Effect Of Corrosion Inhibitors On Reinforced Concrete Properties—A Review

Over recent decades, considerable effort has been made to discover new and efficient corrosion inhibitors for reinforced concrete in corrosive media. Organic, inorganic, and green corrosion inhibitors have been used to inhibit the corrosion of reinforcing bars in contaminated concrete structures. Despite the efficacy of corrosion inhibitors, an evaluation of the effect of inhibitors on other concrete properties plays a prominent role in assessing the industrial use of these effective materials. A comprehensive study of improvements in concrete properties such as workability, setting time, air content, fresh density, compressive strength, tensile strength, flexural strength, consistency, elasticity, water absorption, and water permeability after the addition of a corrosion inhibitor allows for effective reduction of reinforcement steel corrosion. Hence, this study summarizes all corrosion inhibitors used for concrete reinforcement during the last decade (2010–2020), as well as their effects on the properties of contaminated concrete.