DETERMINATION OF ASPHALT AND MOISTURE CONTENT BY THE NUCLEAR METHOD

A NUCLEAR ASPHALT CONTENT GAUGE WAS EVALUATED TO DETERMINE THE VARIABLES WHICH AFFECT THE PRECISION OF THE MEASUREMENT, TO INVESTIGATE THE PRACTICALITY OF USING THE INSTRUMENT IN FIELD CONTROL OF HOT MIX ASPHALTIC CONCRETE, AND TO EXPLORE OTHER USES FOR THE GAUGE IN NORMAL TESTING OPERATIONS. IN MEASURING ASPHALT CONTENT, PARTICULAR ATTENTION WAS GIVEN TO COMPENSATING FOR ANY MOISTURE IN THE SAMPLES AND TO DEVELOPING A COMMON CALIBRATION CURVE IN WHICH ASPHALT CONTENT IS EXPRESSED AS A PERCENT OF ABSOLUTE VOLUME. THE USE OF 1000 GRAM MOLDED CYLINDRICAL HOT MIX SAMPLES FOR CALIBRATING THE GAUGE WAS EXPLORED. HIGHWAY BASE AND SUBGRADE MATERIALS WERE USED IN A MOISTURE CALIBRATION STUDY TO DETERMINE THE FEASIBILITY OF USING THE NUCLEAR GAUGE IN OTHER AREAS OF CONTROL. IT WAS CONCLUDED THAT THE GAUGE IS A PRACTICAL, ACCURATE, SAFE, AND USABLE TOOL FOR MEASURING THE ASPHALT AND MOISTURE CONTENT IN HIGHWAY MATERIALS. /AUTHOR/

  • Supplemental Notes:
    • Dept Res RePT SS 17.1, 132 PP
  • Corporate Authors:

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701
  • Authors:
    • White, J R
  • Publication Date: 1971-8

Subject/Index Terms

Filing Info

  • Accession Number: 00211701
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Jan 31 1972 12:00AM