VIBRATORY ROLLING OF LONGITUDINAL JOINTS IN ASPHALT PAVEMENTS

UTFOERANDE AV ASFALTBELAEGGNINGARS LAENGSGAAEENDE FOGAR

In this study two joint construction methods have been investigated: cold and hot joint. At cold joint the lanes are laid after each other. A hot joint is obtained at paving in echelon. Then constructing cold joints two compaction techniques were tried: conventional method with joint compaction from the cold lane and a new technique with joint compaction only from the hot lane. Consequently the new technique simply means that the conventional joint compaction is excluded. Two types of vibration tandem rollers (Dynapac CC 20 and CC 40) and six different asphalt mixes were included in the programme. The results can be summarized as follows: at cold joints the density distribution was discontinuous over the joint. In the previously laid lane the density decreased close to the edge. Paving in echelon (hot joint) did not give this discontinuity. At cold joints conventional compaction technique gave normally somewhat higher degree of compaction (about 1%) compared to the new technique. This was valid close to the joint both in the first laid lane and the second laid lane. /TRRL/

  • Corporate Authors:

    Royal Institute of Technology, Sweden

    Valhallavagen 79
    Stockholm,   Sweden  100 44
  • Authors:
    • Edling, L
    • Nerep, J
  • Publication Date: 0

Language

  • Swedish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 36 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137819
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Examensarbete 1975
  • Files: ITRD, TRIS
  • Created Date: Apr 13 1977 12:00AM