Rehabilitation and Maintenance of Rusted Reinforcement Bar in RCC Beam

Corrosion of the reinforcing steel in concrete is a worldwide problem that causes a range of economic, aesthetic and utilization issues. However with the passage of time, the structure starts getting older and starts showing some signs like cracking, splitting, delaminating and corrosion of steel etc .Corrosion of steel bars embedded in reinforced concrete (RC) structures reduces the service life and results in appearance of cracks in member thatby causes prior failure of structure, which costs the repair and maintenance of the RCC structure. Attention should be directed at corrosion reduction practices at the design and planning stages . Deterioration of rusted rebar can be overcomed by adopting a patch repair technique, which restores the undamaged state and it is shown clearly by adopting a patch repair technique with replacing rusted steel rebar . This research work aims to lighten the importance of monitoring corrosion in reinforcement and proposes the various methods for observing and evaluating the corrosion state of reinforced concrete structures, especially by using hal-cell potential method. This research work also presents techniques of protecting rcc structure from corrosion.