INVESTIGATION AND REPAIR OF REINFORCEMENT CORROSION IN A BRIDGE DECK

Since the mid 1960's large amounts of de-icing salts have been used in winter to prevent the formation of ice on main roads. Many bridges built prior to that time have no adequate protection against the harmful effects of these chloride salts on their reinforced concrete deck slabs. The paper describes the damage to the deck of a 13 span viaduct in Norfolk by road salts, the testing of the concrete to establish areas needing repair, and the remedial works carried out. The use of a half cell potential test to detect possible corrosion of the reinforcement is reported and the factors influencing the susceptibility of bridge decks to attack by chloride salts are discussed. (Author/TRRL)

• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Cavalier, P G
  • VASSIE, P R
• Conference:
  • Institution of Civil Engineers, Proceedings, Pt 1
• Publication Date: 1981-8

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 461-480
• Serial:
  • Volume: 70
  • Issue Number: PT1

Subject/Index Terms

• TRT Terms: Bridge decks; Chlorides; Concentration (Chemistry); Corrosion; Crash investigation; Deicing chemicals; Halides; Loss and damage; Material reinforcement; Measurement; Reinforced concrete; Reinforcing materials; Repairing; Resistance (Electricity); Slabs; Studies; Tests; Viaducts
• Uncontrolled Terms: Causes; Repairs
• ITRD Terms: 3482: Bridge deck; 9003: Cause; 7132: Concentration (chem); 5252: Corrosion; 1614: Damage; 2598: Deicing; 7314: Halide; 6136: Measurement; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 3635: Repair; 6916: Resistance (electr); 6255: Test
• Subject Areas: Bridges and other structures; Construction; Highways; Maintenance and Preservation; Safety and Human Factors; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00345685
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Feb 27 1982 12:00AM