ARIZONA'S EXPERIENCES WITH ASPHALTIC CONCRETE FRICTION COURSES

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.

• Supplemental Notes:
  • Proceedings of the Los Angeles, California meeting November 12 through 15, 1973
• Corporate Authors:

  American Association of State Highway and Transportation Officials

  341 National Press Building
  Washington, DC  United States  20004
• Authors:
  • Morris, G R
• Conference:
  • American Assn of State Hwy & Transp Office Proc
• Publication Date: 1973-11

Media Info

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

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt content; Building materials; Emulsified asphalt; Fine materials; Friction; Pavement maintenance; Paving; Tack coats
• Subject Areas: Highways; Materials; Pavements;

Filing Info

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