The Ordway Colorado Experimental Base Project was a full- scale field experiment constructed with various thicknesses of two Full-Depth hot-mix sand asphalt bases and one Full- Depth asphalt concrete base and one thickness of a standard design with untreated base and subbase layers. Two different subgrades (an A-6 and an A-7-6) were included in the experiment. The project was opened to traffic in 1965. Routine measurements were discontinued in 1976. Final measurements were made in 1978. The Project was planned as an AASHO Road Test satellite project to be useful in extending the AASHO Road Test findings to Colorado conditions. The primary objectives were: 1) to determine relative thickness of one asphalt concrete base, two hot-mix sand asphalt bases and one standard design with untreated base and subbase required to give an equal level of pavement performance. 2) To relate certain measured properties of the pavement and the pavement components to observed levels of performance using both empirical and theoretical models for pavement behavior. Field performance and laboratory data obtained during the period 1965-1978 have been summarized. Results of analyses of the data are included in the report. (FHWA)

  • Corporate Authors:

    Asphalt Institute

    2696 Research Park Drive
    Lexington, KY  United States  40511-8480

    Colorado Department of Highways

    4201 East Arkansas Avenue
    Denver, CO  United States  80222
  • Authors:
    • Shook, J F
    • Kallas, B F
  • Publication Date: 1980-10

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00325953
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-OO-RD-80-8 Final Rpt., FCP 45C3-154
  • Created Date: Mar 12 1981 12:00AM