Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement
The benefits of using fly ash as a partial replacement for cement in concrete are well documented. This paper presents the strength development and hydration heat properties of concrete using Class F fly ash sourced from Western Australia. Compressive strengths at different ages were determined and...
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| Format: | Conference Paper |
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Concrete Institute of Australia
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/33479 |
| _version_ | 1848753957763022848 |
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| author | Sarker, Prabir McKenzie, Luke |
| author2 | R I Gilbert |
| author_facet | R I Gilbert Sarker, Prabir McKenzie, Luke |
| author_sort | Sarker, Prabir |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The benefits of using fly ash as a partial replacement for cement in concrete are well documented. This paper presents the strength development and hydration heat properties of concrete using Class F fly ash sourced from Western Australia. Compressive strengths at different ages were determined and semi-adiabatic temperature rise during the initial stage of hydration was measured by thermocouples. The 28-day compressive strengths of two control concrete mixtures were 62 and 68 MPa. It was found from the experimental results that the average 28-day compressive strengths of concretes with 30% and 40% cement replacements by fly ash were 84% and 63% of the strengths of the respective control mixtures. However, the 90-day strength of concrete with 30% cement replacement was equal to the strength of the control concrete. A 20% reduction in the maximum temperature was observed in the concrete with 40% cement replacement by the fly ash. It is found from the test data that the percentage reduction in the maximum temperature of fly ash concrete can be estimated as one-half of the percentage replacement of cement by fly ash. |
| first_indexed | 2025-11-14T08:32:46Z |
| format | Conference Paper |
| id | curtin-20.500.11937-33479 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:32:46Z |
| publishDate | 2009 |
| publisher | Concrete Institute of Australia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-334792017-01-30T13:37:24Z Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement Sarker, Prabir McKenzie, Luke R I Gilbert STRENGTH (concrete) CONCRETE TESTING HYDRATION FLY ASH TEMPERATURE EFFECTS The benefits of using fly ash as a partial replacement for cement in concrete are well documented. This paper presents the strength development and hydration heat properties of concrete using Class F fly ash sourced from Western Australia. Compressive strengths at different ages were determined and semi-adiabatic temperature rise during the initial stage of hydration was measured by thermocouples. The 28-day compressive strengths of two control concrete mixtures were 62 and 68 MPa. It was found from the experimental results that the average 28-day compressive strengths of concretes with 30% and 40% cement replacements by fly ash were 84% and 63% of the strengths of the respective control mixtures. However, the 90-day strength of concrete with 30% cement replacement was equal to the strength of the control concrete. A 20% reduction in the maximum temperature was observed in the concrete with 40% cement replacement by the fly ash. It is found from the test data that the percentage reduction in the maximum temperature of fly ash concrete can be estimated as one-half of the percentage replacement of cement by fly ash. 2009 Conference Paper http://hdl.handle.net/20.500.11937/33479 Concrete Institute of Australia fulltext |
| spellingShingle | STRENGTH (concrete) CONCRETE TESTING HYDRATION FLY ASH TEMPERATURE EFFECTS Sarker, Prabir McKenzie, Luke Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title | Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title_full | Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title_fullStr | Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title_full_unstemmed | Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title_short | Strength and Hydration Heat of Concrete using Fly Ash as a Partial Replacement of Cement |
| title_sort | strength and hydration heat of concrete using fly ash as a partial replacement of cement |
| topic | STRENGTH (concrete) CONCRETE TESTING HYDRATION FLY ASH TEMPERATURE EFFECTS |
| url | http://hdl.handle.net/20.500.11937/33479 |