Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition
Fly ash based geopolymer is a prospective construction material for its environmental and functional benefits over ordinary Portland cement concrete. However the necessity of heat curing is one of the major drawbacks that hinder its application in cast-in-situ concreting. The main focus of this stud...
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| Other Authors: | |
| Format: | Conference Paper |
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Concrete Institute of Australia
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/47991 |
| _version_ | 1848757986568175616 |
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| author | Nath, Pradip Sarker, Prabir |
| author2 | Vinh Dao |
| author_facet | Vinh Dao Nath, Pradip Sarker, Prabir |
| author_sort | Nath, Pradip |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Fly ash based geopolymer is a prospective construction material for its environmental and functional benefits over ordinary Portland cement concrete. However the necessity of heat curing is one of the major drawbacks that hinder its application in cast-in-situ concreting. The main focus of this study is to develop fly ash-based geopolymer concretes suitable for ambient curing condition. Geopolymer mortar was prepared with Class F fly ash and ordinary Portland cement (OPC) was added as an additive in different proportions with fly ash to enhance the early age properties of concrete. Fly ash was activated by a mixture of sodium hydroxide and sodium silicate solutions. Samples were cured in ambient condition (about 23oC and RH 65±10%) until tested. The workability in terms of flow, setting time and compressive strength of mixtures blended with OPC were compared with those of the control geopolymer mixture having fly ash only as the binder. In ambient temperature, the geopolymer pastes using fly ash only may take more than 24 hours to set. Inclusion of OPC reduced the setting time to acceptable limits. The early-age compressive strength improved significantly by the inclusion of OPC as compared to that of control geopolymer concrete cured at ambient condition. |
| first_indexed | 2025-11-14T09:36:48Z |
| format | Conference Paper |
| id | curtin-20.500.11937-47991 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:36:48Z |
| publishDate | 2013 |
| publisher | Concrete Institute of Australia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-479912023-02-13T08:01:36Z Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition Nath, Pradip Sarker, Prabir Vinh Dao Peter Dux fly ash setting time geopolymer Ambient curing OPC Fly ash based geopolymer is a prospective construction material for its environmental and functional benefits over ordinary Portland cement concrete. However the necessity of heat curing is one of the major drawbacks that hinder its application in cast-in-situ concreting. The main focus of this study is to develop fly ash-based geopolymer concretes suitable for ambient curing condition. Geopolymer mortar was prepared with Class F fly ash and ordinary Portland cement (OPC) was added as an additive in different proportions with fly ash to enhance the early age properties of concrete. Fly ash was activated by a mixture of sodium hydroxide and sodium silicate solutions. Samples were cured in ambient condition (about 23oC and RH 65±10%) until tested. The workability in terms of flow, setting time and compressive strength of mixtures blended with OPC were compared with those of the control geopolymer mixture having fly ash only as the binder. In ambient temperature, the geopolymer pastes using fly ash only may take more than 24 hours to set. Inclusion of OPC reduced the setting time to acceptable limits. The early-age compressive strength improved significantly by the inclusion of OPC as compared to that of control geopolymer concrete cured at ambient condition. 2013 Conference Paper http://hdl.handle.net/20.500.11937/47991 Concrete Institute of Australia restricted |
| spellingShingle | fly ash setting time geopolymer Ambient curing OPC Nath, Pradip Sarker, Prabir Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title | Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title_full | Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title_fullStr | Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title_full_unstemmed | Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title_short | Development of Fly Ash Based Geopolymer Concrete for Ambient Curing Condition |
| title_sort | development of fly ash based geopolymer concrete for ambient curing condition |
| topic | fly ash setting time geopolymer Ambient curing OPC |
| url | http://hdl.handle.net/20.500.11937/47991 |