EFFECT OF SULFATE CONCENTRATION AND ASSOCIATED CATION TYPE ON CHLORIDE-INDUCED REINFORCEMENT CORROSION

This investigation was conducted to evaluate the effect of sulfate concentration and associated cation type on chloride-induced reinforcement corrosion. Reinforced concrete specimens were exposed to chloride-sulfate environments for a period of 600 days and reinforcement corrosion was evaluated by measuring corrosion potentials and corrosion current density. The corrosion current density increased with increasing sulfate concentration and the cation type associated with the sulfate ions significantly influenced chloride-induced reinforcement corrosion. Reinforcement corrosion in the concrete specimens exposed to sodium chloride plus magnesium sulfate solution was more than that in the concrete specimens exposed to sodium chloride plus sodium sulfate solution.

• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Dehwah, HAF
  • Maslehuddin, M
  • Austin, S A
• Conference:
  • Fifth CANMET/ACI International Conference on Durability of Concrete
  • Location: Barcelona, Spain
  • Date: 2000-6-4 to 2000-6-9
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 369-384

Subject/Index Terms

• TRT Terms: Cations; Chlorides; Concentration (Chemistry); Corrosion; Magnesium compounds; Reinforced concrete; Reinforcement (Engineering); Sodium chloride; Sulfates
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00795451
• Record Type: Publication
• Report/Paper Numbers: SP 192-23
• Files: TRIS
• Created Date: Jul 5 2000 12:00AM