Low Temperature Cracking Potential of Aged Asphalts Using Simulated Aging Techniques

The objective of this paper is to characterize low temperature properties of recycled asphalt pavements (RAP) binders and artificially-aged asphalt binders. The Rolling Thin Film Oven (RTFO) and Pressure Aging Vessel (PAV) were used to artificially age the asphalt binders with the binder undergoing up to three PAV aging cycles. Low temperature asphalt binder properties were investigated using the Asphalt Binder Cracking Device (ABCD). RAP binder specimens included a 50% RAP binder blend with a virgin PG 58-28 control binder. The ABCD determined the strain jump indicating the temperature where asphalt binder thermal cracking occurred. An average 5.9% difference in thermal cracking temperature was observed when comparing the control binder versus artificially-aged binders. Conclusions reached from this investigation are that RAP binder thermal cracking temperature and strain increases with additional amounts of RAP binder and RAP binder thermal cracking temperatures were similar to one or two PAV aging cycles.

• Record URL:
  • https://doi.org/10.1061/41186(421)410
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784411865
• Supplemental Notes:
  • Copyright © 2011 ASCE
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Colbert, Baron
  • Mills-Beale, Julian
  • You, Zhanping
• Conference:
  • 11th International Conference of Chinese Transportation Professionals (ICCTP)
  • Location: Nanjing , China
  • Date: 2011-8-14 to 2011-8-17
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 4113-4120
• Monograph Title: ICCTP 2011: Towards Sustainable Transportation Systems

Subject/Index Terms

• TRT Terms: Asphalt tests; Binders; Cracking; Recycled materials; Simulation
• Uncontrolled Terms: Pressure aging vessels; Rolling thin film oven test
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01453839
• Record Type: Publication
• ISBN: 9780784411865
• Files: TRIS, ASCE
• Created Date: Nov 15 2012 12:32PM