Electrically conductive polymer concrete overlay as secondary anode for cathodic protection

This report describes the development of a premixed electrically conductive polymer concrete overlay for use on bridge decks and other concrete members, in conjunction with cathodic protection systems. A field demonstration was performed on a bridge deck (with corroding reinforcing steel) in Pulaski, Virginia where an active cathodic protection system uses the electrically conductive overlay as the secondary anode to uniformly distribute the current across the bridge deck surface. The performance of the overlay cathodic protection system was monitored for 18 months. The data shows that corrosion of the reinforcing steel embedded in the bridge deck was arrested. The overlay is soundly bonded, and there are no indications that the overlay is wearing due to traffic. This report is the conclusion of the research study. Details of the mix design and the installation of the conductive polymer concrete overlay are described in the Interim Report FHWA-RD-88-145 dated January 1989 (A).

• Corporate Authors:

  United States. Federal Highway Administration. Office of Engineering and Highway Operations

  McLean, Virginia  United States 
• Authors:
  • Fontana, J J
  • Reams, W
  • Scannell, W
  • Sprinkel, M
• Publication Date: 1990-5

Language

• English

Media Info

• Pagination: 67p
• Serial:
  • Issue Number: FHWA/RD-90-005

Subject/Index Terms

• TRT Terms: Bridge decks; Cathodic protection; Concrete; Condition surveys; Corrosion; Materials; Metals; Overlays (Pavements); Pavement layers; Polymers
• ATRI Terms: Bridge deck; Bridge inspection; Cathodic protection; Concrete; Corrosion; Materials; Metal; Overlay; Pavement layer; Polymer
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 01413726
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI, USDOT
• Created Date: Aug 24 2012 3:27AM