A TWENTY YEAR STUDY OF ASPHALT-RUBBER PAVEMENTS IN THE CITY OF PHOENIX, ARIZONA

The details of Asphalt-Rubber application on city streets, pioneered by the City of Phoenix since mid-1960, are outlined. There were some problems encountered in the early use of this material and they are noted. Various guidelines and specifications for the successful use of Asphalt-Rubber developed by the city during this period are summarized. Viscosity of asphalt cement with and without Asphalt-Rubber seal were determined and the importance of these results on the aging phenomena are discussed. A large number of the city's original streets with Asphalt-Rubber application were not evaluated, as these have been reconstructed. The remaining streets were inspected and the pavement condition for each of the streets was observed. Detailed observations of all the street pavements are summarized and the important findings from this 20-year historical survey of Asphalt-Rubber pavements are discussed. Conclusions on the use and advantages of Asphalt-Rubber as maintenance treatment of city streets are noted. In spite of the advantages and good engineering characteristics of Asphalt-Rubber chip seal, there was mounting public opposition to its continued use because loose chips caused damage to cars. The city therefore developed a special Asphalt-Rubber hot mix. This alternative surface treatment has proven to be as effective and reliable as Asphalt-Rubber chip seals. Details of the design of this mix and its advantages are discussed in depth.

  • Corporate Authors:

    Asphalt Rubber Producers Group

    3336 North 32nd Street, Suite 106
    Phoenix, AZ  United States  85018-6241
  • Authors:
    • Charania, E
    • Cano, J O
    • Schnormeier, R H
  • Publication Date: 1992

Media Info

  • Features: Appendices; Figures; Photos; References;
  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00622415
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 1992 12:00AM