Self-glazed ceramic tiles using soda-lime-silica glass instead of Na-feldspar

Abstract

This study involves preparation of self-glazed ceramic tiles by utilizing soda-lime-silica waste glass (SLS). To investigate the effect of addition of SLS with the partial substitution of clay material, three batch compositions were prepared and subjected to seven different temperatures (1050 °C, 1075 °C, 1100 °C, 1125 °C, 1150 °C, 1175 °C, 1200 °C, 1225 °C). Linear shrinkage, glossiness, modulus of rupture, and water absorption of prepared samples showed different behavior at different temperatures. XRD, UTM, and SEM instruments were employed to characterize the developed sample as well as to determine the optimum conditions for the process. For batch 2, best results were observed with value of modulus of rupture 73.35 MPa at low sintering temperature (1100 °C). The obtained result clearly exhibited the efficacy of developed self-glazed ceramic tiles as a cost-effective product and solution to waste glass management.