FINGERPRINTING VERSUS FIELD PERFORMANCE OF PAVING GRADE ASPHALTS. FINAL REPORT

The objective of this study was to determine whether there have been significant changes in the properties of asphalt cement in recent years, especially since the 1973 oil embargo. To achieve this objective, 284 asphalt samples were tested and compared with the FHWA Fingerprint File and other recently published data. From a detailed analysis of the data it was concluded that the temperature susceptibility of asphalt cement has increased in recent years. No single asphalt cement property was related to tenderness. Proper gradation, mixture design, and field control will minimize the possibility of tenderness. Heat of immersion tests may identify the asphalts that are susceptible to tenderness, but more research is needed to verify this hypothesis. Finally, current specification test methods are not adequate to predict the field performance of asphalt cement. Since mixture design and construction quality control play a major role in determining the performance of asphalt cement, the performance of the asphalt should be evaluated as part of the overall performance of the mixture. (Author)

  • Corporate Authors:

    Pennsylvania State University, University Park

    Pennsylvania Transportation Institute, Transportation Research Building
    University Park, PA  United States  16802

    Federal Highway Administration

    Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
    McLean, VA  United States  22101
  • Authors:
    • Anderson, D A
    • Dukatz, E L
  • Publication Date: 1985-3

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 143 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00399282
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-RD-84-095, FCP 34D1-053
  • Contract Numbers: RC-82030
  • Files: TRIS, USDOT
  • Created Date: Feb 28 1987 12:00AM