Session: Corrosion of Reinforced Concrete Structures: Coatings and Concrete
Durability and Corrosion of Reinforced Concrete due to Sulfates (C2026-00185)
Thursday, March 19, 2026
10:00 AM - 10:30 AM Central
Location: 371 DE
Earn .5 PDH
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Previous research for grout materials indicated that sulfates in certain conditions can promote corrosion activation of steel. There remain inconsistent findings in the literature relating to the effects of sulfates due the complicated influences relating to the material and exposure conditions; however, there is evidence of the detrimental effects of sulfates to hinder the passive film with early exposure. The effect of sulfates on concrete durability and corrosion development was assessed. Concrete prisms, cast with embedded steel rebar, were subjected to cyclic sodium sulfate solution ponding immediately after demolding or after 28 day curing. Open circuit potential, polarization resistance, EIS, and electrochemical noise measurements were made to assess the effects of the sulfates.
