ASPHALT CONTENT STUDIES BY THE NUCLEAR METHOD

A STUDY OF ASPHALT CONTENT DETERMINATION BY NEUTRON-THERMALIZATION TECHNIQUES WAS PERFORMED AT VARIOUS BITUMINOUS BATCH PLANTS WITH A PROTOTYPE ASPHALT CONTENT GAUGE. THE GAUGE HAS BEEN SPECIFICALLY DESIGNED TO PROVIDE A SENSITIVE MEASURE OF BITUMEN CONTENT UNDER FIELD TESTING CONDITIONS. THE NEUTRON-THERMALIZATION GAUGE REPORTED HAD PREVIOUSLY BEEN TESTED IN THE LABORATORY ON CONTROLLED SAMPLES. AN INVESTIGATION WAS MADE INTO GAUGE RESPONSE FOR DIFFERENT TYPES OF AGGREGATE AND ALSO FOR SIMILAR AGGREGATES OF VARYING GRADATION. TESTS WERE CONDUCTED ON DIFFERENT BATCHES OF ASPHALT CEMENT OF A GIVEN MANUFACTURE IN AN ATTEMPT TO STUDY THE VARIATION OF HYDROGEN CONTENT INHERENT IN THESE SAMPLES. RESULTS FOR THE CALIBRATED GAUGE WERE COMPARED TO DESIGN CONTENT FIGURED AND EXTRACTION RESULTS. /AUTHOR/

  • Corporate Authors:

    Pennsylvania Department of Transportation

    Bureau of Materials, Testing and Research, 1118 State State
    Harrisburg, PA  USA  17112

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Grey, R L
  • Publication Date: 1970-5

Subject/Index Terms

Filing Info

  • Accession Number: 00215929
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Report/Paper Numbers: 64-15
  • Files: TRIS, STATEDOT
  • Created Date: Sep 28 1970 12:00AM