THE PREDICTION OF TYRE ABRASION AND TYRE-ROAD FRICTION FROM SURFACE TEXTURE MEASUREMENTS

It was predicted previously that for a given ruggedness (average absolute slope) a scale of texture will cause greater abrasion the finer it happens to be, provided it is not masked by a lubricant. The reason given was that as the scale becomes finer, the same amount of energy is being dissipated in an increasingly smaller volume of rubber. The temperature will rise and the rubber may melt since the generated heat is less able to escape. Tests seem to support the foregoing theory of abrasion since they indicate that increases in speed of sliding, increases in damping factor of rubber and increases in the fineness and in the ruggedness of road surface texture are all associated with increases in abrasion of the rubber. It is shown why an increase in average absolute slope (ruggedness) is associated with higher rates of abrasion. It can also be seen that sharp-unpolished-asperities will cause a different type of tearing or, abrasion or fatigue than blunt-polished-asperities. /TRRL/

  • Supplemental Notes:
    • Proceedings of Design and Construction of Flexible Pavements, Residential Course, Leura, N.S.W., 1978.
  • Corporate Authors:

    Australian Asphalt Pavement Association

    991 Rathdowne Street
    Carlton North, Victoria  Australia 
  • Authors:
    • Yandell, W O
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00194011
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS, ATRI
  • Created Date: May 26 1979 12:00AM