CRUSHED ASPHALT AND CONCRETE AS UNBOUND ROAD MATERIALS - COMPARISONS OF FIELD MEASUREMENTS AND LABORATORY INVESTIGATIONS

In order to investigate the use of recycled asphalt and crushed concrete as unbound road materials, a test road was constructed at the closed-down Oslo airport Fornebu in late 1999. Three different "secondary" materials are tried out as subbase and base courses; crushed asphalt, crushed concrete and a 50/50 mix crushed asphalt/crushed concrete. Comparisons with standard crushed rock (subbase) and asphalt (base) materials are also included. The road is now being followed up by frequent field measurements (rutting, evenness, FWD and distress registrations). Parallel to the field investigations, an extensive laboratory program is being carried out on the same materials. Preliminary results are very promising regarding stiffness and deformation properties. Both rut measurements in field and triaxial tests in the laboratory are in favour of the secondary materials. The investigations will continue through 2002. For the covering abstract see ITRD E118503.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058093980
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • AURSTAD, J
  • Hoff, Inge
• Conference:
  • PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON THE BEARING CAPACITY OF ROADS AND AIRFIELDS, LISBON, PORTUGAL, 24-26 JUNE 2002.
• Publication Date: 2002

Language

• English

Media Info

• Features: References;
• Pagination: p. 967-77
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bitumen; Concrete; Conferences; Deformation; Recycling; Stiffness; Surveillance
• Uncontrolled Terms: Unbound base
• ITRD Terms: 2990: Basecourse; 4963: Bitumen; 4755: Concrete; 8525: Conference; 5595: Deformation; 4573: Recycling (mater); 5931: Stiffness; 9101: Surveillance; 2970: Unbound base
• Subject Areas: Data and Information Technology; Highways;

Filing Info

• Accession Number: 00963856
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5809-398-0
• Files: ITRD
• Created Date: Oct 3 2003 12:00AM