Properties of fly ash based geopolymer for curing at ambient temperature
Geopolymer concrete is a promising material with regard to precast construction for the ease of parametric and curing control. Most of the studies available in the literature used heat curing to demonstrate the properties of geopolymer mixture. This study aimed to achieve fly ash-based geopolymer su...
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| Other Authors: | |
| Format: | Conference Paper |
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Precast/Prestressed Concrete Institute
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/44817 |
| _version_ | 1848757110073982976 |
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| author | Nath, Pradip Sarker, Prabir |
| author2 | Not listed |
| author_facet | Not listed Nath, Pradip Sarker, Prabir |
| author_sort | Nath, Pradip |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Geopolymer concrete is a promising material with regard to precast construction for the ease of parametric and curing control. Most of the studies available in the literature used heat curing to demonstrate the properties of geopolymer mixture. This study aimed to achieve fly ash-based geopolymer suitable for ambient curing condition and eliminate energy consuming heat curing process. Class F fly ash was used as the base material which was reacted by sodium hydroxide and sodium silicate solutions. Ground granulated blast furnace slag (GGBFS) and calcium hydroxide (CH) was added in different proportions to the mixture. Setting times of geopolymer pastes and compressive strength after curing at 20-23°C were investigated. Results were compared with a control geopolymer mixture designed with fly ash alone as the binder. Inclusion of additives helped achieve setting time and compressive strength comparable to those of ordinary Portland cement (OPC). Setting time and compressive strength of geopolymers varied with the variation of alkaline activator to fly ash ratio. Generally, fly ash blended with slag or calcium hydroxide influenced the properties of geopolymer concrete cured at ambient temperature. |
| first_indexed | 2025-11-14T09:22:53Z |
| format | Conference Paper |
| id | curtin-20.500.11937-44817 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:22:53Z |
| publishDate | 2012 |
| publisher | Precast/Prestressed Concrete Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-448172017-01-30T15:16:36Z Properties of fly ash based geopolymer for curing at ambient temperature Nath, Pradip Sarker, Prabir Not listed fly ash slag setting time geopolymer ambient curing Geopolymer concrete is a promising material with regard to precast construction for the ease of parametric and curing control. Most of the studies available in the literature used heat curing to demonstrate the properties of geopolymer mixture. This study aimed to achieve fly ash-based geopolymer suitable for ambient curing condition and eliminate energy consuming heat curing process. Class F fly ash was used as the base material which was reacted by sodium hydroxide and sodium silicate solutions. Ground granulated blast furnace slag (GGBFS) and calcium hydroxide (CH) was added in different proportions to the mixture. Setting times of geopolymer pastes and compressive strength after curing at 20-23°C were investigated. Results were compared with a control geopolymer mixture designed with fly ash alone as the binder. Inclusion of additives helped achieve setting time and compressive strength comparable to those of ordinary Portland cement (OPC). Setting time and compressive strength of geopolymers varied with the variation of alkaline activator to fly ash ratio. Generally, fly ash blended with slag or calcium hydroxide influenced the properties of geopolymer concrete cured at ambient temperature. 2012 Conference Paper http://hdl.handle.net/20.500.11937/44817 Precast/Prestressed Concrete Institute restricted |
| spellingShingle | fly ash slag setting time geopolymer ambient curing Nath, Pradip Sarker, Prabir Properties of fly ash based geopolymer for curing at ambient temperature |
| title | Properties of fly ash based geopolymer for curing at ambient temperature |
| title_full | Properties of fly ash based geopolymer for curing at ambient temperature |
| title_fullStr | Properties of fly ash based geopolymer for curing at ambient temperature |
| title_full_unstemmed | Properties of fly ash based geopolymer for curing at ambient temperature |
| title_short | Properties of fly ash based geopolymer for curing at ambient temperature |
| title_sort | properties of fly ash based geopolymer for curing at ambient temperature |
| topic | fly ash slag setting time geopolymer ambient curing |
| url | http://hdl.handle.net/20.500.11937/44817 |