The popularity of self-compacting concrete (SCC) has skyrocketed in recent years, and a lot of work has gone into perfecting the formula so that it has the necessary properties. The incorrect disposal of waste foundry sand produced by metal casting businesses is a major source of environmental damage. The use of foundry sand in self-compacting concrete is a hot topic in the field right now. This experiment showcases the feasibility of partially substituting waste foundry sand for fine aggregate in self-compacting concrete. Experiments are conducted on M35 grade self-compacting concrete containing varying percentages of waste foundry sand (0%, 10%, 20%, 30%, 40% by weight). Produced material was evaluated for strength and compared to standard self-compacting concrete. In order to ascertain the mechanical characteristics of self-compacting concrete, standard cube, cylinder, and beam tests are conducted for 7 and 28 days. The purpose of this study is to determine the effect that varying percentages of industrial waste have on the behavior and mechanical characteristics of selfcompacting concrete via the use of tests such as compressive strength, split tensile strength, and flexural strength. The study may be used as a reference for looking at foundry sand as a possible replacement for natural resources