Evaluating The Compressive Strength Of Green Concrete Containing Calcium Carbide Residue And Rice Husk Ash As Fully Cement Replacement

The compressive strength of green concrete (GC), which is made using rice husk ash (RHA) and calcium carbide residue (CCR) instead of conventional cement, is investigated in this work. According to IS 456:2000, the control mix's objective compressive strength was 26 MPa. Five mixes with varying percentages of CCR and RHA were activated using a 1 molar of sodium hydroxide solution and sodium silicate at Na₂SiO₃/NaOH ratios of 2. According to IS 516:2021's compressive strength tests performed on days 7, 28, and 90, Mix 5 (45% CCR, 45% RHA, and 10% cement) demonstrated the best overall performance, with high compressive strengths when compared to standard concrete. According to this study, Green Concrete is a sustainable and feasible substitute for traditional Portland cement concrete [2][4].