Effect of Warionia saharae extract on the behavior of reinforcement steel in simulated carbonated concrete pore solution

The effect of the warionia saharae extract on the behavior of reinforcement steel in simulated carbonated concrete pore solution in presence of different concentrations of chloride ions was studied using electrochemical measurements. the surface morphology of the electrode was observed by both optical and scanning electron microscopies. results showed that the extract plant enhanced the protection of reinforcement steel in simulated carbonated concrete pore solution (ccps). the evolution of the electrochemical parameters and inhibition efficiency depend on the chloride ions concentration. the optimal efficiency (≈ 53%) was obtained at 1g/l of the extract plant. adsorption of the extract plant molecules corresponds to langmuir adsorption isotherm in (ccps). © 2017,university of mohammed premier oujda morocco.