MEASUREMENT OF DENSITY OF THIN ASPHALT LAYERS BY BACKSCATTERING OF AM 241 GAMMA RADIATION

The measurement of density by surface gamma backscattering gauges is now common. The usually available gauge is designed for use on soils, and measures the density of material up to depths reported to be of the order of 8 cm. In this case, it was required that the depth measured should be of the order of 2.5 cm. This report describes the development, design and calibration of a gauge which measures density only to this depth. /TRRL/

• Corporate Authors:

  Negev Institute for Arid Zone Research

  Division of Engineering Sciences
  Beer-Sheva,   Israel 
• Authors:
  • Preiss, K
  • Supe, C
• Publication Date: 1970-9

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Backscattering; Bituminous pavements; Density; Depth; Gamma rays; Measurement; Measuring instruments
• Old TRIS Terms: Density measurement
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00081741
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: No. 17 Dept. Rpt
• Files: ITRD, TRIS
• Created Date: Apr 22 1975 12:00AM