“EXPERIMENTAL INVESTIGATION ON CORROSION IDENTIFYING AND ENHANCEMENT OF EXISTING CONCRETE STRUCTURES”

Corrosion on structure is one of the biggest challenges faced by the civil engineers. Since repairing at rehabilitation requires costly treatments without considering corrosion damages on the structures. Identifying the corrosion on the concrete structure requires more research to solve effectively. A majority of concrete structure is shows signs of degradation due to the corrosion of the reinforcement in the presence of chlorides. In some cases, the degradation is visible with in few years of construction completion. Despite the fact that the concrete structure is particularly suffer premature degradation due to corrosion, due to poor construction quality as a result of poor workmanship. Inadequate standards based on prescriptive measures and poor design as a result of insufficient information with regards the parameters that influence the degradation process. While standards are gradually improving, with the tendency to become performance based in future, much information is needed to assist the designer in the decision making process. A durability model for the reinforced corrosion, based on the Half-Cell Potential Meter Apparatus with different environment. A model is prepared and then the model in tested by immersing in tap water with three known PH value (PH 7.5, PH 9, PH 13 ,) The corrosive effects of tap water, after a certain period of time is calculated by the model is taken out and the by measuring corrosive factors, then these factors are Compared with the actual structures. After this comparison to enhance the life time of structures, chemical coating is applied to concrete models and the effects are studied. After such studies the most successful chemical coating can be applied to the concrete models, which in turn increases the life time of buildings. This project would propose the effective and cost saving chemical coating.