Talc-based cementitious products: Effect of talc calcination
This study reports the use of calcined talc for cementitious products making. The calcination is used to enhance the availability of magnesium from talc to react with phosphate for cement phase formation. It is shown that previous calcination of talc leads to products having enhanced mechanical perf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2015-09-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2187076415000652 |
| _version_ | 1818730607575826432 |
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| author | C.J. Ngally Sabouang J.A. Mbey F. Hatert D. Njopwouo |
| author_facet | C.J. Ngally Sabouang J.A. Mbey F. Hatert D. Njopwouo |
| author_sort | C.J. Ngally Sabouang |
| collection | DOAJ |
| description | This study reports the use of calcined talc for cementitious products making. The calcination is used to enhance the availability of magnesium from talc to react with phosphate for cement phase formation. It is shown that previous calcination of talc leads to products having enhanced mechanical performance due to the formation of more cement phase than in products based on raw talc. Talc fired at 900 °C was found to be the one in which magnesium release was maximal. Firing at temperature higher than 900 °C leads to the stabilization of enstatite, which decreased the magnesium availability. The cement phase is struvite, which was better detected on the X-ray patterns of the products involving fired talc. All the products have very rapid setting time and low shrinkage. |
| first_indexed | 2024-12-17T23:04:28Z |
| format | Article |
| id | doaj.art-7793e90ed6e34b0fb2c2d8176cd1ab38 |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-17T23:04:28Z |
| publishDate | 2015-09-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-7793e90ed6e34b0fb2c2d8176cd1ab382022-12-21T21:29:19ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642015-09-013336036710.1016/j.jascer.2015.07.003Talc-based cementitious products: Effect of talc calcinationC.J. Ngally Sabouang0J.A. Mbey1F. Hatert2D. Njopwouo3University of Yaoundé I, Department of Inorganic Chemistry, Laboratory of Applied Inorganic Chemistry, PO Box 812, Yaoundé, CameroonUniversity of Yaoundé I, Department of Inorganic Chemistry, Laboratory of Applied Inorganic Chemistry, PO Box 812, Yaoundé, CameroonUniversité de Liège, Département de géologie, Laboratoire de Minéralogie et de cristallochimie, B18, Allée du 6 Août, B-4000 Liège, BelgiumUniversity of Yaoundé I, Department of Inorganic Chemistry, Laboratory of Applied Inorganic Chemistry, PO Box 812, Yaoundé, CameroonThis study reports the use of calcined talc for cementitious products making. The calcination is used to enhance the availability of magnesium from talc to react with phosphate for cement phase formation. It is shown that previous calcination of talc leads to products having enhanced mechanical performance due to the formation of more cement phase than in products based on raw talc. Talc fired at 900 °C was found to be the one in which magnesium release was maximal. Firing at temperature higher than 900 °C leads to the stabilization of enstatite, which decreased the magnesium availability. The cement phase is struvite, which was better detected on the X-ray patterns of the products involving fired talc. All the products have very rapid setting time and low shrinkage.http://www.sciencedirect.com/science/article/pii/S2187076415000652TalcCalcinationEnstatiteStruviteCementCompressive strength |
| spellingShingle | C.J. Ngally Sabouang J.A. Mbey F. Hatert D. Njopwouo Talc-based cementitious products: Effect of talc calcination Journal of Asian Ceramic Societies Talc Calcination Enstatite Struvite Cement Compressive strength |
| title | Talc-based cementitious products: Effect of talc calcination |
| title_full | Talc-based cementitious products: Effect of talc calcination |
| title_fullStr | Talc-based cementitious products: Effect of talc calcination |
| title_full_unstemmed | Talc-based cementitious products: Effect of talc calcination |
| title_short | Talc-based cementitious products: Effect of talc calcination |
| title_sort | talc based cementitious products effect of talc calcination |
| topic | Talc Calcination Enstatite Struvite Cement Compressive strength |
| url | http://www.sciencedirect.com/science/article/pii/S2187076415000652 |
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