U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Friction management on Kansas Department of Transportation highways.

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Kansas State University. Transportation Center
  • Corporate Contributors:
    Kansas. Dept. of Transportation. Bureau of Research
  • Subject/TRT Terms:
  • Publication/ Report Number:
    Report No. K-TRAN: KSU-14-5
  • Resource Type:
    Tech Report
  • Geographical Coverage:
  • Corporate Publisher:
    Kansas State University. Transportation Center
  • Abstract:
    The Federal Highway Administration (FHWA) estimates that about 70% of wet pavement crashes can be

    prevented or minimized by improving pavement friction. High Friction Surface Treatment (HFST), a speciallydesigned

    thin surface application of hard aggregates and thermosetting resins like epoxy, has been proven to be an

    effective method to increase road surface friction. Calcined bauxite has been predominantly used in the United States

    as the hard aggregate in combination with an epoxy binder for HFST. However, this treatment is expensive since the

    calcined bauxite is imported. 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
  • Funding:
    C2000
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:8fa532bcc95215538e8cce75dfc0dbc04f2d435c734f32a73d3892d104582b0b
  • Download URL:
  • File Type:
    Filetype[PDF - 2.96 MB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP