The author gives an outline of a new method of texturing concrete road surfaces by cutting grooves whilst the concrete is still plastic. Attention is drawn to the need for good drainage between the tyre and road surface in order to maintain good resistance to skidding at higher speeds, particularly with tyres that have worn to near the legal limit of 1 mm of tread depth. Photographs illustrate the difference in contact between tyre and surface for grooved and ungrooved perspex plates. Reference is made to the development of and trials with a special grooving machine which has been developed by the cement and concrete association, and the need is stressed for random groove spacing to avoid the generation of a single audible frequency which would be heard as a whistle or whine. The quality of ride with this textured concrete is similar to that of other comparable road surfaces, and the better drainage reduces the splash and spray generated by vehicles. The advantages of obtaining a texture which has a life approaching that of the road structure itself without additional cost are emphasized. /TRRL/

  • Availability:
  • Corporate Authors:

    New Zealand Portland Cement Association

    Securities House, 126 The Terrace, P.O. Box 3644
    Wellington,   New Zealand 
  • Authors:
    • Weaver, J
  • Publication Date: 1974-6

Media Info

  • Features: Photos;
  • Pagination: p. 30-31
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00096357
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Oct 18 1975 12:00AM