THE EVALUATION OF A SELECTION OF PAVEMENT REHABILITATION DESIGN METHODS AS APPLIED TO A BITUMEN TREATED BASE (BTB) PAVEMENT . 5TH CONFERENCE ON ASPHALT PAVEMENTS FOR SOUTHERN AFRICA (CAPSA 89). PROCEEDINGS HELD IN SWAZILAND, 5-9 JUNE, 1989

In this paper two experimental pavement sections, each containing a thick bitumen treated base on relatively weak support, are structurally analysed using various pavement rehabilitation design methods: the TRH12 method; the Asphalt Institute method; the Dynamic Cone Penetrometer (DCP) method; the Transport and Road Research Laboratory (TRRL) deflection method; the University of Illinois method; University of Delft method; the Shell overlay design method; and South African Mechanistic design method. The main objective of this paper is the evaluation of the various methods and procedures within each method on the bitumen treated base pavements in terms of their accuracy of predictions of remaining life to a stated terminal condition and of their rehabilitation designs for various traffic loadings. The predictions are compared with results obtained through the accelerated testing of the pavement sections. Shortcomings and limitations in the methods are identified and where possible recommendations are given to improve their use. It is shown that the predictions of remaining life and the rehabilitation designs of the various methods vary considerably. The indiscriminate use of rehabilitation design methods could results in gross inaccuracies in the design of rehabilitation requirements for pavements containing thick bitumen treated base layers.(A) For the abstracts of some of the design methods discussed see IRRD 50111, 233650, 279157 and 228676. For the covering abstract of the conference see IRRD 828827.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0620143959
• Corporate Authors:

  CAPSA

  PO BOX 993
  Manzini,   Swaziland 
• Authors:
  • Jordaan, G J
  • Servas, V P
  • Savage, P F
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 52-67
• Serial:
  • Publication of: CAPSA
  • Publisher: CAPSA

Subject/Index Terms

• TRT Terms: Bearing capacity; Bitumen; Conferences; Deflection; Laboratories; Loads; Pavement design; Pavement layers; Rutting; Smoothness; Test procedures; Thickness
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00604023
• 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