EFFECTS OF CONCRETE COVER DEPTH AND ABSORPTION ON BRIDGE DECK DETERIORATION

This report deals with the usefulness of knowledge of concrete cover-depth distribution and concrete absorption in predicting the occurrence and extent of deterioration on monolithic bridge deck surfaces. Although the extent of deterioration for individual spans could not be accurately predicted, the distribution of cover depth over the reinforcing steel was as important factor in determining the expected time to the onset of deterioration -- with increased minimum cover (as expected) providing longer protection against deterioration. After cover depth, however, it appears that factors extrinsic to the concrete and not included in this study (i.e., rate of salting, deck drainage, traffic, etc.) have a greater effect on performance than does concrete porosity as measured by absorption, at least within the range encountered in this study. The minimum cover required to protect bridge deck spans in New York State for periods up to 30 years is projected, based on data in this report and on relationships developed by FHWA researchers on simulated bridge decks. (FHWA)

  • Supplemental Notes:
    • Prepared in cooperation with the Department of Transportation, Federal Highway Admin. study title: "Performance of Monolithic Bridge Decks".
  • Corporate Authors:

    New York State Department of Transportation

    Engineering Research and Development Bureau, 1220 Washington Avenue
    Albany, NY  United States  12232

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Leslie, W G
    • Chamberlin, W P
  • Publication Date: 1980-2

Media Info

  • Pagination: 35 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00311088
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-NY-RR 75,, FCP 44B1-464,, Final Report
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jun 26 2003 12:00AM