Evaluates waste glass as a flux replacement in ceramic tiles, suggesting a sustainable manufacturing route.
Key Points
The research aims to assess the use of soda-lime waste glass as a partial replacement for feldspar flux in ceramic tile production to enhance sustainability.
Evaluated five formulations with 0–20 wt.% waste glass in tile bodies.
Manufactured tiles using wet milling, granulation, pressing, and fast firing in an industrial roller kiln.
Conducted thermal behavior, phase evolution, microstructure, and property assessments using DTA/TG, XRD, and SEM/EDS.
The optimal composition of 15 wt.% waste glass resulted in low water absorption (2.83%) and reduced open porosity (4.97%).
The incorporation of waste glass promoted earlier liquid-phase formation and increased vitrification during fast firing.
The study found high flexural strength (∼61 MPa) and controlled linear shrinkage (7.99%) with the optimal formulation.