PARTICULAR CIVIL ENGINEERING APPLICATION OF A TWIN-TUBE GAMMA RADIATION PROBE

UTILISATION D'UN PROTOTYPE DE DOUBLE-SONDE GAMMA A UN PROBLEME PARTICULIER DU GENIE CIVIL

Details are given of the twin-tube gamma radiation probe developed for determining the time-related variation in the moisture content of the subgrade and other pavement layers. The apparatus consists of an emitter (caesium 137 radioactive source), a detector (geiger-muller counter) and ancillary electronic equipment (portable transistorised counter). The tests carried out comprised the calibration of the probe, the determination of measurement accuracy, and the determination of the optimum geometry of the device for the application described. Results are given of a series of measurements made at measuring stations along the A6 motorway. Recommendations are put forward on how to use the apparatus for various civil engineering problems. (TRRL)

  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • Gabilly, Y
    • Chaigne, P
    • Gaudicheau, A
  • Publication Date: 1970-10

Media Info

  • Features: Figures; Photos;
  • Pagination: 30 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00325307
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Translation 2831 Monograph
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM