REPORT ON THE USE OF TROXLER 104 PROBE AND 115 GAUGE FOR ASPHALT CONTENT DETERMINATION - FINAL REPORT

THE EVALUATION OF TWO COMMERCIAL MOISTURE CONTENT GAGES - A DEPTH PROBE AND A SURFACE GAGE FOR ASPHALT CONTENT DETERMINATION OF BITUMINOUS MIXTURES BY NEUTRON SCATTERING IS DESCRIBED. TWO PROCEDURES WERE TRIED, ONE FOR EACH TYPE OF EQUIPMENT. THE DEPTH PROBE PROVED TO BE UNSUITABLE DUE TO HEATING PROBLEMS. CALIBRATION STANDARDS WERE MOLDED FOR THE SURFACE GAGE AT SIX DIFFERENT ASPHALT CONTENTS. LINEAR REGRESSION EQUATIONS FOR COUNT RATIO VS. ASPHALT CONTENT PRODUCED ESTIMATED ERRORS OF PLUS OR MINUS 0.8 TO PLUS OR MINUS 1.1 PERCENT ASPHALT. THESE VALUES WERE HIGHER THAN THE STATE'S REQUIREMENT OF PLUS OR MINUS 0.4 PERCENT. /BPR/

  • Supplemental Notes:
    • Hpr-1/1/, BPR NO 17, STUDY ITEM V-D
  • Corporate Authors:

    Florida State Road Department

    ,    

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Todor, P C
  • Publication Date: 1966-3

Subject/Index Terms

Filing Info

  • Accession Number: 00210345
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Apr 23 1994 12:00AM