CATHODIC PROTECTION OF A REINFORCED CONCRETE BRIDGE SUBSTRUCTURE USING THE DURANODE INTERNAL ANODE SYSTEM

This paper describes the findings of a trial using cathodic protection for arresting ongoing corrosion of reinforcement in chloride contaminated concrete. The substructure of a motorway br was selected as trial area. Three different cathodic protection systems were applied in 1987. These were a conductive polymer cab overlaid with a sprayed concrete including fibre reinforcement, a titanium mesh similarly overlaid with sprayed concrete and the discrete durAnode system. A surface sealing system using a polyurethane coating was also tested. In 1993 a report from the Danish Road Directorate concluded that all three cathodic protect systems had arrested corrosion effectively. The discrete anode sy was found to be the simplest and cheapest to install. The discret anode system has now been running for 10 years without showing an signs of a fall off in effectiveness, increase in circuit resista or any durability problems. For the covering abstract see ITRD E117314.

• Corporate Authors:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Authors:
  • JAKOBSEN, D T
  • STOLTZNER, E
  • Buhr, B
• Conference:
  • PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON CORROSION AND REHABILITATION OF REINFORCED CONCRETE STRUCTURES HELD 7-11 DECEMB 1998, ORLANDO, FLORIDA, USA
• Publication Date: 1999

Language

• English

Media Info

• Features: References;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Bridges; Cathodes; Concrete; Conferences; Corrosion; Costs; Freeways; Material reinforcement; Prevention
• ITRD Terms: 3455: Bridge; 4755: Concrete; 8525: Conference; 5252: Corrosion; 224: Cost; 6951: Electrode; 2752: Motorway; 9149: Prevention; 9111: Reinforcement (gen)
• Subject Areas: Bridges and other structures; Finance; Highways; Security and Emergencies;

Filing Info

• Accession Number: 00943271
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, , USDOT
• Created Date: Jun 11 2004 12:00AM