Comparison of Friction Properties of Friction-Course Pavement Systems During Winter Storm Events

The frictional properties of two asphalt pavement surfaces, an open-graded friction course (OGFC) and a proprietary Ultra-Thin Friction Course (UTFC) product, were evaluated during two winter storm events on February 2005. A rock salt mixture pre-wetted with calcium chloride was used to treat the pavement surfaces. Two different friction measurement devices, a C-µ Friction Meter (Deceleration-type device) and a Skid Trailer (ASTM E-274 Locking Wheel device), were used to monitor pavement surface friction during the winter storm event. The friction measurements showed that the OGFC pavement section, which contained approximately 11% more air voids, maintained surface friction properties comparable to or better than the UTFC section. Limited testing on a dense-graded asphalt (DGA) section showed that both friction course sections obtained comparable friction results to the dense-graded surface. However, the surface friction properties of the dense-graded asphalt declined more sharply than the friction course sections during the storm event. Friction measurements were also found to be consistently higher on the more trafficked lanes for both friction course sections. The snow accumulation rate (i.e. how fast the snow had accumulated on the roadway shoulder) showed to be correlated to change in pavement surface friction during the winter storm events.

  • Availability:
  • Authors:
    • Bennert, Thomas A
    • Cooley Jr, L Allen
  • Publication Date: 2006-1

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 152-163
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01054617
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 20 2007 9:49PM