STRUCTURAL EVALUATION AND OVERLAY DESIGN: ANALYSIS AND IMPLEMENTATION. SIXTH INTERNATIONAL CONFERENCE, STRUCTURAL DESIGN OF ASPHALT PAVEMENTS, VOLUME I, PROCEEDINGS, UNIVERSITY OF MICHIGAN, JULY 13-17, 1987, ANN ARBOR, MICHIGAN

Increasing use of the Falling Weight Deflectometer for pavement evaluation has led to more widespread data being available on insitu effective elastic stiffnesses of pavement layers. This parameter is a dominant one in evaluation using mechanistic methods. An improved back-analysis procedure is described, involving a computer program PADAL, that allows accurate and unique values of insitu effective stiffness to be determined for each significant pavement layer. The program has also been used to determine optimum radial locations for the deflection transducers used in FWD surveys on particular pavements. The evaluation procedure using PADAL forms part of a design method for remedial treatment of asphalt pavements using a mechanistic approach and two case studies are considered. The first of these involves an old structure with a granular base, while the second illustrates how the FWD and the associated computations can be applied to identifying damage to a new lean concrete base caused by construction traffic overloading.

• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • BROWN, S F
  • Tam, W S
  • Brunton, J M
• Publication Date: 1987

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1013-28
• Serial:
  • Publication of: Michigan University, Ann Arbor
  • Publisher: University of Michigan, Ann Arbor

Subject/Index Terms

• TRT Terms: Asphalt pavements; Case studies; Computer programs; Conferences; Design methods; Evaluation; Falling weight deflectometers; Granular bases; Overlays (Pavements); Pavement layers; Pavement performance; Pavements; Stiffness
• Old TRIS Terms: Lean concrete base
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00485661
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1989 12:00AM