BRIDGE DECK DETERIORATION: A SUMMARY OF REPORTS

A DETECTOR WAS DEVELOPED WHICH MAPS THE DELAMINATED AREA OF CONCRETE ON A BRIDGE DECK. IT IS AN ELECTRONICALLY CONTROLLED INSTRUMENT WHICH INTERPRETS ACOUSTICAL SIGNALS TAKEN FROM THE CONCRETE AS THE INSTRUMENT CART ROLLS ALONG THE BRIDGE. A PROTOTYPE WAS CONSTRUCTED AND CONDITIONED FOR FIELD SERVICE. MATERIALS FOR SURFACE TREATMENT OF CONCRETE BRIDGE DECKS WERE TESTED AS DETERRENTS TO FREEZE-THAW SCALING DAMAGE. THE MOST EFFECTIVE MATERIALS WERE IDENTIFIED, AND METHODS AND SCHEDULES OF APPLICATIONS WERE DEVELOPED. AIR ENTRAINED CONCRETE WAS FOUND TO BE THE MOST RESISTANT TO FREEZE-THAW SCALING, AND A MIXTURE OF LINSEED OIL AND KEROSENE WAS FOUND TO BE EFFECTIVE IN COMBATING FREEZE-THAW DAMAGE AT A RELATIVELY LOW COST. MATERIALS AND METHODS FOR REPAIRING DECKS WITH 11/2 IN. TO 2 IN. THICK CONCRETE OVERLAYS WERE DEVELOPED, TESTED, AND PROVED IN FIELD INSTALLATIONS. IT WAS FOUND THAT A 2 IN. THICK PLAIN CONCRETE OVERLAY BONDED WITH GROUT TO A WELL PREPARED BASE PROVIDES A DURABLE OVERLAY WHICH ADDS TO THE STIFFNESS OF THE SLAB AMD PROVIDES A GOOD RIDING SURFACE. MATERIALS AND METHODS FOR STRUCTURAL REPAIR OF CRACKED OR FRACTURED CONCRETE WITH EPOXY RESIN WAS STUDIED IN THE LABORATORY. /FHWA/

  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011
  • Authors:
    • Furr, H L
    • Ingramll
    • Moore, W M
    • Swift, G
  • Publication Date: 1972-12

Media Info

  • Pagination: 104 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00206517
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Final Rept
  • Files: TRIS, USDOT
  • Created Date: Jul 16 1974 12:00AM