MATERIAL PROPERTIES OF ZERO-MAINTENANCE FLEXIBLE PAVEMENT

This study involved models selected as suitable for the prediction of important distresses that have occurred historically in flexible pavements and the determination of material properties that will provide 20 years of satisfactory performance without maintenance and an additional 10-20 years of satisfactory performance with normal maintenance. To accomplish the overall objective, results were used from a previous study that identified the most important distresses occurring in flexible pavements, identified the material properties that affect those distresses, and selected mathematical models to predict those distresses by using the identified material properties. This paper presents that range of values selected for each of the material properties and discusses the distressses predicted by using the selected mathematical models. The distresses selected for study included fatigue cracking, rutting, and low-temperature cracking. The mathematical models selected for the analysis were VESYS for modeling fatigue cracking and rutting and the Shahin- McCullough model for low-temperature cracking. Input values were selected for each of these models, and ranges of the material properties affecting distress were established. The results for each study have been included and discussed, and practical criteria have been cited to evaluate the level of material properties required to provide zero-maintenance performance. The effects of each set of material properties used are identified, and the trade-offs of the affects of material properties on the distresses are discussed. (Author)

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-7
  • Monograph Title: Evaluation and analysis of flexible pavement components and properties
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00322990
  • Record Type: Publication
  • ISBN: 0309030684
  • Files: TRIS, TRB
  • Created Date: Apr 15 1981 12:00AM