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Innovative solutions to buried Portland concrete cement roadways : construction 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 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
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/28507/dot_28507_DS1.pdf
  • File Type:
    Filetype[PDF - 29.94 KB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:7aef7d84ad8ea33b9c86dbe46bb0051cde68b64f6b03d005a04742bdf9fa8f86
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