This report discusses the durability of skid resistance of some flexible pavement surface mixes constructed using special aggregates which have been found to produce surface with improved skid resistance. The ability of these mixes to maintain an improved level of skid resistance is unknown. Evaluation of this ability involved determining the influence of traffic volumes and accumulated traffic on the improved frictional characteristics. Special aggregates utilized were flint chat (Joplin Flint chat), lightweight aggregate (expanded shale), porphyry (trap rock), blast furnace slag, steel slag, and wet bottom boiler slag. Also used alone or in combination with special aggregates were crushed Black River gravel and the following limestones: Bethany Falls, Burlington, Callaway, Chouteau, Higginsville, Plating, St. Louis, Ste. Genevieve, Warsaw, and Winterset. Some limestone mixes were tested which incorporated variations from normal guideline percentages of material retained on the #10 sieve and/or the 1/2" sieve. Data on a majority of test sections did not provide reliable wear factors from which to judge the potential future value of the mixes. As a result, these test sections were judged on average skid numbers for the sections and variability of skid numbers over the testing period. /FHWA/

  • Record URL:
  • Supplemental Notes:
    • Sponsored by the Missouri State Highway Department. Conducted in cooperation with the Department of Transportation, Federal Highway Administration.
  • Corporate Authors:

    Missouri State Highway Department

    Division of Materials and Research, State Highway Building
    Jefferson City, MO  United States  65101
  • Publication Date: 1978-12

Media Info

  • Pagination: 132 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00189358
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-MO-79-74-4 Final Rpt.
  • Contract Numbers: Study 74-4
  • Files: TRIS, USDOT
  • Created Date: Apr 12 1979 12:00AM