Research Article

Efficiency of Different Electrolytes on Electrochemical Chloride Extraction to Recover Concrete Structures under Chloride-Induced Corrosion

Figure 4

Chloride profiles before and after treatment using water as electrolyte for at 2 A/m2 constantly for 4 weeks, in terms of (a) total, (b) free, and (c) bound chlorides. (a) Total: acid soluble titration against silver nitrate at the ambient temperature. (b) Free: water soluble chlorides dissolved in 50°C distilled water. (c) Bound: values obtained by subtracting the free chloride concentration from the total at each depth.
(a)
(b)
(c)