TWO LABORATORY METHODS FOR EVALUATING SKID RESISTANCE PROPERTIES OF AGGREGATES

A DESCRIPTION AND EVALUATION OF TWO METHODS ARE GIVEN FOR DETERMINATION OF AGGREGATE SKID-RESISTANCE PROPERTIES IN THE LABORATORY. IN THE FIRST METHOD, PAVEMENT SAMPLES MANUFACTURED FROM THE AGGREGATE TO BE EVALUATED ARE PLACED IN A CIRCULAR TRACK AND SUBJECTED TO WEAR FROM SMALL-DIAMETER PNEUMATIC TIRES. NO ABRASIVE OR WATER IS USED, AND PAVEMENT SPECIMENS CAN USUALLY BE BROUGHT TO TERMINAL POLISH IN ABOUT 16 HOURS. SKID-RESISTANCE VALUES ARE DETERMINED BY USING THE BRITISH PORTABLE TESTER. IN THE SECOND METHOD, COARSE AGGREGATES ARE POLISHED DRY IN A JAR MILL WITH A CHARGE OF FLINT PEBBLES. PAVEMENT SAMPLES ARE MADE FROM THE POLISHED AGGREGATES AND TESTED FOR SKID RESISTANCE BY USING THE BRITISH PORTABLE TESTER. POLISH RATE IS DETERMINED BY EXPOSING A NUMBER OF SAMPLES OF THE SAME AGGREGATE FOR DIFFERENT AMOUNTS OF TIME TO ESTABLISH A WEAR-TIME CURVE. RESULTS FROM THE TWO METHODS ARE DIFFERENT IN VALUE LEVEL BUT SHOW A LINEAR CORRELATION. ALSO, AGGREGATES WERE RATED IN THE SAME ORDER IN BOTH METHODS. TWENTY AGGREGATES WERE USED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1971/376/376-021.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019907
• Supplemental Notes:
  • Sponsored by Committee on Surface Properties--Vehicle Interaction and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Mullen, W G
  • Dahir, S H
  • Barnes, B D
• Publication Date: 1971

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 123-135
• Monograph Title: Anti-Skid Program Management and Related Papers
• Serial:
  • Highway Research Record
  • Issue Number: 376
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Laboratory tests; Polished aggregates; Skid resistance tests
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217899
• Record Type: Publication
• ISBN: 0309019907
• Files: TRIS, TRB
• Created Date: Jun 5 1972 12:00AM