FIELD TEST OF THE OSU/ODH ULTRASONIC PAVEMENT THICKNESS GAGE

THE OSU/ODH GAGE MEASURED THE THICKNESS OF HIGHWAYS IN OHIO TO WITHIN PLUS OR MINUS 2% AT 50% OF THE TEST LOCATIONS. AN ACCURACY OF PLUS OR MINUS 3% WAS ACHIEVED AT 78% OF THE TEST LOCATIONS. THE USE OF ONE CORED SAMPLE FROM EACH SECTION OF HIGHWAY TO CALIBRATE THE GAGE WOULD RESULT IN THICKNESS MEASUREMENTS ACCURATE TO WITHIN PLUS OR MINUS 3% OF 94% OF THE TEST LOCATIONS. LABORATORY RESEARCH WAS CONDUCTED DURING AND AFTER THE COMPLETION OF THE FIELD TESTS. THIS WORK RESULTED IN IMPROVED TECHNIQUES OF ACOUSTIC VELOCITY MEASUREMENT WHICH COULD IMPROVE THE ACCURACY OF THE GATE BY AS MUCH AS 1%. THIS WOULD RESULT IN AN ACCURACY OF PLUS OR MINUS 2% AT 78% OF THE TEST LOCATIONS WITHOUT THE USE OF A CALIBRATION CORE. THE GATE WAS DEVELOPED FOR PORTLAND CEMENT CONCRETE. DURING THE LABORATORY PHASE OF THIS PROGRAM, THE GAGE WAS EVALUATED ON A TEST BLOCK OF BITUMINOUS CONCRETE. THE RESULTS INDICATE THAT THE OSU/ODH GAGE CAN MEASURE THE THICKNESS OF BITUMINOUS MATERIALS, ALTHOUGH ATTENUATION PROBLEMS BECOME VERY SEVERE AT TEMPERATURES ABOVE 100 F. /AUTHOR/

  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Ohio Department of Highways

    Columbus, OH  United States  43210
  • Authors:
    • Mailer, H
    • Golis, M J
    • McMaster, R C
    • Raab, T J
    • Hayes, L R
  • Publication Date: 0

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00214519
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Study No Ees-374
  • Files: TRIS, USDOT
  • Created Date: Feb 15 1972 12:00AM