DENSITY OF ROAD CORES DETERMINED BY A NUCLEAR MEASURING METHOD

DICHTHEID VAN ASFALTBOORKERNEN BEPAALD VOLGENS NUCLEAIRE MEETMETHODE

A description is given of the authors' experiences with a new nuclear measuring instrument to determine the density of (cores and Marshall-tablets, the Marshall-Density-Meter (MDM1). They used four different methods to determine the density of the cores, namely (a) underwater and surface water weighing, (b) the weighing and measuring method (and a combination of (a) and (b)), (c) the paraffin-method and (D) the MDM-apparatus. From the point of view of reliability no clear preference is given to any one of these methods. The MDM-method has several advantages. The meter operates and registers readings completely automatically and the cores can be used for further research after the determination of the density. On the other hand there are a few disadvantages, such as the presence of a radioactive source and the long measuring time of five minutes per core. The authors came to the conclusion that the use of the MDM-apparatus is not preferable to the conventional measuring methods. (TRRL)

  • Availability:
  • Corporate Authors:

    Verenging Het Nederlandsche Wegencongres

    Postbus 2200
    The Hague,   Netherlands 
  • Authors:
    • Brand, W van der
    • Kemps, A G
  • Publication Date: 1983-10

Language

  • Dutch

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 305-307
  • Serial:
    • WEGEN
    • Volume: 57
    • Issue Number: 10
    • Publisher: CROW
    • ISSN: 0043-2067

Subject/Index Terms

Filing Info

  • Accession Number: 00396189
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jan 31 1986 12:00AM