VIBRATORY COMPACTION OF BITUMINOUS MATERIALS

Although soil-type vibrating rollers have been used successfully in the past in the UK for light duty operations such as asphalt patching, footpaths, car parks and playgrounds, their compaction of hot bituminous mixes for road construction was not considered satisfactory. More successful developments in other countries were based on incorporating in such equipment certain characteristics to obtain satisfactory densities with hot bituminous mixes. As a result of tests carried out by the TRRL on equipment developed by European manufacturers, 1-1 1/2 t tandem rollers with single vibrating drums were used on light duty work. As it was shown that higher vibration frequencies are required for dense bituminous mixes and lower frequencies for thin layers of wearing course materials, rolling equipment then incorporated adjustable vibratory characteristics. Tests carried out by TRRL and MVEE are described in which vibratory rollers were compared with static rollers. Results indicate that density improvements of some 2% were noted for vibratory rollers designed for compaction of bituminous materials compared with static rollers. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian (Professional Press) Limited

    Morgan-Grampian House, Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Latham, J
  • Publication Date: 1980-5

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00324577
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM