AIR-GAP TECHNIQUE IN MEASUREMENT OF DENSITY BY NUCLEAR SURFACE DENSITY GAGE

Errors due to soil composition variation effect, the inherent uncertainties in counting rate measurement and the effect of rough and irregular soil surfaces affect the density measurements by nuclear gages. The air-gap method using the dual-gage principle has been successfully used for minimizing these errors in the field measurements. A comparison of different calibration relations is also made in the case of air-gap method. (Author/TRRL)

• Supplemental Notes:
  • Highway Research Bulletin No. 4.
• Corporate Authors:

  Indian Roads Congress

  Jamnagar House, Shahjahan Road
  New Delhi,   India  110 011
• Authors:
  • Krishnar, D M
  • VIJ, G K
• Publication Date: 1977

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 19-33

Subject/Index Terms

• TRT Terms: Accuracy; Backscattering; Density; Measurement; Measuring instruments; Methodology; Nuclear gages; Properties of materials; Soils
• Uncontrolled Terms: Soil properties
• Old TRIS Terms: Air gaps; Density measurement
• ITRD Terms: 6155: Apparatus (measuring); 6160: Back scattering apparatus; 5908: Density; 6440: Error; 6136: Measurement; 9102: Method; 4156: Soil
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00310176
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Oct 8 1980 12:00AM