Fatigue Behavior of Asphalt Containing Reclaimed Asphalt Pavement

This study examines the effects of loading frequency, strain level and Reclaimed Asphalt Pavement (RAP) on fatigue lives of asphalt mixtures and binders. In addition, the relationship between the fatigue lives of asphalt mixtures and binders is determined. Beam fatigue tests have been conducted to determine the fatigue behavior of two asphalt mixtures: one with 35% RAP and the other without RAP. To evaluate binder’s fatigue behavior, binders were extracted and recovered from these two mixes. Next fatigue lives of these two binders were determined using time sweep and Linear Amplitude Sweep (LAS) tests. Fatigue lives of binders from time sweep and LAS tests show a good correlation with the mixture’s fatigue life from beam fatigue test. An increase in loading frequency results in an increase in the fatigue lives of asphalt mixtures as well as binders. Results show that presence of RAP in mixture causes a decrease in the mixture’s fatigue life. However, the presence of RAP causes an increase in the fatigue life of binder.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFK30 Characteristics of Nonasphalt Components of Asphalt Paving Mixtures. Alternate title: Fatigue Behavior of Asphalt Containing Reclaimed Asphalt Pavements.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Mannan, Umme Amina
  • Islam, Md Rashadul
  • Tarefder, Rafiqul A
• Conference:
  • Transportation Research Board 94th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2015-1-11 to 2015-1-15
• Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 16p
• Monograph Title: TRB 94th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Bituminous binders; Fatigue (Mechanics); Fatigue tests; Reclaimed asphalt pavements
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01553010
• Record Type: Publication
• Report/Paper Numbers: 15-5828
• Files: TRIS, TRB, ATRI
• Created Date: Feb 9 2015 4:31PM