SURFACE GAINS

This article assesses the benefits of thin road surfacing materials, and examines their likely future developments. When they began to be used for UK highway maintenance in the early 1990s, they represented the most significant advance in road construction technology since 1945. However, their emergence coincided with a severe reduction in new road construction and a more difficult financial environment. As a result of the move away from approval of road surfacing by the Highways Agency (HA) to the newly devised Highways Authorities Product Approval Scheme (HAPAS), new surfacing products are now independently assessed on merit. They are judged against a schedule of requirements formulated by the HA, the County Surveyors' Society (CSS), and others. Some requirements, like texture and skid resistance, are considered essential, while others, like noise reduction, are voluntary. Approval for most surfacing products is expected some time in 2000. Meanwhile, thin surfacings have proved valuable, and continued to become more popular; both contractors and specifiers recognise their appeal. However, the increased demand that they have created for high-PSV aggregates has caused concern. One possible solution is offered by RMC Aggregates, whose thinner surfacing, Viatex, can be laid on a Viabase course not using high-PSV aggregate.

  • Availability:
  • Corporate Authors:

    Hemming Group, Limited

    32 Vauxhall Bridge Road
    London,   United Kingdom  SW1V 2SS
  • Authors:
    • LEMON, G
  • Publication Date: 2000-5-18

Language

  • English

Media Info

  • Pagination: p. 14,16-7
  • Serial:
    • SURVEYOR
    • Volume: 187
    • Issue Number: 5582
    • Publisher: Hemming Group, Limited
    • ISSN: 0039-6303

Subject/Index Terms

Filing Info

  • Accession Number: 00796547
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 2 2000 12:00AM