The growing steel demand has resulted in a significant increase in electric arc furnace (EAF) slag production. However, slag disposal has become more complex due to stringent environmental regulations. Previous research has successfully incorporated EAF slag in hot-mix asphalt, preventive maintenance, and Portland cement concrete, resulting in high wear and polishing resistance mixtures. This study aims to investigate the optimum EAFS replacement percentage in slurry surfacing (SS) to strike the best balance between short-term and long-term performance, cost, and carbon footprint reduction. Performance tests following ISSA A143, tiered hybrid life cycle, and cost analysis were done. Ultimately, AHP analysis is conducted to determine the optimum EAFS percentage replacement. The AHP analysis shows that 20% aggregate replacement was the optimum condition to fulfill the long-term performance requirement that satisfies the abrasion and rutting resistance, carbon emission, and cost requirements.