Enhanced Corrosion Resistance of Reinforced Concrete Using Inhibitor-Based Admixtures: An Experimental Study

Abstract

Corrosion of embedded steel can have serious impacts on the durability of reinforced concrete structures, particularly when they are in harsh environments, such as marine and industrial environments. Mitigating this degradation is critical to long-lasting structural behavior. The concrete samples were chemically prepared by adding a variety of corrosion-inhibiting admixtures in different proportions and compared with normal concrete. Compressive strength testing, accelerated corrosion exposure, half-cell potential, and chloride penetration were performed to quantify the strength and corrosion resistance. Results revealed that the inclusion of the corrosion inhibitors effectively retarded the corrosion in steel reinforcement. The reinforced concrete, as well, proved to possess lower chloride penetration, and with satisfactory strength properties. Compared with the traditional mixes, these specimens had better resistance. Results clearly provide for the need for corrosion-reducing admixtures which serve as a useful and efficient medium to prolong the useful life of reinforced concrete. Such applications can safeguard buildings in hostile conditions and minimize over time maintenance requirements.