| Three ceramic tile body compositions have been studied using
indigenously available natural minerals and industrial solid
wastes as raw materials. The physicochemical properties of all
the specimens produced under laboratory conditions were compared.
It has been observed that elimination of crystalline silica,
introduction of alkaline earth oxides in the form of waste materials
and precalcined phases promoted sintering and enhanced
the fired strength considerably. The results of water absorption,
fired shrinkage, coefficient of thermal expansion, hardness,
flexural strength and SEM studies indicate the suitability of such
compositions for wall and floor tile applications. The surface
gain due to lower shrinkage in one of the experimental composition
has been calculated and compared with that of a commercial
composition. |
