FIELD FRICTION PERFORMANCE OF SEVERAL EXPERIMENTAL TEST SECTIONS

THERE IS AN EVER INCREASING AWARENESS OF THE EFFECT OF THE COARSE AGGREGATE TYPE (USED IN PAVEMENT SURFACES) ON SKID RESISTANCE. ONE PHASE OF THIS STUDY HAS BEEN AN ATTEMPT TO STUDY THE WEAR OR POLISH CHARACTERISTICS OF COARSE AGGREGATES UNDER ACTUAL TRAFFIC. EXPERIMENTAL SECTIONS WITH VARIOUS COARSE AGGREGATE TYPES HAVE BEEN PLACED AT DIFFERENT LOCATIONS THROUGHOUT THE STATE. FRICTION READINGS HAVE BEEN OBTAINED AT 20 MILES PER HOUR AND AT 50 MILES PER HOUR AT PERIODIC TIME INTERVALS WITH A LOCKED WHEEL SKID TEST TRAILER. TWO SURFACES, HOT MIX ASPHALTIC CONCRETE AND SURFACE TREATMENTS, WERE USED IN THESE SECTIONS.

• Corporate Authors:

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Underwood, J P
• Publication Date: 1971-3

Subject/Index Terms

• TRT Terms: Coarse aggregates; Experimental roads; Friction; Hot mix asphalt; Polished aggregates; Skid resistance; Skid trailers
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00217502
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Rept No 126
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jun 28 1972 12:00AM