values within the limit recommended in the Australian Standards for normal OPC concrete. 2015 Journal Article http://hdl.handle.net/20.500.11937/10729 10.1016/j.proeng.2015.11.066 Elsevier BV fulltext
repository_type	Digital Repository
institution_category	Local University
institution	Curtin University Malaysia
building	Curtin Institutional Repository
collection	Online Access
topic	fly ash GGBFS shrinkage room temperature curing geopolymer
spellingShingle	fly ash GGBFS shrinkage room temperature curing geopolymer Deb, Partha Nath, Pradip Sarker, Prabir Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
description	Recent studies have shown that blending of ground granulated blast furnace slag (GGBFS) with low-calcium fly ash can have significant effects on the setting and early strength development of geopolymers cured at room temperature. This paper presents the shrinkage behaviour of geopolymer concrete mixtures in which class F fly ash was replaced with 10% or 20% GGBFS and the sodium silicate to sodium hydroxide (SS/SH) ratio was either 1.5 or 2.5. Shrinkage of 4 geopolymer and 1 ordinary Portland cement (OPC) concrete mixtures cured at room temperature were studied. Comparisons are made between the shrinkage behaviours of geopolymer concretes with different mixture proportions and those of the OPC concrete. It was found that shrinkage decreased with the increase of slag content and decrease of SS/SH ratio in geopolymer concrete cured at room temperature. The shrinkage of geopolymer concrete up to the age of 180 days was found to be comparable to that of OPC concrete of similar compressive strength. Thus, shrinkage of geopolymer concrete could be reduced to values within the limit recommended in the Australian Standards for normal OPC concrete.
format	Journal Article
author	Deb, Partha Nath, Pradip Sarker, Prabir
author_facet	Deb, Partha Nath, Pradip Sarker, Prabir
author_sort	Deb, Partha
title	Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
title_short	Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
title_full	Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
title_fullStr	Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
title_full_unstemmed	Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
title_sort	drying shrinkage of slag blended fly ash geopolymer concrete cured at room temperature
publisher	Elsevier BV
publishDate	2015
url	http://hdl.handle.net/20.500.11937/10729
first_indexed	2018-09-06T18:45:50Z
last_indexed	2018-09-06T18:45:50Z
_version_	1610884894862344192

Drying Shrinkage of slag blended fly ash geopolymer concrete cured at room temperature

Similar Items