Published Paper Details:

Experimental Investigation on Behaviour of Self-Compacting Concrete Made with Agricultural Wastes as a Partial Replacement of Cement with Corncob Ash explores the use of Corn Cob Ash (CCA) as a sustainable alternative to partial cement replacement in Self-Compacting Concrete (SCC). SCC, known for its high workability without the need for mechanical compaction, can benefit from incorporating agricultural waste like CCA, which possesses pozzolanic properties. The study investigates the behaviour of SCC made with agricultural wastes as a partial replacemet of cement with varying proportions of CCA (0%, 3%, 5%, 10%, and 15%) with a w/c ratio of 0.43 on the workability, compressive strength of M30 grade SCC. The findings reveal that replacing up to 10% of cement with CCA is the optimal percentage replacement. workability of SCC was observed to decrease as the CCA content increased. This suggests the need for additional water or admixtures to maintain fluidity at higher CCA levels, Compressive strength tests show that SCC mixes with up to 10% CCA maintain adequate strength. At 28 days, the strength decreases from 42.45 MPa at 0% to 35.9 MPa at 15% replacement. Furthermore, this approach reduces the environmental impact of concrete production by lowering cement usage and repurposing agricultural waste. The optimal mix is found up to10% CCA replacement, balancing performance and sustainability.