The rapid growth of industrialization has led to the generation of substantial quantities of industrial waste, posing significant environmental challenges. This study investigates the potential of using industrial waste materials—specifically fly ash, ground granulated blast furnace slag (GGBS), and marble dust—as partial replacements for cement in concrete. A series of concrete mixes were prepared with varying proportions of these materials and evaluated for mechanical properties, workability, and durability. Experimental results indicate that replacing up to 35% of cement with GGBS and fly ash enhances compressive and flexural strength, while also improving resistance to water permeability and sulfate attack. The use of marble dust contributed positively as a filler, improving matrix density at optimal levels. Microstructural analysis confirmed the formation of additional C-S-H phases and a refined pore structure. Economically, the incorporation of waste materials reduced production costs, and environmentally, it contributed to sustainable construction by minimizing resource depletion and carbon emissions. The findings support the feasibility of incorporating industrial by-products in concrete for durable, cost-effective, and eco-friendly construction.

Industrial Waste , Fly Ash , GGBS (Ground Granulated Blast Furnace Slag) , Marble Dust, Sustainable Construction , Compressive Strength