Innovative solutions to buried Portland concrete cement roadways : construction report.
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Innovative solutions to buried Portland concrete cement roadways : construction report.



English
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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 Concrete Cement

    (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.

    Concrete is a rigid pavement capable of supporting weight with little deflection. Bituminous is a

    flexible pavement that 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
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:
    Filetype[PDF-29.94 KB]

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