The behavior of a plain, 14-in. portland cement concrete (PCC) pavement with short, randomly-spaced (13-, 19-, 18- and 12-ft), skewed contraction joints and without a subbase is being compared to an 8-in. continuously reinforced concrete (CRC) pavement overlying a 4-in. bituminous aggregate mixture (BAM) subbase. Internal curing temperature, joint width, faulting, cracking, and smoothness observations have been summarized. Initially, the CRC pavement was smoother than the plain PCC pavement, mainly because construction equipment and procedures differed. So far, the serviceability of both pavements remains high, and no trends have developed because neither pavement has developed any observable distress. At contraction joints, corner deflections were higher where load transfer depends on aggregate interlock rather than dowel bars. Since mean joint openings have exceeded 0.035 in. to 0.040 in., aggregate interlock, according to other research, cannot serve as an effective means of load transfer. Yet, development of joint faulting has been delayed because of other factors such as low traffic volume, joint skewness, pavement thickness, and subgrade support. /FHWA/

  • Supplemental Notes:
    • Sponsored by the Illinois Department of Transportation. Study is conducted in cooperation with the Department of Transportation, Federal Highway Administration.
  • Corporate Authors:

    Illinois Department of Transportation

    126 East Ash Street
    Springfield, IL  United States  62706
  • Authors:
    • McKenzie, L J
  • Publication Date: 1978-6

Media Info

  • Pagination: 28 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00195594
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-IL-PR-78 Final Rpt., FCP 45E2-072
  • Contract Numbers: IHR-506
  • Files: TRIS, USDOT
  • Created Date: Sep 15 1979 12:00AM