CALIBRATION STANDARDS FOR NUCLEAR GAUGES (DENSITY STANDARDS)

THE BACKGROUND OF CALIBRATION RESEARCH FOR NUCLEAR SOIL DENSITY GAGES IS SUMMARIZED. THE PHYSICAL AND MINERAL DESCRIPTIONS OF THE MASTER DENSITY REFERENCE STANDARDS DEVELOPED BY THE CALIFORNIA DIVISION OF HIGHWAYS ARE PRESENTED. FABRICATION AND TESTING DETAILS ARE DISCUSSED; AND TEST DATA FROM THREE GAGES OF DIFFERENT MANUFACTURE ON THE STANDARDS ARE GIVEN. IT IS CONCLUDED THAT IT IS PRACTICAL TO FABRICATE DENSITY STANDARDS, AND THAT THE CALIBRATION CURVE DEVELOPED ON THEM CAN BE USED FOR MOST COMMON CALIFORNIA SOILS. THE USE OF THE MASTER STANDARDS, AND SUPPLEMENTARY STANDARDS IN THE DISTRICTS, IS EXPECTED TO INCREASE THE UNIFORMITY AND ACCURACY OF CALIBRATION OF THE NUCLEAR INSTRUMENTS. /AUTHOR/

• Corporate Authors:

  California Department of Public Works

  1120 N Street
  Sacramento, CA  United States  95814

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914

  Department of Transportation

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Smith, T
  • Shirley, E C
  • Smith, R E
  • Champion, F C
  • Hinricks, D J
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Calibration; Curves (Geometry); Density; Measuring instruments; Nuclear tests; Soils; Standards; Testing
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00215918
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Report/Paper Numbers: F-4-22
• Files: TRIS, USDOT
• Created Date: May 13 1970 12:00AM