Initiation of localized steel corrosion in alkaline sulfate solution

The role of sulfate ions on corrosion of steel in alkaline solutions (including cementitious materials) has been contested in the literature due to the effects of the many exposures, material and test conditions. Recent observations of steel corrosion in cementitious grouts in post-tensioned bridges coinciding with elevated sulfate-ion concentrations have prompted the development of material specifications concerning segregated grout....