Sustainable Concrete Mixes Using Alccofine and Waste Materials

The increasing demand for sustainable construction practices has led to the exploration of alternative materials to reduce the environmental impact of conventional concrete. This study investigates the mechanical performance of concrete mixes incorporating Alccofine and industrial waste materials such as ground granulated blast furnace slag (GGBFS), metakaolin, copper slag, foundry sand, and recycled aggregates. Four mix variants were developed and evaluated against a conventional control mix. Experimental investigations included workability, compressive strength, split tensile strength, flexural strength, and density tests at various curing periods. The results demonstrated that optimized combinations of Alccofine and supplementary waste materials significantly enhanced the mechanical properties and sustainability of the mixes. Among the tested mixtures, the blend containing 15% Alccofine, 10% metakaolin, and 30% GGBFS in the binder, along with 50% copper slag, 30% foundry sand, and 30% recycled coarse aggregate, outperformed others in terms of strength and environmental benefit. The findings validate the feasibility of incorporating such materials in structural concrete for sustainable construction.