دانلود رایگان مقاله توسعه الکترود رفرنس حالت جامد برای نظارت خوردگی فولاد در سازه های بتن آرمه

abstract

Corrosion of steel reinforcement concrete structures is monitored through the surface mounting techniques using liquid based reference electrodes. Due to the limited usage of liquid based reference electrodes solid state reference electrode are introduced recently. In the present study, we fabricated and characterized Mn3O4 based pellet electrode for corrosion assessment of steel rebar in high alkaline medium through electrochemical methods and the results are compared with conventional saturated calomel reference electrode (SCE). The results indicate that the fabricated pellet electrode exhibits better characteristics suitable for high alkaline concrete environment and differentiate the passive and active status of steel rebar.

4. Conclusion

In this present study, Mn3O4 based pellet reference electrode was successfully fabricated and characterized in high alkaline solution environment. The electrochemical studies reveal that FPE gives pH dependable potential. Corrosion monitoring studies of steel rebar was conducted through the potentiodynamic polarization and electrochemical impedance method and the results were compared with conventional SCE reference electrode. The resulting data showed the better characteristics of FPE in high alkaline concrete like environment. When it is used in steel rebar corrosion assessment of concrete structures, it can easily differentiate the passive and active state of steel rebar.