Examining foundry sand's potential as a partial substitute for m-sand through experimental and numerical research

ABSTRACT

This study explores the potential of using foundry sand (FS) as a partial replacement for manufactured sand (M Sand) in conventional concrete, aiming to enhance sustainability in construction practices. The experimental program involved creating concrete mixes using ordinary Portland cement (OPC), coarse aggregate (CA), M Sand, and a constant 1% superplasticizer (SP). The control mix consisted of OPC, CA, M Sand, and 1% SP. Subsequent mixes incorporated FS at replacement levels of 5%, 10%, 15%, 20%, 25%, and 30% of the M Sand by weight. The study assessed the workability, compressive strength, and durability of the concrete mixes. Results showed that FS inclusion up to 25% significantly improved the concrete’s properties, including enhanced compressive strength and durability, suggesting FS as a viable alternative to M Sand. This research not only promotes the use of industrial byproducts but also addresses environmental concerns related to foundry waste management, contributing to the development of eco-friendly construction materials. By utilizing foundry sand, the construction industry can reduce its reliance on natural sand resources, promoting sustainable practices and reducing the environmental footprint.

Keywords:
Foundry sand; Workability; Mechanical property; Durability property; Micro analysis