This paper was presented as a special paper at session 6. This paper presents the results of recent investigations and design developments for both new and overlay pavements which are considered implementable at this time (1978). These developments improve the potential to: (a) accommodate changed loading requirements expeditiously; (b) better utilise available materials; and (c) accommodate new materials. The methodology takes advantage of the improved ability to predict specific modes of distress resulting from a variety of traffic (e.g. fatigue and rutting) and environmentally related (e.g. thermal fracture) causes. Essentially, structural pavement sections are selected to minimise particular distress modes. In this context both new and overlay pavement design may be thought of as a process whereby a pavement structure is checked, and modified if required to insure that the various forms of distress considered critical will be either precluded or their effects reduced to tolerable levels for the selected design period. A number of procedures presented at the fourth international conference on the structural design of asphalt pavements held in August 1977, utilise such an approach and are briefly evaluated within this framework. Included are summaries of the procedures developed by Shell Research, the National Cooperative Highway Research Program of the Transportation Research Board (NCHRP project 1-10B) and the U.S. Federal Highway Administration for overlay pavements. (a) (TRRL)

Media Info

  • Features: Figures; References;
  • Pagination: p. 113-142
  • Serial:
    • Volume: 9
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00310051
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jun 26 1980 12:00AM