A FIELD EVALUATION OF COMPACTION CONTROL WITH NUCLEAR GAGES

THE EXPERIENCE GAINED IN THE USE OF PORTABLE NUCLEAR GAGES IN COMPACTION CONTROL ON ELEVEN PROJECTS AT VARIOUS LOCATIONS IN CALIFORNIA IS REPORTED. BOTH BACKSCATTER AND TRANSMISSION TYPE GAGES OF VARIOUS MANUFACTURE WERE EMPLOYED. IT WAS FOUND THAT THE BACKSCATTER TYPE GAGES AVAILABLE DID NOT HAVE THE BASIC CAPACITY TO BE USED IN GENERAL COMPACTION CONTROL. THE TRANSMISSION TYPE GAGE WAS FOUND TO BE SATISFACTORY. IT WAS CONCLUDED THAT THE TIME REQUIRED AND OVERALL COST OF NUCLEAR DENSITY TESTING WAS GREATER THAN THAT OF THE PREVIOUS METHOD, BUT WAS COMPENSATED FOR BY BETTER COVERAGE OF THE PROJECT. THE GENERAL EXPERIENCE WITH SAFETY, GAGE BREAKDOWNS, GAGE DESIGN, AND TEST METHOD IS DISCUSSED. AS A RESULT OF THIS RESEARCH, THE CALIFORNIA DIVISION OF HIGHWAYS HAS ADOPTED THE TRANSMISSION TYPE NUCLEAR DENSITY TEST AS AN OPTIONAL SPECIFIED METHOD FOR CONTROL OF COMPACTION. /AUTHOR/

  • Supplemental Notes:
    • Hpr, F-4-3
  • Corporate Authors:

    California Division of Highways

    Bridge Department
    Sacramento, CA  United States  05914

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Smith, T
    • Weber, W G
    • Howe, D R
    • Smith, R E
    • Gipson, C T
    • LISTER, R
  • Publication Date: 1968-11-25

Subject/Index Terms

Filing Info

  • Accession Number: 00214484
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Mar 18 1994 12:00AM