Characterizing Temperature Susceptibility of Asphalt Binders Using Activation Energy for Flow

The temperature-viscosity relationships for twenty two neat and modified asphalt binders were evaluated using conventional tests (CT) such as penetration, kinematic and absolute viscosities, and ring and ball softening point; rotational viscometer (RV); and dynamic shear rheometer (DSR). The temperature ranged from 25 to 135 °C, 100 to 185 °C, and 7 to 82 °C for conventional, RV, and DSR tests, respectively. Results from several binders studies have revealed that binders having similar penetration, viscosity and performance grade (PG) could show dissimilar rheological behaviors. Hence, there is a need to fully characterize asphalt binders to capture their rheology over a wide range of temperatures and loading frequencies. The activation energy (AE) concept was utilized in this study to characterize the temperature susceptibility of the asphalt binders. Correlations between AE and binder rheological properties (e.g., G*/sinδ and G* sinδ) were evaluated. In addition, a relationship between AE and useful temperature range (UTR) determined from the performance grades (PG) was developed. The advantages of characterizing the relative temperature susceptibility of the binders using AE are discussed. Finally, discussion on mixing and compaction temperatures, especially for polymer modified binders, by using AE is also included in this paper.

• Record URL:
  • https://doi.org/10.1061/41167(398)48
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784411674
• Supplemental Notes:
  • Copyright © 2011 ASCE
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Haider, Syed Waqar
  • Mirza, M. Waseem
  • Thottempudi, Ashvini
  • Bari, Javed
  • Baladi, Gilbert Y.
• Conference:
  • First Congress of Transportation and Development Institute (TDI)
  • Location: Chicago IL, United States
  • Date: 2011-3-13 to 2011-3-16
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Monograph Title: Transportation and Development Institute Congress 2011 : Integrated Transportation and Development for a Better Tomorrow

Subject/Index Terms

• TRT Terms: Activation analysis; Binder content; Bituminous binders; Compaction; Laboratory tests; Mixing; Performance measurement; Polymer asphalt; Polymers; Rheological properties; Rheometers; Shear modulus; Thermal properties; Viscoelasticity; Viscometers; Viscosity
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01347213
• Record Type: Publication
• ISBN: 9780784411674
• Files: TRIS, ASCE
• Created Date: Aug 8 2011 2:09PM