Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia

Details

• Creators:
  Clemeña, Gerardo G. ; Pritchett, Milton B ; Napier, Claude S
• Corporate Creators:
  Virginia. Dept. of Transportation ; United States. Federal Highway Administration ; Virginia Transportation Research Council (VTRC)
• Subject/TRT Terms:
  • Concrete bridges
  • Cathodic protection
  • Bridges
  • Reinforcing bars
• Publication/ Report Number:
  VTRC 03-R11
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Final report;8/9712/02.
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  Corrosion of reinforcement in concrete bridges has been a major factor in limiting the service life of many such structures. As part of a concerted effort to identify cost-effective options for eliminating corrosion of reinforcement, the application of cathodic prevention was tried in a recently constructed concrete bridge deck. The incorporation of an impressed-current cathodic prevention system in a new concrete bridge deck while it was being constructed was made possible by the use of titanium mesh ribbon anodes coated with mixed-metal oxide. The anodes were spaced 32 cm (13 in.) apart and transversely across the entire bridge deck to allow for the trouble-free placement of the concrete. The system has been operating for almost 2 years with no extraordinary problems. A comparison of the long-term cost of this option with those of other options, such as the use of corrosion-resistant clad bars or stainless steel bars, indicated that this option is not economically favorable.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19576/dot_19576_DS1.pdf
• File Type:
  [PDF - 1.46 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:b7c3d709d70ea4ff47e8caf39ea6c20b89d349ea57564f687f36c8d09fe03a9df1a178151fac71bd398eeaa7733eeb8c45f798b95d42d1f5806402382d184ab9