USE OF RUBBER MODIFIED ASPHALT FOR SNOW AND ICE CONTROL. PROCEEDINGS OF STRATEGIC HIGHWAY RESEARCH PROGRAM AND TRAFFIC SAFETY ON TWO CONTINENTS , GOTHENBURG, SWEDEN, 27-29 SEPTEMBER, 1989. HIGHWAY OPERATIONS. CONCRETE AND STRUCTURES

Rubber-modified asphalt pavements have been used in Sweden and the United States since the late 1960's. Rubber-modified asphalt concrete consists of ground recycled tire rubber particles 6.4mm (1/4in. minus) added to a gap graded aggregate and then mixed with hot asphalt cement. This paving system distributed under the trade names "Skega Asphalt", "Rubit" or "Rubtop" in Scandinavia and "PlusRide" in the United States, was found to provide a new form of wintertime ice control because of the increased flexibility and the action of protruding rubber particles. Based on a review of several case histories presented herein, the resultant paving mixture appears to have the following important characteristics for cold regions applications: (1) improved resistance to load induced tensile cracking and low temperature thermal contracting; (2) improved skid resistance under ice conditions; (3) good resistance to studded tires and/or chains; and (4) reduced tire noise levels. Observations of the skid reduction benefits under icy road conditions have been made with a British Pendulum Tester and a vehicle equipped with a Tapley Brake Meter in the United States. Tests by Alaska Department of Transportation and Public Facilities indicate that significant reductions in city road stopping distances nearly always resulted from the use of the rubber modified asphalt paving system. For 21 testing dates over three winters, stopping distances were reduced by an average of 25 percent. The effectiveness of rubber modified asphalt concrete ("Rubit") has been investigated by Swedish road authorities in several field investigations. The field observations indicated the accidents related to surface frost have been completely eliminated in the areas with rubber modified asphalt pavement.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03476030
• Corporate Authors:

  Swedish National Road and Traffic Research Institute

  Drottning Kristinas Vaeg 25
  S-11428 Stockholm,   Sweden 
• Authors:
  • Takallou, H B
  • Hicks, R G
  • Takallou, M B
• Publication Date: 1990

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 49-68
• Serial:
  • VTI Rapport
  • Volume: 349A
  • Issue Number: 349A
  • Publisher: Swedish National Road and Transport Research Institute (VTI)
  • ISSN: 0347-6030

Subject/Index Terms

• TRT Terms: Asphalt cement; Asphalt pavements; Fracture mechanics; Frigid regions; Recycled materials; Rubberized bitumen; Skid resistance; Snow and ice control
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00493950
• Record Type: Publication
• Source Agency: Swedish National Road and Traffic Research Institute
• Report/Paper Numbers: 352A, HS-040 865
• Files: TRIS
• Created Date: Apr 30 1990 12:00AM