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Innovative solutions to buried portland cement concrete roadways : second interim.

File Language:
English


Details

  • Creators:
    Marquis, Brian
  • Corporate Creators:
    Maine. Dept. of Transportation. Transportation Research Division
  • Subject/TRT Terms:
  • Publication/ Report Number:
    99-11
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Maine
  • Corporate Publisher:
    Maine. Dept. of Transportation
  • Abstract:
    Maine has hundreds of miles of highway that were constructed of ; Portland Cement Concrete (PCC) roughly 6 to 6.1 m (18 to 20 ft) wide forty ; or more years ago. Since that time these same highways have been paved ; and widened to 6.7 or 7 m (22 or 24 ft) with hot bituminous pavements to ; accommodate increased traffic volumes. Bituminous materials were used in ; place of concrete due to the ease of placement and price of material. ; PCC is a rigid pavement capable of supporting weight with little ; deflection. Hot bituminous pavement is flexible and will bend to distribute ; weight across the roadway. When the highway is expanded beyond the ; concrete slab there is a sharp decrease of support for this bituminous ; pavement resulting in settlement over prolonged use. This settlement may ; also be compounded by poor drainage capabilities of the underlying soils ; causing the unsupported pavement to drop lower than the existing height of ; the concrete supported pavement. This creates a longitudinal crack aligning ; with the concrete slab edge about 0.3 to 1 m (1 to 3 ft) from the right edge of ; pavement. Pavement to the right of this crack deteriorates to the point where ; maintenance crews attempt to smooth it out with cold patch year after year. ; Paving over the entire roadway is an option but, due to reflective cracking, ; the edge of pavement begins to deteriorate within 2 or 3 years.
  • Format:
    PDF
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/28509/dot_28509_DS1.pdf
  • File Type:
    Filetype[PDF - 696.51 KB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:5d84254f13dbdc577724d62f00dde99d16b6e9bb3d74f6786b1366fb6b447b30
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