MATEC Web of Conferences
Volume 5, 2013REMCES XII – XIIe Rencontre Marocaine sur la Chimie de l'État Solide
|Number of page(s)||4|
|Published online||09 September 2013|
Evaluation methods for ceramic suitability of raw clays
Laboratoire de Physico-chimie des Matériaux et Environnement, Unité Associée au CNRST (URAC 20), Département de Chimie, Faculté des Sciences Semlalia, Université Cadi Ayyad, BP. 2390, Marrakech, Morocco
Ceramic suitability of kaolinitic-illitic and chloritic-illitic raw clays was assessed by methods involving microstructure investigation and ceramic properties measurements, some reported diagrams and response surface methodology (RSM). Results of the former method showed that all clays are suitable for red stoneware tiles. The stoneware manufacturing is facilitated by the marked reduction of porosity due to the flow of melt, mainly originated from the breakdowns of illite. This result was partially supported by the use of a diagram involving the chemical composition of clays as well as by the RSM results. According to the later method, bricks may be manufactured under restricted firing conditions and stoneware tiles could be prepared at temperatures as low as 950°C.
© Owned by the authors, published by EDP Sciences, 2013
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