Improved Mix Design for Porous Friction Courses (PFC) on Asphalt Airfield Pavements

In this article the authors describe the use porous friction course (PFC) for applications in hot-mix asphalt (HMA) implementation in airfield pavements. These courses are beneficial in that they improve wheel grip on airfield asphalt in wet conditions. Research conducted by the Airfield Asphalt Pavement Technology Program (AAPTP) into the use of PFCs is presented. Authors discuss recommendations concerning both materials selection as well as asphalt binder selection for PFCs. Materials for PFC include coarse aggregates, the most important characteristics of which are angularity, shape, soundness, toughness, abrasion resistance, and cleanness. Binder selection recommendations include increasing viscosity of the mix to reduce the potential for draindown as well as the proper application of fibers. The article explains that the best characteristics of a properly implemented PFC include high air void contents, shear strength, and high levels of macrotexture.

• Authors:
  • Cooley, Allen
• Publication Date: 2007-11

Language

• English

Media Info

• Media Type: Print
• Features: Photos; Tables;
• Pagination: pp 37-39, 41, 43-44
• Serial:
  • HMAT: Hot Mix Asphalt Technology
  • Volume: 12
  • Issue Number: 6
  • Publisher: National Asphalt Pavement Association (NAPA)

Subject/Index Terms

• TRT Terms: Aggregate gradation; Airport runways; Asphalt pavements; Bituminous binders; Friction course; Pavement design; Permeability; Porous materials; Skid resistance
• Subject Areas: Aviation; Highways; Pavements; Terminals and Facilities;

Filing Info

• Accession Number: 01082281
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Nov 30 2007 7:25AM