COMBIFALT, AN ULTRA THIN WEARING COURSE PLACED IN A BITUMINOUS MEMBRANE

Combifalt is a newly developed wearing course, where the sealing properties of the surface dressing are combined with the excellent performance of an open asphalt. Combifalt is layed by placing approximately 2 cm of an open asphalt concrete in approximately 800 g/sq m bitumen emulsion. The emulsion is modified with SBS thermoplastic rubber. A special paver is used for the operation. The paver consists of a standard paving equipment on which an emulsion tank and spreader system is installed. The hot mix is placed directly in the emulsion layer and in that way the emulsion is broken. The paver and the trucks do not drive in the emulsion layer. The result of this operation is an intact membrane. Using Combifalt several advantages are obtained. Above the very good sealing of the old pavement, environmental and safety advantages such as minimising the use of aggregate resources, noise reduction compared to standard pavement, good friction and reduced splash can be mentioned. Combifalt is well suited for light to heavy traffic. (A) For the covering abstract see IRRD 885061.

• Corporate Authors:

  European Asphalt Pavement Association

  P.O. Box 175
  3620 AD Breukelen,   Netherlands 

  EUROBITUME (EUROPEAN BITUMEN ASSOCIATION)

  PLACE MADOU 1, TOUR MADOU, 25TH FLOOR
  BRUSSELS,   Belgium  1030
• Authors:
  • PEDERSEN, E
  • LADEHOFF, L
• Conference:
  • EURASPHALT & EUROBITUME CONGRESS, STRASBOURG, 7-10 MAY 1996. VOLUME 3. PAPER E&E.7.171
• Publication Date: 1996

Language

• English

Media Info

• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Conferences; Hot coated materials; Maintenance; Rubber; Wearing course (Pavements)
• Uncontrolled Terms: Modifications
• ITRD Terms: 4963: Bitumen; 4967: Bituminous mixture; 8525: Conference; 4997: Hot coated material; 3847: Maintenance; 9048: Modification; 7494: Rubber; 2980: Wearing course
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00738196
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jul 30 1997 12:00AM