NUCLEAR MOISTURE DENSITY GAUGES

SEVEN DIRECT TRANSMISSION NUCLEAR INSTRUMENTS WERE RENTED FROM TROXLER AND CAMPBELL COMPANIES. THREE OF THE INSTRUMENTS WERE USED IN CONSTRUCTION CONTROL ON INTERSTATE 10 ON THE MISSISSIPPI GULF COAST AND THE REMAINING FOUR INSTRUMENTS WERE PAIRED TO USE IN DEMONSTRATIONS AT PROJECT OFFICES THROUGHOUT THE STATE. SIDE BY SIDE TESTS WERE CONDUCTED WITH THE TWO TYPES OF GAUGES AND CONVENTIONAL METHODS. RESULTS INDICATE THE NUCLEAR INSTRUMENTS WILL PROVIDE THE BEST CONSTRUCTION CONTROL IN THE LEAST TIME AND AT THE LOWEST COST. STANDARD DEVIATIONS OBTAINED WITH CONVENTIONAL MEASUREMENTS WERE AS MUCH AS THREE TIMES AS GREAT AS WITH NUCLEAR INSTRUMENTS. DENSITY TESTS CONDUCTED BY ASTM METHODS PRODUCED STANDARD DEVIATIONS COMPARABLE TO THOSE OBTAINED WITH NUCLEAR INSTRUMENTS. NUCLEAR INSTRUMENTS OF THE TYPE TESTED (TROXLER 2401 AND CAMPBELL MODEL B) ARE RECOMMENDED AS THE STANDARD FOR DENSITY CONTROL, WHILE A LARGE WATER BALLOON (OR SAND CONE) WOULD BE AN ACCEPTABLE ALTERNATE. /AUTHOR/

• Corporate Authors:

  Mississippi State Highway Department

  P.O. Box 1850
  Jackson, MI  United States  39215

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lanz, L
  • Stroud, B
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Construction management; Costs; Measuring instruments; Nuclear tests
• Old TRIS Terms: Construction control
• Subject Areas: Construction; Finance; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00215957
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jun 1 1971 12:00AM