International Journal of Science, Engineering and TechnologyAuthors: G.poojitha, A.Ram kumar
Abstract: Industrial ceramic tile waste represents a persistent construction-related solid waste stream with potential for use as aggregate in concrete. This study evaluates crushed ceramic tile waste as partial replacement of natural fine aggregate and combined fine/coarse aggregates in standard-grade M40 and high-strength M70 concretes. Concrete mixtures were proportioned using the ACI method and evaluated through workability, density, compressive strength, split tensile strength, flexural strength, stress-strain response, modulus of elasticity, rebound hammer, ultrasonic pulse velocity (UPV), sorptivity, and chemical durability. Replacement trials covered 0-100% ceramic waste; selected mixtures were subsequently examined in detail. For M40 concrete, the 50% fine-aggregate replacement mixture achieved a 28-day compressive strength of 55.36 MPa, while the selected combined-replacement mixture achieved 52.10 MPa. For M70 concrete, the control, 50% fine-aggregate replacement, and combined-replacement mixtures recorded 28-day compressive strengths of 71.03, 67.36, and 63.12 MPa, respectively. UPV values for the investigated mixes were generally above 4.2 km/s, indicating good concrete quality. Sorptivity decreased with time, whereas exposure to 5% H2SO4 and 5% HCl produced pronounced mass and compressive-strength losses. The results demonstrate that ceramic tile waste can be incorporated as aggregate while maintaining useful mechanical performance at selected replacement levels, although higher replacement levels and aggressive acidic environments adversely affect performance.
DOI: http://doi.org/10.5281/zenodo.23206314
