Rapid urbanization has led to large-scale infrastructure projects across the country, significantly increasing steel consumption. As one of the world’s top steel producers, India generates 2–4 tons of slag per ton of steel, posing a major disposal challenge. This paper explores the potential of steel-making slag as a stabilizing agent for marine clay when combined with conventional binders. The study evaluates the impact of the component elements on unconfined compressive strength (UCS) of the blended mix. It also includes laboratory tests to assess the effect of curing on UCS. Experimental investigation reveals that the UCS of the blended mix increases with slag content up to 30%. Strength of the blended mix increases with cement content, whereas curing increases the UCS.