DESIGN AND PERFORMANCE OF FLEXIBLE COMPOSITE ROAD PAVEMENTS

The UK Pavement Design Guide now includes a number of options for the construction of flexible composite pavements for heavy traffic; they are summarized in this paper. The most recent designs, along with those they superseded, are based upon the principle that the flexural strength of the cement-bound roadbase should be greater than the combined traffic and thermal warping stresses experienced during service. The thickness of the asphalt layers is required to limit these stresses and to reduce the severity of reflective cracking. A study of the construction and maintenance history of in-service flexible composite pavements, which have carried up to about 100 million standard axles, has revealed that the current designs are capable of carrying, at least, this traffic load. Ongoing studies, which should lead to further improvement in the design of these pavements, are identified and the results to date summarized. (A)

• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • PARRY, A R
  • Phillips, S J
  • POTTER, J F
  • NUNN, M E
• Conference:
  • PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS: TRANSPORT
• Publication Date: 1999-2

Language

• English

Media Info

• Features: References;
• Pagination: p. 9-16
• Serial:
  • Volume: 135
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Bearing capacity; Construction; Cracking; Flexible pavements; Maintenance; Pavement design; Performance; Rigid pavements; Traffic
• ITRD Terms: 3085: Bearing capacity; 3655: Construction; 5211: Cracking; 5910: Durability; 2944: Flexible pavement; 3847: Maintenance; 3055: Pavement design; 2953: Semi rigid pavement; 755: Traffic
• Subject Areas: Construction; Highways; Maintenance and Preservation; Operations and Traffic Management; Pavements;

Filing Info

• Accession Number: 00765598
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: Jul 1 1999 12:00AM