UTILIZATION OF SURFACE TREATED INDUCTION FURNACE SLAG (IFS) AS REPLACEMENT OF COARSE AGGREGATE IN CONCRETE

Abstract

This study aims to mitigate the environmental and economic impacts of steel and concrete production by exploring the utilization of Induction Furnace Slag (IFS) Aggregates in Concrete. The potential benefits include reduced reliance on natural aggregates and mitigation of steel slag dumping, alongside cost reductions in the construction sector. Literature review highlighted the heterogeneous properties of IFS, necessitating innovative mechanical and chemical treatments to enhance its bonding with cement matrix. Mechanical abrasion, particularly with a 10-minute treatment, demonstrated a significant improvement in compressive, split tensile, and flexural strengths compared to natural aggregate. Chemical treatments, notably 4M NaOH solution, also exhibited notable enhancements in strength parameters. Moreover, IFS showed comparable water absorption and soundness test results to natural aggregate, affirming its suitability as a replacement. These findings suggest the viability of IFS in concrete applications, with potential extensions to rigid pavements due to its robust mechanical properties. In conclusion, the study underscores the significance of treatment methods in optimizing IFS performance and highlights its potential as a sustainable alternative in concrete production