High Friction Surface Treatment Material Monitoring Project

Central Region Alaska Department of Transportation and Public Facilities (DOT&PF) will be installing 28 highway applications of High Friction Surface Treatment (HFST) in Alaska starting spring 2016. HFST is a pavement surfacing system with exceptional skid-resistant properties that are not typically acquired by conventional pavement materials. The treatment system is composed of a hard aggregate and binder. The aggregate is a thin layer of specially engineered Calcined Bauxite aggregate, a durable high friction topping. Binders vary by manufacturer and are generally proprietary products consisting of bitumen-extended epoxy resins, epoxy-resin, polyester-resin, polyurethane-resin, acrylic-resin, or Methyl Methacrylate (MMA) epoxy. Although this treatment has been widely used in the lower 48 states, it is not currently in wide use in Alaska. This research project will compare initial product friction values to 3 consecutive post-construction years of collected friction values at each site. Adjacent control site conditions will also be compared with annual international roughness index (IRI), rut, cracking and friction values collected by the DOT&PF's Pavement Management System contract.

  • Supplemental Notes:
    • 28 HFST sites were installed summer 2016. Initial and control site friction values collected for each site. First post-construction friction values were collected summer, 2017 using Dynamic Friction Tester by DOT&PF staff. Pavement Management System contract collected IRI, Rut, Crack information fall 2017. Post construction report and results from 1 year of monitoring completed. contact project manager for report.


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Filing Info

  • Accession Number: 01626286
  • Record Type: Research project
  • Source Agency: Alaska Department of Transportation and Public Facilities
  • Files: RiP, STATEDOT
  • Created Date: Feb 21 2017 8:16PM