I am doing research related to corrosion. I need to get the results of corrosion using half-cell potential and concrete resistivity measurements when the reinforcement mass loss around 5-10%.
You may use Faraday's law to approximately find the mass loss caused by induced corrosion. in your case you may find the time needed to cause the mass loss of say 10% knowing the electric current used in the accelerated corrosion.
m=(axtxI)/(nxF) .... Faraday's
where m = mass loss (g); I = corrosion current (Amp); t = time of the corrosion process (hr); a = atomic mass of iron (55.85 g); n = valence of the reacting electrode for the material (nsteel = 2); F = Faraday’s constant (96500 C/mol).