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Waste generated due to various industrial activities are dumped as landfill posing serious environmental complications. Pollution control due to industrial waste has become one of concern across the globe. This study discusses foundry sand and coconut shell, two byproducts of the manufacturing and agriculture sectors. The most efficient use of these components is to include them into the concrete itself, either as a partial substitute for fine aggregate or coarse aggregate, or both. Durability tests were conducted on concrete samples with the replacement percentages determined to be optimal on the basis of mechanical characteristics. According to the findings, foundry sand may be utilised as a fine aggregate replacement in concrete, while coconut shell can be used as a coarse aggregate replacement without impacting its strength or durability.