Electrochemical Behavior and Dependency of Anodic Current Density on Chloride Concentration and Temperature Based on Reverse Corrosion Modeling Approach for Steel Reinforced Concrete

This paper elaborates the electrochemical behavior and dependency of anodic current density on chloride concentration and temperature based on reverse corrosion modeling approach for steel reinforced concrete. This research presents a semi-empirical corrosion modeling approach which obeys the basic mathematical laws and is also verified by the test results involving a wide range of chloride and temperature variations. The numerical modeling task has been incorporated by the use of computer based finite element model as a computational platform on which the coupled temperature-chloride induced corrosion throughout the life of reinforced concrete structures is examined in both space and time domains. This article contains advances in the development and use of computational methods for the solution and simulation of corrosion problems in civil engineering. In this paper a back calculation mathematical model has been developed and its numerical solution along with testing verification is presented. This article makes use of computers and numerical methods to model and solve the temperature induced corrosion problems in concrete structures. The paper provides a unique combination of strong numerical experiments, mathematical analysis, and comparisons with the test data. In this paper an automatic solution of mathematical models has been developed for corroding structures presenting algorithms for optimization and simulation which will help in profound understanding of temperature controlled corrosion reactions in reinforced concrete structures based on primary scientific laws and principles for complete life cycles. Investigations revealed that in fact anodic current also varies as a function of chloride concentration and temperature. This relation has been successfully extracted in this paper from the past research. It was interesting to observe the similarity present in the profiles of anodic current at different temperature conditions of 20°C, 40°C and 60°C.