THE POLISHING OF ROAD STONES ON A DRUM APPARATUS

THE POLISHING OF ROAD STONES IS A SLOW PROCESS, AFFECTED BY TRAFFIC DENSITY AND PASSENGER CAR-TRUCK RATIO, TIRE SLIP AND SLIP DIRECTION, POLISHING AGENT COMPOSITION, AND PRECIPITATION HISTORY. THE MONITORING OF THE POLISHING PROCESS BY SKID TESTS IS INFLUENCED BY THE LATERAL POSITION OF THE TEST WHEEL PATH WITHIN THE WHEEL TRACK, SEASON AND TEMPERATURE. THIS LACK OF CONTROL OVER THE POLISHING AND TEST CONDITIONS LED TO THE DEVELOPMENT OF A DRUM TYPE LABORATORY POLISHING APPARATUS. THE DRUM POLISHING APPARATUS AVOIDS SOME OF THE DISADVANTAGES OF OTHER LABORATORY POLISHING METHODS BY PERMITTING A HIGH NUMBER OF PASSES, USING A ROLLING PASSENGER CAR TIRE AS A LAPPING MEANS, AND BY INCORPORATING A FRICTION TEST METHOD, WHICH DOES NOT REQUIRE REMOVAL OF THE TEST PANELS. THIS REPORT IS A FIRST ACCOUNT OF THE PERFORMANCE OF THE DRUM POLISHING APPARATUS DURING EXTENDED OPERATION AND OF THE RESULTS OBTAINED WITH IT./AUTHOR/

• Supplemental Notes:
  • No 17, 56 pP
• Corporate Authors:

  Pennsylvania State University, University Park

  Automotive Safety Research Program
  University Park, PA  United States  16802
• Authors:
  • KUMMER, H W
• Publication Date: 1968-4

Subject/Index Terms

• TRT Terms: Drums (Containers); Equipment; Friction tests; Pavements; Polished aggregates; Skid resistance; Skid resistance tests; Skidding; Stone; Test procedures; Testing equipment
• Uncontrolled Terms: Laboratory equipment
• Old TRIS Terms: Drums
• Subject Areas: Geotechnology; Highways; Pavements; Safety and Human Factors;

Filing Info

• Accession Number: 00207018
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 2 1994 12:00AM