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Alkaline Activation of Metakaolin: Effect of Calcium Hydroxide in the Products of Reaction
Abstract
The alkali activation of metakaolin (MK) leads to the production of high‐mechanical‐performance network‐structure materials. Adding calcium hydroxide (Ca(OH) 2 ) to the raw MK produces a somewhat different reaction: a network structure and C‐S‐H gel form. In the present study, MK and (MK + Ca(OH) 2 ) mixes were activated with 5 M and 12 M NaOH solutions and cured at 45°C. A 5 M concentration, in the absence of Ca(OH) 2 , did not produce MK activation within the test time. An activator concentration of 12 M resulted in complete activation and the formation of a network structure. When Ca(OH) 2 was present in the raw mix, a small amount of C‐S‐H gel formed.
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Cited by
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van Deventer, J. S. J., Provis, J. L., Duxson, P., & Lukey, G. C. (2007) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2006.02.044 · Cited by 580
A review on alkaline activation: New analytical perspectives
Palomo, A., Krivenko, P., Garcia-Lodeiro, I., Kavalerova, E., Maltseva, O., & Fernández-Jiménez, A. (2014) · Materiales de Construcción · doi:10.3989/mc.2014.00314 · Cited by 501
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Metadata
- Authors
- Granizo, M. L., Alonso, S., Blanco‐Varela, M. T., & Palomo, A.
- Venue
- Journal of the American Ceramic Society
- Publisher
- Wiley
- Published
- 2002-01
- Volume
- 85
- Issue
- 1
- Pages
- 225-231
- ISSN
- 0002-7820 (ISSN-L)
- 1551-2916
- OpenAlex
- W2109508357
- Cited by
- 357
- References
- 0
- FWCI
- 17.98
- Type
- journal article
- Language
- en
- Open access
- closed
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- Granizo, M. L., Alonso, S., Blanco‐Varela, M. T., & Palomo, A. (2002). Alkaline Activation of Metakaolin: Effect of Calcium Hydroxide in the Products of Reaction. Journal of the American Ceramic Society. https://doi.org/10.1111/j.1151-2916.2002.tb00070.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
