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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

STUDIES OF PAVEMENT WEAR CAUSED BY STUDDED PASSENGER CAR TYRES ON STRAIGHT TEST TRACKS, THE "BROMMA TRACK"

A TEST TRACK COMPOSED OF EIGHT STRAIGHT TEST SECTIONS WITH DIFFERENT WEARING COURSES WAS BUILT ON THE DOMESTIC AIRPORT OF STOCKHOLM DURING THE AUTUMN OF 1968, AND IT WAS TRAFFICKED BY AN AUTOPILOTED VEHICLE EQUIPPED WITH FOUR STUDDED TIRES. THE PURPOSE WAS TO DETERMINE THE WEAR OF DIFFERENT PAVEMENTS CAUSED BY STUDDED TIRES UNDER REALISTIC CONDITIONS AND TO ESTABLISH THE RELATION BETWEEN SUCH WEAR AND THE WEAR MEASURED IN SIMILAR EXPERIMENTS CONDUCTED IN THE ROAD MACHINE OF THE ROAD RESEARCH INSTITUTE. THE TESTS WERE CARRIED OUT DURING TWO WINTERS, COMPRISING IN ALL 100,000 CIRCUITS. THE WEAR WAS MEASURED BY GEOMETRIC PROFILING; AT THE SAME TIME, A METHOD BASED UPON THE MEASUREMENT OF RADIOACTIVE RADIATION ABSORPTION WAS TRIED. THE TESTS SHOWED THE SAME RANKING OF THE DIFFERENT PAVEMENTS ON THE TEST TRACK AS IN THE ROAD MACHINE. THEY ALSO SHOWED THAT WEAR RESISTANCE IS INCREASED BY ENRICHMENT OF THE LARGE AGGREGATE, ESPECIALLY IN THE SURFACE OF THE WEARING COURSE, BY INCREASED BINDER HARDNESS, AND BY TAR PRECOATING OF THE AGGREGATE AT HIGH TEMPERATURE. THE RESULTS ALSO REVEALED THAT THE MANUFACTURE OF WEARING COURSES WHICH INCLUDE ROLLED-IN COATED CHIPPINGS HAVE SOME CRITICAL STAGES WHICH CAN EASILY MAKE THE ADDITION OF THE CHIPPINGS USELESS. ONE SMALL SAMPLE FROM AN OLD PORTLAND CEMENT CONCRETE PAVEMENT WAS INCLUDED AND SHOWED COMPARATIVELY LITTLE WEAR. /AUTHOR/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 26 p.

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Filing Info

  • Accession Number: 00219009
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 28 1972 12:00AM