ADVANCES IN FOAMED BITUMEN TECHNOLOGY . 5TH CONFERENCE ON ASPHALT PAVEMENTS FOR SOUTHERN AFRICA (CAPSA 89). PROCEEDINGS HELD IN SWAZILAND, 5-9 JUNE, 1989

Stabilising roads with foamed bitumen is now an old technique that has generally been applied to fine, poorly graded materials in many parts of the world including South Africa. In the UK two new techniques using foamed bitumen have been introduced - FOAMSTAB in situ recycling, FOAMSPRAY surface dressing. The paper describes what these techniques are, how they have been introduced, the design procedure, and the benefits and problems that have occurred in use in the UK. FOAMSTAB recycling has the ability to produce in-situ full depth bituminous pavements of equivalent strength to new hot mix pavements without the need for removal and replacement of any existing material. In the UK roads have been renewed by FOAMSTAB recycling to save up to one half the cost, two thirds the time and three quarters of the energy needed for traditional remove and replace methods. FOAMSPRAY applies hot penetration bitumen directly to the road without the need for cut back or emulsified bitumens and has been used in surface dressing in the UK and France with cost and performance benefits.(A) For related work see IRRD 810865. For the covering abstract of the conference see IRRD 828827.

  • Availability:
  • Corporate Authors:

    CAPSA

    PO BOX 993
    Manzini,   Swaziland 
  • Authors:
    • Akeroyd, FML
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00604056
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-620-14395-9
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM