COAL-BASED SYNTHETIC ASPHALT: OXIDATIVE AGING AND TESTING OF COMPACTED BITUMINOUS MIXTURES

An asphalt binder material, functionally equivalent to petroleum asphalt, has been produced by catalytic hydroliquefaction of coal. The synthetic coal-based asphalt, with approximately 3 percent polymer additive, meets all ASTM and AASHTO specifications for asphalt paving cements, with the exception of the optional thin-film oven test weight loss specification. Age hardening of the coal-based asphalt is primarily due to air oxidation rather than volatilization or polymerization. Marshall stability and immersion-compression testing show that the polymer-modified, coal-based asphalt produces compacted mixtures with good moisture resistance and high compressive strength compared with those of control samples prepared with petroleum asphalt of the same viscosity grade.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1988/1171/1171-007.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=COAL-BASED+SYNTHETIC+ASPHALT%3A+OXIDATIVE+AGING+AND+TESTING+OF+COMPACTED+BITUMINOUS+MIXTURES&author=J.+Guin&author=C.+Curtis&author=J.+Kang&author=S.+Park&author=S.+Gollakota&author=A.+Tarrer&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:
  • Guin, James A
  • Curtis, Christine W
  • Kang, Jyh Huei
  • Park, Sang J
  • Gollakota, Sai V
  • Tarrer, A Ray
• Publication Date: 1988

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 51-58
• 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: Age hardening; Binders; Bituminous mixtures; Coal; Compression tests; Compressive strength; Marshall test; Oxidation; Polymer asphalt
• Old TRIS Terms: Hydroliquefaction; Immersion compression test; Marshall stability marshall stability & flow test flow
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00483623
• Record Type: Publication
• ISBN: 0309047102
• Files: TRIS, TRB, ATRI
• Created Date: May 31 1989 12:00AM