00217899

Component

http://onlinepubs.trb.org...s/hrr/1971/376/376-021.pdf

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/

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.

01035647

pp 123-135

1971

Highway Research Record

0309019907

Digital/other

Figures (14) ; References (11) ; Tables (4)

Laboratory tests; Polished aggregates; Skid resistance tests

Geotechnology; Highways

TRIS, TRB

Jun 5 1972 12:00AM

• A SYNTHESIS OF CASE LAW JURISPRUDENCE RELATING TO WET- WEATHER HIGHWAY CONDITIONS
• ANTI-SKID MEASUREMENT
• ASSEMBLY AND USE OF ACCIDENT DATA
• CALIBRATION OF BRAKE FORCE TRAILERS AND SKID-RESISTANCE PHOTO-INTERPRETATION
• COMPARISON OF HIGHWAY PAVEMENT FRICTION MEASUREMENTS TAKEN IN THE CORNERING-SLIP AND SKID MODES
• CORRECTIVE PROGRAMS FOR IMPROVING SKID RESISTANCE
• FACTORS INFLUENCING AGGREGATE SKID-RESISTANCE PROPERTIES
• FRICTION AND THE MECHANICS OF SKIDDING AUTOMOBILES
• GROOVING PATTERN STUDIES IN CALIFORNIA
• HIGH-SPEED SKID TESTING AT UNIVERSITY OF TENNESSEE
• HISTORY OF ANTI-SKID PROGRAM MANAGEMENT IN THE UNITED STATES
• INFLUENCE OF VEHICLE AND PAVEMENT FACTORS ON WET-PAVEMENT ACCIDENTS
• INTERACTION OF VEHICLE AND ROAD SURFACE
• INVESTIGATION OF INJURY-PRODUCING AUTOMOBILE ACCIDENTS AT THE HIGHWAY RESEARCH INSTITUTE
• PROBLEMS ASSOCIATED WITH ANTI-SKID PROGRAM MANAGEMENT
• SAFETY INSPECTION OF THE HIGHWAY AND THE VEHICLE
• SPOTTING SKID-PRONE SITES ON WEST VIRGINIA HIGHWAYS
• SPRAY GRIP ANTI-SKID SURFACING MATERIALS
• STATUS OF SKID MANAGEMENT PROGRAM IN TEXAS
• SUMMARY OF WORKSHOP ON ANTI-SKID PROGRAM MANAGEMENT
• USE OF ACCIDENT DATA TO IDENTIFY WET-PAVEMENT LOCATIONS IN PENNSYLVANIA