To Study the Effect on Mechanical Properties of Concrete by Partially Replacement of OPC with Fly Ash and GGBS

This study investigates the mechanical properties of concrete with partial replacement of ordinary Portland cement (OPC) by fly ash and ground granulated blast furnace slag (GGBS). Various mix proportions were tested to evaluate compressive, tensile, and flexural strength over different curing periods. Results show a reduction in early-age strength due to slower hydration but improved long-term strength, and workability. The use of fly ash and GGBS also reduces the environmental impact, highlighting their potential as sustainable alternatives in concrete production.