Thermal treatment of kaolin clay to obtain metakaolin

By B. Ilic, A. Mitrović, Ljiljana Miličić. 2010

160 citations recorded by the source corpus.

The metakaolin was produced by thermal treatment (calcination) of the starting high-quality kaolin clay from Serbia. The optimal calcination parameters, for which nearly complete dehydroxylation of the material was achieved, are: temperature 650°C and heating time of 90 min. The conversion of the kaolinite to metakaolinite was confirmed by XRD and IR analyses of the starting and thermally treated kaolin samples. The pozzolanic activity was determined by Chapelle test. The obtained value 0.65 g Ca(OH)2/g of metakaolin indicates that produced metakaolin may be used as supplementary cementitious material.

Subfields: Biomaterials, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/c258dd2b755c8bb403d2c4c79873cbba732ff487

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In Biomaterials

1. Pascaline Patureau
2. A. Marsh
3. Ö. Cizer
4. Ahmed Khalifa
5. Y. Pontikes
6. Andrew Heath
7. S. A. Bernal

In Civil and Structural Engineering

1. Pascaline Patureau
2. A. Marsh
3. Ö. Cizer
4. Ahmed Khalifa
5. Y. Pontikes
6. Andrew Heath
7. S. A. Bernal
8. J. Provis

Citations in the corpus

• Advances in alkali-activation of clay minerals (2020, background): “Complete dehydroxylation of kaolinite occurs in the temperatures range of 650–700 °C [36,166,201].”