A STUDY OF BLENDS OF TRINIDAD LAKE ASPHALT AND BITUMEN IN ROLLED ASPHALT

The soluble bitumen in Trinidad Lake asphalt epure has a high viscosity and if this is blended with a 50 pen grade bitumen, normally used for the manufacture of rolled asphalt, it produces a material with a high resistance to deformation and with suitable weathering properties to maintain a good resistance to skidding. Work has shown that the incorporation of epure does not significantly alter the optimum binder content of sand asphalts as determined using the Marshall test. Wheel-tracking tests indicate that a worthwhile improvement in resistance to deformation, comparable with that obtained using a "heavy duty" bitumen and suitable for the most heavily trafficked roads, can be obtained by the addition of 50 per cent of epure to a 50 pen grade bitumen. The use of such a binder would be dependent on the practicability and economic viability of manufacturing such a blend. (Author/TRRL)

  • Corporate Authors:

    Transport and Road Research Laboratory

    Old Wokingham Road
    Crowthorne RG11 6AU, Berkshire,   England 
  • Authors:
    • Jacobs, F A
  • Publication Date: 1980

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 8 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00324331
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: TRRL SR561 Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Sep 16 1981 12:00AM