Effect of Fly Ash on the Electrochemical Performance of 316L Stainless Steel Concrete Reinforcement in Saline Environments Attacked by Acid Rain

The present study investigates the effect of fly ash (FA) as a corrosion inhibitor on electrochemical performance 316L stainless steel concrete reinforcement in simulating pore solution exposed to coastal environment that is severely polluted by acid rain (AR). behavior examined means cyclic (reverse) polarization order evaluate susceptibility rebars localized corrosion. A slightly alkaline corroded has directly attack (pH ≈ 8) was chosen electrolyte. contained Ca(OH) 2 partially replaced FA (0 wt.% - 25 wt.%), an and 3.5 wt% NaCl. beneficial replacing (up 20 FA) resistance manifested slower kinetics, nobler potentials less localised However, these trends were reversed at FA. above compared with same electrolyte but without addition