Bone-china ceramic powder and granite industrial by-product waste in self-compacting concrete: A durability assessment with statistical validation

Abstract

Due to continuous stockpiling of industrial by-products, waste management and disposal has become an underlying problem. Utilization of these industrial wastes as a substitution to concrete components can be a promising solution towards conservation of energy and curtailment of CO2 emission. The present study is an initiative to explore the durability behaviour of self-compacting concrete containing bone-china ceramic powder waste (BCPW) and granite cutting waste (GCW). The aim of this study is to investigate the use of bone-china ceramic powder waste (BCPW) and granite cutting waste (GCW) as substitutes for cement and natural fine aggregates in self-compacting concrete. The replacement ratios of BCPW were taken as 0%, 10%, 20%, and 30% for cement and of GCW were taken as 0%, 20%, 30%, and 40% for NFA to prepare the SCC mixes. The self-compacting concrete mixes were tested for acid attack, sulphate attack, sorptivity, and thermal gravimetric analysis (TGA). Statistical analysis was used to validate the findings. The results show that the use of BCPW and GCW as substitutes in self-compacting concrete improves its durability. The ceramic granite modified concrete shows less weight and compressive strength loss compared to conventional concrete, up to an optimum replacement level. This improvement is attributed to the pozzolanic property of BCPW and the better filling property of GCW. However, adverse impacts were observed beyond this limit. The study provides insight into the potential of using industrial by-products in self-compacting concrete, offering a sustainable solution to waste management, and contributing to the reduction of CO2 emissions. The statistical analysis used to validate the results adds rigor to the study and further supports the findings. The use of bone-china ceramic powder waste and granite cutting waste in self-compacting concrete is a novel approach, which can improve the durability and sustainability of concrete structures.