The effect of metakaolin on the reaction products and microporosity in blended cement pastes submitted to long hydration time and high curing temperature
- 1 January 2006
- journal article
- Published by Thomas Telford Ltd. in Advances in Cement Research
- Vol. 18 (1), 1-6
- https://doi.org/10.1680/adcr.2006.18.1.1
Abstract
A study was carried out to determine the effects of high curing temperature and long-term storage on the reaction products and microporosity in metakaolin (MK)-blended cement pastes cured at 60°C after 53 months of hydration and to evaluate the stability of the hydrated phases formed during the pozzolanic reaction. The results showed that C-S-H, stratlingite and hydrogarnet were the main hydrated phases formed under these working conditions. On the other hand, the pore structure of the MK-blended pastes was refined. This demonstrates that there was no evidence of any conversion reaction from the hexagonal metastable phase to a stable cubic phase after 53 months of curingKeywords
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