CONDITION SURVEY OF PRESTRESSED CONCRETE BRIDGES

Results of a study of prestresed concrete bridge structures exposed to a deicing salt environment are presented. In-service bridges incorporting pre- and post-tensioned systems were sampled and results indicated that the primary cause of deterioration of prestressed members was penetration of runoff water containing deicing salts through concrete cover and through anchorage zones. Improperly designed and maintained joints and draingage systems were the primary pathways for salt ingress. Procedures, parameters, and threshold values for detection of corrosive environments and assessing the condition of prestressing steel in bridge components also are discussed.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 60-68
  • Serial:
    • Concrete International
    • Volume: 11
    • Issue Number: 9
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00488385
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 30 1989 12:00AM