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...
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| Format: | Journal Article |
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Elsevier BV
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/10729 |
| _version_ | 1848747612835938304 |
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| author | Deb, Partha Nath, Pradip Sarker, Prabir |
| author_facet | Deb, Partha Nath, Pradip Sarker, Prabir |
| author_sort | Deb, Partha |
| building | Curtin Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T06:51:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-10729 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:51:55Z |
| publishDate | 2015 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-107292019-05-02T08:06:57Z 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 http://creativecommons.org/licenses/by-nc-nd/4.0/ Elsevier BV fulltext |
| 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 |
| title | 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_short | 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 |
| topic | fly ash GGBFS shrinkage room temperature curing geopolymer |
| url | http://hdl.handle.net/20.500.11937/10729 |