Development of Alternative High Friction Surfaces for Oklahoma

Oklahoma Department of Transportation (OK DOT) wanted to identify maximum surface friction performance of asphalt surface mixtures using regionally available aggregates as alternatives to a standard high friction surface treatment using resin binder and imported calcined bauxite aggregate. The laboratory study was divided into two phases. Phase I compared aggregate/mixture combinations that were expected to have the best potential to provide high pavement surface friction characteristics. Phase II studied the types of tack coats to determine the best tack application for the selected friction surface. The OK DOT staff identified regionally available sources with good friction performance characteristics, including mine chat, rhyolite, sandstone, and granite. The mixture type selected for the study was open graded friction course (OGFC). A testing and conditioning protocol developed at National Center for Asphalt Technology (NCAT) was used for measuring the friction performance of pavement surfaces. Based on the Phase I friction results, the sandstone OGFC section was selected for further study on the NCAT Pavement Test Track. Variables in the Phase II tasks were one type of tack coat and two application rates. Preparing laboratory slabs involved compacting the underlying slab, conditioning the surface of the slab, applying the tack coat, and placing the OGFC layer on top. Cores were taken from the slabs for bond strength shear testing. Cores from the slabs with the higher tack coat application rate had higher interface bond strength.

  • Corporate Authors:

    National Center for Asphalt Technology

    Auburn University, 277 Technology Parkway
    Auburn, AL  United States  36830

    Oklahoma Department of Transportation

    Materials and Research Division, 200 NE 21st Street
    Oklahoma City, OK  United States  73105

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Heitzman, Michael
    • Vrtis, Michael
  • Publication Date: 2015-12

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Pagination: 21p

Subject/Index Terms

Filing Info

  • Accession Number: 01633381
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-OK-15-10
  • Contract Numbers: ODOT SP&R Item Number 2269
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: Apr 3 2017 10:59AM