Field Evaluation of Reinforced Concrete Repairs Using Hydrodemolition, Galvanic Cathodic Protection, or Impressed Current Cathodic Protection

Details

• Creators:
  Sharp, Stephen R ; Ozyildirim, Celik ; Sprinkel, Michael M
• Corporate Creators:
  Virginia Transportation Research Council (VTRC)
• Corporate Contributors:
  Virginia. Department of Transportation
• Subject/TRT Terms:
  • Cathodic protection
  • Cost estimating
  • Delamination
  • Field studies
  • Guidelines
  • Highway bridges
  • Laboratory studies
  • Reinforced concrete
  • Repairing
  • Anodes
  More +
• Publication/ Report Number:
  VTRC 25-R22
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia ; United States
• Edition:
  Final Report
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  For the Virginia Department of Transportation (VDOT), substructure repairs are costly, and the durability is a concern. Current conventional concrete removal methods commonly use chipping hammers and shotcrete or self-consolidating concrete (SCC), plus discrete galvanic point (DGP) anodes, for such repairs. The types of concrete VDOT uses in these repairs are resistant to chloride ion infiltration because of low permeability, which their high-resistivity values indicate. When DGP anodes are used in patch repairs, lower resistivity concretes with higher permeability are recommended to facilitate ionic current flow.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84529/dot_84529_DS1.pdf
• File Type:
  [PDF - 3.22 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7a8ebab38dee2cb2a86af93c1fa313781e1f42c3bb225aa84a194a52e5e2b6e11c6cb77eaa52371f445a8519c0ad0a57de550f93919e621fce96155ae0927c1e