BRIDGE DECK DETERIORATION STUDY

PRELIMINARY SURVEYS MADE IN 1959 AND 1960 INDICATED VARIOUS TYPES OF BRIDGE DECK DAMAGE. THE DAMAGE WAS SUFFICIENT TO WARRANT AN EXTENSIVE BRIDGE DECK DETERIORATION STUDY. THE OBJECTIVES WERE TO DETERMINE THE EXTENT AND CAUSES OF DETERIORATION AND THE DEVELOPMENT OF PREVENTIVE AND MAINTENANCE TREATMENTS. NINE REPORTS HAVE BEEN PUBLISHED FROM THIS STUDY. THIS IS A FINAL REPORT WHICH SUMMARIZES SOME PROJECT FINDINGS. ALL OF THE 2700 BRIDGES WERE SURVEYED IN 1961. FIELD WORK ON SPECIFIC ASPECTS WAS CONTINUED FOR MORE THAN TEN YEARS. NONDESTRUCTIVE DETECTION OF CORROSION HAS BEEN BEGUN QUITE RECENTLY. DETAILED ANNUAL SURVEYS FOR THREE CONSECUTIVE YEARS EFFECTIVENESS OF ASPHALT TYPE BITUMINOUS SEALS IN PREVENTING DETERIORATION ON NEW CONCRETE DECK SURFACES. EIGHT DIFFERENT COVER MATERIALS WERE PLACED ON SIXTEEN DECKS FOR ANOTHER EVALUATION OF SEALING MATERIALS. SPECIAL STUDIES WITH EPOXIES WERE ALSO MADE. EPOXY INJECTION, SEALS, AND PATCHING WERE EVALUATED. CAUSES AND PREVENTION OF SCALING, CORROSION, AND SPALLING WERE INVESTIGATED. SPALLING, SCALING, CRACKING AND DELAMINATIONS OF HOLLOW PLANES WERE OFTEN FOUND SEPARATELY OR TOGETHER. THESE PROBLEMS APPEAR TO BE CAUSED BY A COMBINATION OF CIRCUMSTANCES RATHER THAN BY A SINGLE FACTOR. FACTORS WHICH APPEAR TO BE SIGNIFICANT IN MINIMIZING DAMAGE TO BRIDGE DECKS INCLUDE THE FOLLOWING: TWO INCHES OR MORE OF COVER OVER TOP STEEL; LOW WATER-CEMENT RATIO; AIR-ENTRAINED CONCRETE; QUALITY CONSTRUCTION, INSPECTION AND MAINTENANCE; CORRECTION OF ANY DEFECT AS SOON AS FOUND; AND PROTECTION OF THE DECK SURFACE. /NTIS/

  • Supplemental Notes:
    • Contract 64-3
  • Corporate Authors:

    Kansas State Highway Commission

    Planning and Development Department
    , KS  USA 
  • Authors:
    • Bukovatz, J E
    • Crumpton, C F
    • Worley, H E
  • Publication Date: 1973

Media Info

  • Pagination: 53 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00208089
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Finl Rept
  • Files: TRIS, USDOT
  • Created Date: Jun 11 1974 12:00AM