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Innovative solutions to buried portland cement concrete roadways : first interim report.

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 meters (18 to 20 feet) wide forty or more years ago. Since that ; time these same highways have been paved and widened to 6.7 or 7 meters (22 or 24 feet) with ; hot bituminous pavements to accommodate increased traffic volumes. Bituminous materials ; were used instead 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 meter (1 to 3 ; feet) 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/28508/dot_28508_DS1.pdf
  • File Type:
    Filetype[PDF - 1.87 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:516a0ed836274f4d5abd97c6fee3955bb7906cbe331b2f674800886dec94751f
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