Abstract
Currently, the availability of high-quality natural river sand is scarce, requiring transportation over long distances, and its rapid depletion is a significant concern. In this project, the focus lies on assessing the behavior of concrete by partially replacing natural sand with waste foundry sand. The experimental investigation primarily examines the mechanical and durability, split tensile strength, Ultrasonic Pulse Velocity Test, flexural strength, and permeability of concrete. This evaluation involves replacing natural river sand with varying percentages (0%, 10%, 20%, 30%, 40%) of waste foundry sand by weight. Tests are conducted on cubes and beams to analyze the mechanical properties and durability characteristics of concrete with waste foundry sand compared to concrete with natural sand as fine aggregate. The study includes assessments of splitting tensile strength and flexural strength at different ages (7, 28, 56, and 90 days). Results indicate a decrease in workability as the percentage of waste foundry sand in the mix increases.
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