A pavement surface which provides both high skid resistance and some degree of preventive control to hydroplaning is the open-graded plant mix seal also called the Asphaltic Concrete Friction Course (ACFC). In an effort to understand some of the unusual maintenance problems associated with ACFC, the materials and processes involved are discussed, and the modifications that have been made over the years are reviewed. These modifications include the use of tack coat (liquid grade asphalts/emulsions in urban areas); reduction of percentage of fine material; reduction of mix asphalt content to 5.5 percent and the requirement, in the construction contract, of an additional 1 percent asphalt to be applied as flush coat utilizing emulsion. Other maintenance problems are also discussed.

Media Info

  • Features: Figures;
  • Pagination: p. 136-141
  • Serial:
    • Issue Number: 59

Subject/Index Terms

Filing Info

  • Accession Number: 00129925
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 14 2002 12:00AM