PAVEMENT SLIPPERINESS

THIS REPORT COVERS THE ANALYSIS OF THE SKID TEST DATA DEVELOPED BY THE ALABAMA STATE HIGHWAY DEPARTMENT IN THEIR 1970 STATEWIDE SURVEY OF THE SLIPPERNESS OF THE EXISTING PAVEMENTS USING TWO WHEEL SKID TRAILER. THE DATA COVERS TESTS RUN ON 22 DIFFERENT PAVEMENT SURFACES. THESE WERE THEN CATEGORIZED AS EITHER DANGEROUS, CAUTIOUS, OR GOOD. THE MOST SKID RESISTANT PAVEMENTS IN THE PLANT MIX AND SURFACE TREATMENT GROUPS ARE THE ONES USING SLAG AS A COARSE AGGREGATE. PORTLAND CEMENT CONCRETE PAVEMENTS ARE HIGHLY SKID RESISTANT UNTIL EXPOSED TO HEAVY TRAFFIC LOADS FOR AN EXTENDED PERIOD OF TIME. WELL GRADED COARSE SANDS CONTRIBUTE TO THE SKID RESISTANCE OF ASPHALTIC CONCRETES WHEN USED AS A FINE AGGREGATE AND PRODUCE A SKID RESISTANT PAVEMENT WHEN USED IN A SAND ASPHALT HOT MIX. FAIRLY DEFINITE GUIDELINES HAVE BEEN DEVELOPED FOR WRITING FUTURE SPECIFICATIONS FOR BITUMINOUS PAVEMENTS IN ALABAMA THAT WILL INSURE SKID RESISTANT PAVEMENTS.

Media Info

  • Features: Figures; Tables;
  • Pagination: 50 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00207453
  • Record Type: Publication
  • Report/Paper Numbers: HP&R 61
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jun 28 1972 12:00AM