FLEXIBLE PAVEMENT REHABILITATION USING ASPHALT-RUBBER COMBINATIONS: PROGRESS REPORT

Several flexible pavement rehabilitation strategies incorporating asphalt-rubber were used experimentally on a project in northeastern California in the fall of 1983. Included were rubberized dense-graded asphalt concrete (AC) overlays containing a binder then being marketed by the Arizona Refining Company, PlusRide dense-graded AC overlays, and four thicknesses of conventional dense-graded AC overlay for comparative evaluations. Some of the rubberized dense-graded AC overlays were placed on a stress-absorbing membrane (SAM) interlayer. In addition, two sections of double SAM and one section of conventional (single) SAM were placed. Distress began to develop in the conventional dense-graded AC within one year in the form of raveling, rutting, and cracking. This distress has become more extensive and more severe during subsequent years. Distress has also developed in the other overlays and surface treatments. To date, however, all the asphalt-rubber combinations are performing equal to or better than equivalent or greater thicknesses of conventional dense-graded asphalt concrete.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1988/1196/1196-021.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=FLEXIBLE+PAVEMENT+REHABILITATION+USING+ASPHALT-RUBBER+COMBINATIONS%3A+PROGRESS+REPORT&author=R.+Doty&publication_year=1988
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1196, Pavement Evaluation and Rehabilitation. 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:
  • Doty, Robert N
• Publication Date: 1988

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 212-223
• Monograph Title: Pavement evaluation and rehabilitation
• Serial:
  • Transportation Research Record
  • Issue Number: 1196
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt rubber; Defects; Driver rehabilitation; Energy absorbing materials; Flexible pavements; Overlays (Pavements); Pavement distress; Pavements; Performance evaluations; Stresses; Test sections; Thickness
• Uncontrolled Terms: Rehabilitation; Stress absorbing membrane interlayers
• Old TRIS Terms: Dense graded
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00490161
• Record Type: Publication
• ISBN: 0309047714
• Files: TRIS, TRB, ATRI
• Created Date: Dec 31 1990 12:00AM