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Friction management on Kansas Department of Transportation highways : technical summary.

File Language:
English


Details

  • Creators:
  • Corporate Contributors:
    Kansas. Dept. of Transportation. Bureau of Research
  • Subject/TRT Terms:
  • Publication/ Report Number:
    Report Number: K-TRAN: KSU-14-5
  • Resource Type:
    Tech Report
  • Geographical Coverage:
  • Corporate Publisher:
    Kansas. Dept. of Transportation. Bureau of Research
  • Abstract:
    The objectives of this study are to evaluate the performance of a local aggregate in HFST and to evaluate

    the 3-dimensional laser profiler for measuring pavement texture. Slab specimens of hot-mix asphalt

    (HMA) were compacted in the laboratory and treated with HFST systems incorporating both calcined

    bauxite and a local, hard flint aggregate from Picher, Oklahoma. The treated HMA specimens were

    then tested with a Dynamic Friction Tester (DFT) and a Circular Track Meter (CTM) to determine the

    frictional coefficient and texture depth, respectively. Also, Hamburg Wheel Tracking Device tests were

    conducted on these HFST systems to evaluate wearing resistance under repetitive wheel load. Field

    measurements of texture depths on HFST were also done. Statistical analysis was performed to compare

    the performance of high friction surfaces prepared with different aggregate epoxy combinations.

    The results show that flint aggregate can be a suitable substitute for the calcined bauxite in HFST.

    Field measurements also showed marked improvements in texture depth with HFST. Texture depth and

    skid number determined by the ASTM skid trailer vary with pavement surface types and treatments.

    Mean Texture Depth (MTD) of high friction surface treatment is generally greater than 1 mm. A good

    correlation between skid number and MTD was found for the MTD range of 0.5 to 1.5 mm.

  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:9fbd43e992c28000287dc76a6a65825bf930e6148d46f6eacc7c71f2137e5cc4
  • Download URL:
  • File Type:
    Filetype[PDF - 653.14 KB ]
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