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

The extensive use of cement in concrete production has led to increased consumption of natural resources and significant carbon dioxide emissions. To address environmental concerns and promote sustainable construction practices, the utilization of waste materials as partial replacements for cement has gained attention. Eggshell waste, generated in large quantities from domestic and food-processing industries, is rich in calcium carbonate and exhibits chemical similarity to cementitious materials. This study investigates the effect of waste eggshell powder (ESP) as a partial replacement for Ordinary Portland Cement (OPC) on the compressive strength of concrete. Cement was replaced with eggshell powder at levels of 0%, 5%, 10%, 15%, and 20% by weight. Concrete cube specimens were cast and cured for 7, 14, and 28 days, after which compressive strength tests were conducted. The experimental results were compared with conventional concrete to determine the optimum replacement level. The study demonstrates that controlled incorporation of eggshell powder can enhance compressive strength while contributing to sustainable waste management.

The extensive use of cement in concrete production has led to increased consumption of natural resources and significant carbon dioxide emissions. To address environmental concerns and promote sustainable construction practices, the utilization of waste materials as partial replacements for cement has gained attention. Eggshell waste, generated in large quantities from domestic and food-processing industries, is rich in calcium carbonate and exhibits chemical similarity to cementitious materials. This study investigates the effect of waste eggshell powder (ESP) as a partial replacement for Ordinary Portland Cement (OPC) on the compressive strength of concrete. Cement was replaced with eggshell powder at levels of 0%, 5%, 10%, 15%, and 20% by weight. Concrete cube specimens were cast and cured for 7, 14, and 28 days, after which compressive strength tests were conducted. The experimental results were compared with conventional concrete to determine the optimum replacement level. The study demonstrates that controlled incorporation of eggshell powder can enhance compressive strength while contributing to sustainable waste management.

"Compressive Strength Evaluation of Concrete with Eggshell Powder as Cement Substitute", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 1, page no.e602-e609, January-2026, Available :http://www.jetir.org/papers/JETIR2601485.pdf

"Compressive Strength Evaluation of Concrete with Eggshell Powder as Cement Substitute", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 1, page no. ppe602-e609, January-2026, Available at : http://www.jetir.org/papers/JETIR2601485.pdf