Evaluating the feasibility of using iron powder as a partial replacement for fine aggregates in concrete: An AI-based modeling approach

Abstract

The construction industry faces sustainability challenges from urbanization and the depletion of non-renewable resources for conventional fine aggregates. Recycling waste materials as alternative aggregates can reduce environmental impacts. This study explores using iron powder as a partial replacement for fine aggregates in concrete to repurpose waste and reduce disposal costs. While past research has focused on pavements, this study examines iron powder's impact on concrete properties. Concrete mixes were prepared according to BIS guidelines, containing 350 kg/m³, comprising of 250 kg/m³ of cement and 100 kg/m³ of bottom flyash. The study explores using iron powder as a partial replacement for fine aggregates in concrete, aiming to promote sustainability and waste reduction. Concrete mixes were tested with varying levels of iron powder replacement (5 %, 10 %, 15 %). The results indicate that iron powder can enhance the mechanical properties of concrete, with promising potential for replacing conventional fine aggregates. A Random Forest model was developed to predict these properties, aiding in sustainable construction practices by offering a viable approach for recycling industrial waste in concrete production.