Volume 2 - Issue 2, March - April 2026

Given the quick pace of urbanization today, the construction industry relies heavily on natural resources and is a significant source of carbon dioxide emissions and pollution. This study looks at employing industrial and agricultural by-products as ecologically friendly replacements in concrete manufacture to help alleviate the two concerns of pollution from cement-related waste and limited resources. This study indicates that Corn Cob Ash, when effectively combined with GGBS, acts as an effective, ecologically friendly, and cost-efficient supplementary cementitious ingredient that helps to minimize cement consumption, repurpose garbage, and generate high-robustness sustainable concrete. The combination of GGBS and CCA's pozzolanic activity led in a thicker microstructure and a stronger long-term strength. Partial substitution of ordinary Portland cement with Ground Granulated Blast-Furnace Slag (GGBS) and Corn Cob Ash (CCA) is the subject of this study, which tries to increase the robustness (mechanical and durability properties) of M40-grade concrete. Prepared by controlled burning of cleansed Corn Cob at 600 °C followed by considerable crushing, CORN COB ASH (CCA) is another agro-waste resource that may be utilized as a supplemental cementitious ingredient. It helps lessen the environmental effect of concrete manufacturing and may be partly replaced for cement. In the experimental setting, Corn Cob Ash was added in increasing quantities of 0%, 3%, 6%, 9%, 12%, and 15%, while GGBS was held constant at 15% by weight of cement. Six different concrete mixes were prepared and then compared: a control mix with 0% CCA + 0% GGBS and five modified mixes with 3% CCA + 15% GGBS, 6% CCA + 15% GGBS, 9% CCA + 15% GGBS, 12% CCA + 15% GGBS, and 15% CCA + 15% GGBS. The studies reveal that at 7,14 and 28days, compressive, split tensile, and flexural strength all rise.

Syed Ali Abbas, Nayak Kumar, "Improvement in Robustness of M40 Grade Concrete through Partial Replacement of Cement with GGBS and Corn Cob Ash (CCA)" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(2): Page(304-308) Mar-Apr 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.