CHARACTERIZATION OF CRUMB RUBBER-MODIFIED BINDER USING STRATEGIC HIGHWAY RESEARCH PROGRAM TECHNOLOGY

The objective of the study was to characterize several different types of crumb rubber-modified binders and to develop information relating their properties. Different concentrations, gradations, and asphalt cement sources were evaluated to determine what effect these had on the properties of the modified binders. The asphalt cement and rubber were reacted at 177 deg C (350 deg F) until the stiffness had reached a maximum level. Tests were performed to evaluate both the reaction properties and the final properties of the binders. The concentration was found to have the largest effect on the final properties of the binders. The asphalt cements used in the study had little effect on the rubber-asphalt cement reaction. Strategic Highway Research Program (SHRP) binder properties indicated that the asphalt rubber binder performed better than an AC-20 asphalt cement used for comparison. Conventional asphalt tests were also performed on the mature binders. The softening point was found to produce results similar to those of the SHRP tests and may offer a method for field verification for asphalt rubber binders.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1995/1488/1488-003.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CHARACTERIZATION+OF+CRUMB+RUBBER-MODIFIED+BINDER+USING+STRATEGIC+HIGHWAY+RESEARCH+PROGRAM+TECHNOLOGY&author=D.+Hanson&author=G.+Duncan&publication_year=1995
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1488, Unmodified and Modified Asphalt Binders. 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:
  • Hanson, Douglas I
  • Duncan, Gregory M
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 21-31
• Monograph Title: Unmodified and modified asphalt binders
• Serial:
  • Transportation Research Record
  • Issue Number: 1488
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Aggregate gradation; Asphalt cement; Asphalt rubber; Binders; Concentration (Chemistry); Crumb rubber; Performance evaluations; Properties of materials; Softening point
• Identifier Terms: Strategic Highway Research Program
• Uncontrolled Terms: Concentration; Sources
• Old TRIS Terms: Gradation
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00714790
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Nov 29 1995 12:00AM