A STUDY OF DIFFERENT TYPES OF ROAD MARKINGS RELATING TO RETRO-REFLECTIVITY AND WEAR

UNDERSOEKNING AV OLIKA VAEGMAERKERINGSTYPER MED AVSEENDE PAA RETROREFLEXION OCH SLITAGE

During a period of two years the specific luminance and durability of thermoplastic road marking materials have been studied. The contents of 18 different compounds have been varied systematically as to: a) the proportion of reflective glass and plastic bead, b) the make of the glass beads, and c) the size of the glass beads. According to the results a mixture of 20% by weight of glass beads and 5% by volume of plastic beads is suitable for roads with no stationary lighting. On roads with stationary lighting, on the other hand, the durability should be considered as more important than the specific luminance. A suitable mixture of glass and plastic beads is 10% by weight and 5% by volume, respectively. Furthermore, the study showed that glass beads in a thermoplastic compound should have a fraction of more than 100 um and that the specific luminance of the beads made by potters is much higher than of beads manufactured in East Germany.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03476049
• Corporate Authors:

  Swedish National Road and Traffic Research Institute

  Drottning Kristinas Vaeg 25
  S-11428 Stockholm,   Sweden 
• Authors:
  • Lundkvist, S O
• Publication Date: 1988

Language

• Swedish

Media Info

• Pagination: 14 p.
• Serial:
  • VTI MEDDELANDE
  • Issue Number: 517
  • Publisher: Swedish National Road and Transport Research Institute (VTI)
  • ISSN: 0347-6049

Subject/Index Terms

• TRT Terms: Durability; Glass beads; Luminance; Reflectivity; Road markings; Tests; Thermoplastic materials; Wear
• Subject Areas: Materials; Operations and Traffic Management;

Filing Info

• Accession Number: 00498231
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM