Use of linear amplitude sweep test as a damage tolerance or fracture test to determine the optimum content of asphalt rejuvenator

A procedure based on the linear amplitude sweep (LAS) test has been developed to determine the optimum rejuvenator content for restoring the properties of aged asphalt binders. The LAS test was employed to assess the damage tolerance, fatigue resistance, and fracture behavior of rejuvenated aged binders. In case of fracture analysis, a crack-based indicator to govern the stable crack propagation was defined to characterize fracture resistance of asphalt binders. While rejuvenators improved all of these properties, higher contents were required to restore the cracking behavior of the original binder. The linear relationship between the integrated damage-fatigue-fracture indicator and rejuvenator content was used to determine the optimum content. Unlike the similar permissible range based on restoration of the low and high-temperature performance, the LAS-based approach demonstrated superior performance of the aromatic extract rejuvenator over the waste cooking oil at higher contents.

• Record URL:
  https://doi.org/10.1016/j.conbuildmat.2021.123983
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0950061821017438
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2021 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Asadi, Babak
  • Tabatabaee, Nader
  • Hajj, Ramez
• Publication Date: 2021-9-20

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 123983
• Serial:
  • Construction and Building Materials
  • Volume: 300
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Asphalt additives; Bituminous binders; Engineering tolerance; Fracture properties; Rejuvenators
• Identifier Terms: Linear Amplitude Sweep Test
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01780019
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 27 2021 2:54PM