DETECTION OF BRIDGE DECK DETERIORATION

A INSTRUMENT FOR DETECTING DELAMINATION WAS DEVELOPED IN THIS STUDY TO REPLACE THE TECHNIQUES WHICH INVOLVE SUBJECTIVE JUDGMENT. THE BASIC DESIGN OF THE INSTRUMENT AND THE RESULTS OF PRELIMINARY FIELD EVALUATIONS WERE DESCRIBED IN RESEARCH REPORT 130-4 ENTITLED "AN INSTRUMENT FOR DETECTING DELAMINATION IN CONCRETE BRIDGE DECKS". THE ABILITY OF THE DETECTOR TO DISTINGUISH DELAMINATED CONCRETE FROM SOLID CONCRETE HAS BEEN VERIFIED BY SPECIALLY CONSTRUCTED TEST SLABS (BOTH DELAMINATED AND SOLID) AS WELL AS BY CORING TEN DIFFERENT BRIDGES. ON EACH BRIDGE, ONE CORE WAS TAKEN AT A LOCATION WHERE DELAMINATION WAS NOT INDICATED AND ANOTHER AT AN APPARENTLY IDENTICAL LOCATION WHERE DELAMINATION WAS INDICATED. AGREEMENT HAS BEEN PERFECT. NO EVIDENCE OF DELAMINATION OR HORIZONTAL CRACKING COULD BE FOUND UPON EXAMINATION OF THE WALLS OF THE CORE HOLES AT THE TEN LOCATIONS WHERE DELAMINATION WAS NOT INDICATED; WHEREAS DELAMINATION WAS VISIBLE IN EACH OF THE OTHER TEN CORE HOLES.

  • Supplemental Notes:
    • Contract RESSTUDY 2-18-68-130RPT NO 130-9
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011
  • Authors:
    • Moore, W M
  • Publication Date: 1972-8

Media Info

  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00208106
  • Record Type: Publication
  • Source Agency: Texas State Department of Highways & Public Transp
  • Report/Paper Numbers: Intrm Rpt
  • Files: TRIS, STATEDOT
  • Created Date: May 15 1974 12:00AM