Brief details are given of "Delugrip", a new material developed jointly by Dunlop Ltd and the University of Birmingham, which has high skid resistance properties. This material contains commonly occurring natural rock aggregates and conventional bituminous binders, and, by dense mixing, aims at obtaining minimum voids. Different mix designs are utilized according to the grading of the aggregates used. Because traditional materials and mixers are employed in its manufacture, the cost of delugrip is similar to that of traditional materials. If account is taken of its lower binder content and of the ability to do away with coated chippings, Delugrip could even have a cost advantage over manufacture, the cost of Delugrip is similar to that of coefficient measurements performed on the A4 after two and a half year service have shown high performance, reduction in friction and noise, and increase in speed and skid resistance duration. /TRRL/

  • Availability:
  • Corporate Authors:

    Municipal Engineering Publications, Limited

    178-202 Portland Street
    London W1N 6NH,   England 
  • Authors:
    • Morrell, B
  • Publication Date: 1976-5-21

Media Info

  • Pagination: p. 791
  • Serial:
    • Municipal Engineering
    • Volume: 153
    • Issue Number: 21
    • Publisher: Municipal Engineering Publications, Limited
    • ISSN: 0263-788X

Subject/Index Terms

Filing Info

  • Accession Number: 00138954
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 17 1976 12:00AM