Study on the Performances of Direct Coal Liquefaction Residue Modified Mixture Asphalt

[This draft version of "Study on the Performances of Direct Coal Liquefaction Residue Modified Mixture Asphalt" (DOI 10.1061/9780784413364.039) was erroneously included in the published proceedings.] The properties of two different asphalt mixtures blended with direct coal liquefaction residue (DCLR) and binder using two processing methods were studied in this paper. One processing method is to blend powdered DCLR and binder, and the other processing method is to blend molten DCLR and binder. The optimum content of DCLR was determined using the performance-graded (PG) system and furfural extract oil was used to improve the low-temperature properties of the blends. The performance of DCLR modified asphalt mixture with the two different blends was also studied in this paper. At first, the DCLR-13 was designed using the Marshall method. Then, the rutting test, the freeze-thaw splitting test, and the low-temperature bending test were conducted on the DCLR-13. Finally, the performances of DCLR-13 with the two different blends were evaluated and compared. The test results indicated that the performance of DCLR modified asphalt mixtures satisfied the specification. The processing method has an influence on the performance of DCLR modified asphalt mixtures.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 319-324
  • Monograph Title: Challenges and Advances in Sustainable Transportation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01527140
  • Record Type: Publication
  • ISBN: 9780784413364
  • Files: TRIS, ASCE
  • Created Date: May 15 2014 3:02PM