The improvement of the passive film by the treatment of chloride ions cooperated with Zwitterions and phosphate group in simulated concrete pore solution

Abstract

This work addresses the expectation of discovering a corrosion inhibitor including following criteria i.e. eco-friendly environment, casily appicable approach, highly corrosive resistance, and stability in high chloride concentration in alkaline environment. The noble properties of hybrid inhibitor are investigated by electrochemical studies and morphological, which is observed in steel rebar treatment for 240 h. Chloride ions are able to constitute the passive film along with L-Arginine (LA) and phosphate group. The optimum amount of chloride concentration goes to 5 wt.% NaC1 addition due to its highest corrosive resistivity.