Review on the effects of Corrosion on Reinforced Concrete Beams: Structural Performance, Durability, and Failure Mechanisms

Mankare, Ulka Shesharao; T S, Viswanathan

doi:10.22059/ceij.2026.394922.2309

Review on the effects of Corrosion on Reinforced Concrete Beams: Structural Performance, Durability, and Failure Mechanisms

Articles in Press

Document Type : Review Paper

Authors

Ulka Shesharao Mankare ¹

Viswanathan T S ²

¹ Vellore Institute of Technology University, Katpadi, Vellore

² Vellore Institute of Technology University Katpadi, Vellore

10.22059/ceij.2026.394922.2309

Abstract

Reinforcement corrosion in reinforced concrete (RC) beams is of significant concern with regard to structural performance, durability, and failure modes. In this review, the impact of corrosion on RC beams is investigated, with focus on pitting corrosion as the most harmful type because of its localized character that causes extensive cross-sectional loss and bond degradation. Corrosion-driven degradation diminishes flexural and shear strength, changes failure mechanisms from ductile to brittle, and promotes concrete cracking and spalling. Environmental conditions, especially chloride exposure in marine and industrial environments, significantly enhance corrosion rates, causing early structural failures. The research also investigates the impact of durability-enhancing techniques like corrosion-resistant reinforcement, protective coatings, supplementary cementitious materials, and electrochemical monitoring systems. In spite of the progress in corrosion mitigation, more research is required to create better predictive models and sustainable protection strategies. This review emphasizes the importance of proactive corrosion management to prolong the service life and structural integrity of RC beams in aggressive environments.

Keywords

Reinforced Concrete

Corrosion Mechanism

Pitting Corrosion

Durability

Corrosion mitigation

Subjects