High temperature behaviour of ambient cured alkali-activated materials based on ladle slag
This paper investigates the thermal properties of alkali activated materials (AAMs) made from ladle slag, a by-product from electric arc furnaces. AAMs have the potential to exhibit improved durability in high temperature environments over conventional materials such as ordinary Portland cement due...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Pergamon- Elservier
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/32529 |
| _version_ | 1848753688913379328 |
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| author | Murri, A. Rickard, William Bignozzi, M. Van Riessen, Arie |
| author_facet | Murri, A. Rickard, William Bignozzi, M. Van Riessen, Arie |
| author_sort | Murri, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper investigates the thermal properties of alkali activated materials (AAMs) made from ladle slag, a by-product from electric arc furnaces. AAMs have the potential to exhibit improved durability in high temperature environments over conventional materials such as ordinary Portland cement due to a reduced concentration of hydrated phases in their structure. A series of samples with varying compositional ratios was synthesised from a combination of ladle slag and metakaolin or ladle slag and fly ash. Ambient cured AAMs of moderate compressive strengths (between 11 and 46 MPa) were achieved. Samples were exposed to temperatures up to 1000 °C and analysed for residual strength, thermal expansion, phase and microstructural changes. The ladle slag and fly ash based AAMs exhibited superior strength gains and better thermal stability than the ladle slag and metakaolin based AAMs believed to be due to unstable C–A–S–H phases formed in the latter group of samples. |
| first_indexed | 2025-11-14T08:28:30Z |
| format | Journal Article |
| id | curtin-20.500.11937-32529 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:28:30Z |
| publishDate | 2013 |
| publisher | Pergamon- Elservier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-325292017-09-13T15:22:41Z High temperature behaviour of ambient cured alkali-activated materials based on ladle slag Murri, A. Rickard, William Bignozzi, M. Van Riessen, Arie microstructure (B) slag x-ray diffraction (B) alkali activated cements (D) This paper investigates the thermal properties of alkali activated materials (AAMs) made from ladle slag, a by-product from electric arc furnaces. AAMs have the potential to exhibit improved durability in high temperature environments over conventional materials such as ordinary Portland cement due to a reduced concentration of hydrated phases in their structure. A series of samples with varying compositional ratios was synthesised from a combination of ladle slag and metakaolin or ladle slag and fly ash. Ambient cured AAMs of moderate compressive strengths (between 11 and 46 MPa) were achieved. Samples were exposed to temperatures up to 1000 °C and analysed for residual strength, thermal expansion, phase and microstructural changes. The ladle slag and fly ash based AAMs exhibited superior strength gains and better thermal stability than the ladle slag and metakaolin based AAMs believed to be due to unstable C–A–S–H phases formed in the latter group of samples. 2013 Journal Article http://hdl.handle.net/20.500.11937/32529 10.1016/j.cemconres.2012.09.011 Pergamon- Elservier restricted |
| spellingShingle | microstructure (B) slag x-ray diffraction (B) alkali activated cements (D) Murri, A. Rickard, William Bignozzi, M. Van Riessen, Arie High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title | High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title_full | High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title_fullStr | High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title_full_unstemmed | High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title_short | High temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| title_sort | high temperature behaviour of ambient cured alkali-activated materials based on ladle slag |
| topic | microstructure (B) slag x-ray diffraction (B) alkali activated cements (D) |
| url | http://hdl.handle.net/20.500.11937/32529 |