EVALUATION OF THE PERFORMANCE OF ULTRASONIC EQUIPMENT FOR PAVEMENT THICKNESS MEASUREMENT

PULSE VELOCITY AND LONGITUDINAL RESONANT FREQUENCY IN THE THICKNESS DIRECTION ARE DETERMINED BY USING ULTRASONIC EQUIPMENT. PULSE VELOCITY IS THE SPEED THAT SOUND TRAVELS THROUGH A MATERIAL AND RESONANT FREQUENCY IS THAT CONDITION WHERE THE SLAB WILL VIBRATE AT THE SAME FREQUENCY AS SOME OUTSIDE SOURCE. TRANSDUCERS USED TO MEASURE PULSE VELOCITY PRODUCED GOOD, REPRODUCIBLE MEASUREMENTS OF CONCRETES. HOWEVER, TRANSDUCERS USED TO MEASURE RESONANT FREQUENCY FAILED TO DIFFERENTIATE BETWEEN SLAB RESONANCE AND NATURAL RESONANCE. /AUTHOR/

  • Supplemental Notes:
    • No 14, 20 PP, 6 FIG, 1 TAB, 13 REF, 6 APP
  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  USA  47907-1284
  • Authors:
    • Scholer, C F
    • PAVLOVICH, R D
  • Publication Date: 1968-7

Subject/Index Terms

Filing Info

  • Accession Number: 00213997
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 18 1971 12:00AM