Enhancing Concrete Sustainability: A Comprehensive Review of Foundry Sand as a Fine Aggregate Replacement

Abstract

The literature review explores the potential of using foundry sand as a partial replacement for fine aggregate in concrete production. Various studies have investigated the effects of incorporating foundry sand on concrete properties, such as compressive and tensile strength, modulus of elasticity, and workability. Findings suggest that foundry sand can effectively enhance concrete strength by up to 20%, while maintaining stability in modulus of elasticity. However, its fine particle composition tends to decrease concrete workability. Researchers concur that foundry sand shows promise as a substitute for river sand in concrete mixes, with replacement levels reaching 30-40%. Nevertheless, further research is needed to fully understand the impact of foundry sand on concrete's long-term durability and performance, particularly in different casting processes and industry sectors. Overall, this literature review highlights the importance of considering foundry sand as a sustainable alternative in concrete production, albeit with careful attention to its source, casting process, and binder systems used.