TECHNIQUES FOR REHABILITATING PAVEMENTS WITHOUT OVERLAYS--A SYSTEMS ANALYSIS

The objective of this study is to determine the feasibility of a variety of innovative techniques for rehabilitating pavements without thick overlays and to develop these techniques to the point where they could be evaluated in the field. Plausible techniques of rehabilitation with minimal disturbance to the existing pavement structure were evaluated, taking maximum advantage of the inherent strength and remaining life of the existing pavement structure. The research was specifically directed away from reflection cracking, drainage failures and pavement recycling. 92 potential techniques for rehabilitating pavements without overlays were identified, analyzed, and their value assessed. Among the major conclusions the following were noted: In order to make rational rehabilitation decisions, the decision maker should consider 17 different factors grouped in four categories, costs, performance, energy, and impact; a computer program as designed to consider all 17 decision criteria for each technique; under certain conditions, currently used techniques offered the greatest potential for solving specific problems. It is recommended that the systems analysis utilizing utility theory be refined and further optimized by developing utility input values and weighting factors which meet the needs and goals of specific decision makers. The promising potential techniques identified should be evaluated in the field.

  • Supplemental Notes:
    • This report is an abridgement to a report prepared for the Federal Highway Administration under Contract No. DOT-FH-11-9142.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011
  • Authors:
    • Ledbetter, W B
    • Lytton, R L
    • Britton, S L
    • Sarver, W G
    • Epps, J A
    • Mahoney, J P
    • Rhodes, N F
  • Publication Date: 1977-9

Media Info

  • Features: Figures; Tables;
  • Pagination: 20 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00167880
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 26 1978 12:00AM