DEVELOPMENT OF IMPROVED MIX AND CONSTRUCTION GUIDELINES FOR RUBBER-MODIFIED ASPHALT PAVEMENTS

Rubber-modified asphalt pavement mixtures have been used in Sweden and the United States since the 1970s. In these applications ground, recycled tire particles (1/4 in. minus) are added to a gap-graded aggregate and then mixed with hot asphalt cement. The benefits of adding rubber to the mix include increased skid resistance under icy conditions, improved flexibility and crack resistance, elimination of a solid waste, and reduced traffic noise. The major disadvantage of these rubber-modified mixtures is their high initial cost compared with conventional asphaltic concrete pavements. One such rubber-modified asphalt mixture used in the United States is described. The mix ingredients and typical properties are first presented. The requirements for adding and controlling one additional ingredient and for producing an unusual aggregate gradation (gap-graded aggregate) have resulted in construction problems on some projects. These problems can be avoided by proper specifications, controls, and inspection. In the last section of the paper guidelines for use of rubber-modified asphalt mixtures in cold, moderate, and hot environments are presented.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1988/1171/1171-014.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=DEVELOPMENT+OF+IMPROVED+MIX+AND+CONSTRUCTION+GUIDELINES+FOR+RUBBER-MODIFIED+ASPHALT+PAVEMENTS&author=H.+Takallou&author=R.+Hicks&publication_year=1988
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309047102
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1171, Asphalt Materials and Mixtures.Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Takallou, H B
  • Hicks, R G
• Publication Date: 1988

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 113-120
• Monograph Title: Asphalt materials and mixtures
• Serial:
  • Transportation Research Record
  • Issue Number: 1171
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt pavements; Construction management; Costs; Gap grading; Guidelines; Noise control; Recycling; Skid resistance; Tires
• Uncontrolled Terms: Noise reduction
• Subject Areas: Construction; Finance; Highways; Materials; Vehicles and Equipment; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00483630
• Record Type: Publication
• ISBN: 0309047102
• Files: TRIS, TRB, ATRI
• Created Date: May 31 1989 12:00AM