• Swetalana Baban Mane
• Prof. G. N. Kanade
• Prof. P. B. kolekar

The growing demand for sustainable construction materials has encouraged the utilization of agricultural and food industry wastes in cement-based composites. Eggshell waste, primarily composed of calcium carbonate, is generated in large quantities and poses significant disposal challenges. This study investigates the feasibility of using eggshell powder (ESP) as a partial replacement of ordinary Portland cement to enhance the flexural strength of concrete. Concrete mixes were prepared with ESP replacement levels of 0%, 5%, 10%, and 15% by weight of cement. Flexural strength tests were conducted on beam specimens after 28 days of curing in accordance with IS 516:1959. The results revealed that the incorporation of ESP up to 10% improved the flexural strength compared to the control mix, with maximum performance observed at 10% replacement. However, a decline in flexural strength was recorded at 15% ESP due to the dilution of cementitious constituents. The findings indicate that eggshell powder can be effectively utilized as a sustainable cement replacement material at optimum replacement levels, contributing to waste valorisation and reduced environmental impact.

Eggshell powder, flexural strength, sustainable concrete, cement replacement, waste utilization.

"Experimental Investigation on Flexural Strength of Concrete Containing Eggshell Powder", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 1, page no.f78-f81, January-2026, Available :http://www.jetir.org/papers/JETIR2601510.pdf

"Experimental Investigation on Flexural Strength of Concrete Containing Eggshell Powder", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 1, page no. ppf78-f81, January-2026, Available at : http://www.jetir.org/papers/JETIR2601510.pdf