This report describes asphalt compaction and stability tests on a winget dynapac cc20 6.15 mg tandem vibrating roller. The asphalt materials were laid and compacted in two courses, a base course consisting of a single, 150-mm thick layer, and a 45mm thick wearing course. A series of 70mm diameter core samples were removed from the full depth of the test area eleven days after laying, and the results show that a state of compaction of 4 per cent air voids was achieved after 4 passes of the roller in both base and wearing courses. After 6 passes the air void content of the base course decreased to 2 per cent. The results are compared with those obtained with a typical 8 mg smooth- wheel roller. For a given number of passes the 6.15 mg tandem vibrating roller achieved similar or higher states of compaction than was obtained with the 8 mg smooth wheel machine. The results of the stability tests show that toppling angles of 39 degrees 05 and 38 degrees 50 were obtained when tilting left hand side down and right hand side down respectively. /TRRL/

  • Corporate Authors:

    Military Vehicle & Engineering Establishment, Eng

    Barrack Road
    Christchurch, Dorset,   England 
  • Publication Date: 1974-8


  • English

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00127802
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: TR T158 R&D Rept.
  • Files: ITRD, TRIS
  • Created Date: Dec 3 1975 12:00AM