LABORATORY INVESTIGATION OF THE EFFECT OF PARTICLE SHAPE CHARACTERISTICS AND GRADATION OF AGGREGATES ON THE SKID RESISTANCE OF ASPHALT SURFACE MIXTURES

THE REAL OBJECTIVE IN SKID TESTING IS TO DETERMINE THE CONTRIBUTION OF THE PAVEMENT TO TIRE-PAVEMENT FRICTION. FRICTION FORCE BETWEEN A STANDARD TIRE AND THE PAVEMENT IS MEASURED BECAUSE THERE IS, AT PRESENT, NO DIRECT WAY OF CHARACTERIZING THE PAVEMENT SURFACE. FRICTION FORCE DEPENDS ON PAVEMENT AND TIRE; THEREFORE, THE TIRE CANNOT PROPERLY BE REGARDED AS PART OF THE MEASURING SYSTEM. THE SKID TESTER, WITHOUT TIRE, IS DISCUSSED ON PRINICPLES OF MEASUREMENT TECHNIQUES, AND THE CONCLUSION IS REACHED THAT STATISTICAL METHODS MUST BE EMPLOYED TO COMPENSATE FOR THE LACK OF PRECISION IN SKID TESTING. SKID TESTER DYNAMICS DO NOT AFFECT MEAN SKID RESISTANCE; THEREFORE, NO BASIC DESIGN CHANGES ARE REQUIRED. PRECISION CAN BE IMPROVED BY TIGHTER TEST PROCEDURES. THESE REQUIRE IMPROVED TRAINING AND AWARENESS OF OPERATORS, IMPROVED CONTROL OF TEST SPEED, LATERAL POSITION, AND PAVEMENT WATERING. /ASTM/

• Authors:
  • Huang, E Y
  • Ebrachimzadeh, T
• Publication Date: 1972-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 117-37
• Serial:
  • ASTM Special Technical Publications
  • Issue Number: 530
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Accuracy; Dynamic tests; Friction factor; Measurement; Pavement performance; Skid resistance tests; Statistical analysis; Tires
• Subject Areas: Data and Information Technology; Highways; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00207580
• Record Type: Publication
• Report/Paper Numbers: S Tech Pub
• Files: TRIS
• Created Date: Dec 4 1973 12:00AM