This chapter investigates the bond behavior between recycled aggregate concrete (RAC) and steel rebars. The research addresses the effects of varying RAC replacement percentages and rebar types (plain vs. deformed) on the bond strength. It provides a detailed analysis of bond stress versus slip relationships through pullout tests. The results show how the bond strength decreases with increased RAC content but also reveal that deformed rebars exhibit superior bond strength compared to plain ones. The chapter concludes with a proposed model for simulating bond behavior and recommendations for improving RAC’s structural performance.