Characterization of Ferrochrome Slag, Fly Ash with Red soil as an Embankment and Pavement Material

This study explores the partial replacement of red soil with ferrochrome slag (FCS) at varying proportions (0%, 10%, 20%, 30%, and 40%) and the effect of adding 5% fly ash to enhance its properties. Initially, red soil without any FCS replacement or fly ash addition is subjected to laboratory tests to establish baseline characteristics. Laboratory investigations include compaction, Atterberg limits, unconfined compressive strength (UCS), and California Bearing Ratio (CBR). Results indicate that the inclusion of ferrochrome slag significantly improves the soil’s strength and durability, while the addition of fly ash further enhances its stabilization properties. The optimum replacement level is identified based on mechanical performance and economic feasibility. These findings demonstrate the potential of utilizing industrial by-products to improve soil properties for sustainable construction practices.