Reinforced concrete corrosion; Mechanism, challenges, prospective, and future roadmap

One of the significant durability challenges is the corrosion of reinforced concrete, which significantly reduces its service life. Due to the ever-growing requirement for extended service periods of infrastructure, its cost-intensive maintenance procedures, substantial economic losses, and adverse environmental effects, developing state-of-the-art methods for repairing corrosion failures in concrete structures is essential. In general, traditional and electrochemical methods are two broad categories for fixing corrosion-induced damages in concrete structures. Nonetheless, because each of these solutions has its own restrictions along with its benefits, an integration of these mitigation strategies is suggested to reach the maximum threshold in preventing corrosion damage. In this critical review paper, the mechanism and mitigation strategies of corrosion in reinforced concrete are thoroughly discussed. Moreover, special emphasis was given to the challenges and future trends in reinforced concrete corrosion. The results of this paper demonstrate that further research is needed to develop solutions that can prevent the negative effects of reinforced concrete corrosion in a manner that is maximally sustainable, durable, environmentally benign, and economically feasible.