Improving the Properties of Indigenous Wall Tiles using Recycled Waste Glass Bottles as Reinforcement/Glaze Material
Authors: Edeh JC, Ibeh MI, Oduma O, Eji CO
This research was conducted to improve the properties of indigenous wall tiles. Results obtained revealed that at 800 oC, the reinforced sample showed average linear shrinkage of 11%, increasing with cullet content (%) but showing reducing effect at elevated temperature of 1075 oC. Beyond 1075 oC, the samples with higher composition of cullet were found to have melted and fused together with high vitrification except sample of 50% of clay with 10% of glass surviving. Results further revealed that the flexural strength of the tiles produced increased with the increase in glass reinforcement up to 20% composition beyond which deterioration resulted owing to loss of surface water and dehydroxylation of clay causing break in homogenous interaction and propagation of cracks. It recorded its highest flexural strength of 47.01 kgF/cm2 at reinforcement (glass bottle powder composition) of 20 % and least at 10 % composition where it had flexural strength of 37.4701 kgF/cm2. The porosity and water absorption of the tiles decreased with the increase in the reinforcement (waste glass bottle powder composition). The porosity reduced from 16 to 6% at waste bottle composition between 10 to 25%, respectively: while the water absorption characteristics showing similar trend decreased from 8.2% to 2.0% at waste bottle composition between 10 to 25%, respectively. Glaze composition of 70% glass and 30 % clay depicted good and desirable glossy effect.
Affiliations: Department of Mechanical Engineering, College of Engineering and Engineering Technology, Michael Okpara University of Agriculture, Umudike, Abia State Nigeria
Keywords: Clay, Waste Glass Bottles, Cullet, Wall Tiles, Glaze
Published date: 2020/06/30