Rheological evaluation of warm mix and anti-stripping additives modified performance grade binders

The effects of a warm mix asphalt (WMA) additive, Sasobit®, and a liquid anti-stripping agent, AD-here® HP Plus, on the rheological properties of a selected performance grade binder (PG 64-22) as per Superpave® specifications, are evaluated in this study. 1.5% was found to be the optimum dosage (mass) of Sasobit®, which was expected to reducing the mixing temperatures by 9°C and the high PG temperatures by 4.5°C. To some extent, Sasobit® was also found to decrease the fatigue resistance and low temperature resistance of the base binder. A reduced rolling thin film oven (RTFO) temperature was furthermore expected to exhibit significant reduction in the rut resistance of the WMA. Anti-stripping agent was anticipated to increase low temperature resistance of the WMA, while anti-stripping agent was expected to reduce the rutting resistance. Enhancements to rheological database and help in implementing WMA mixes in Oklahoma and elsewhere are expected from the findings of this study.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Authors:
  • Hossain, Zahid
  • Zaman, Musharraf
  • Wasiuddin, Nazimuddin M
  • Sneed, Justin
  • O'Rear, Edgar A
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 875-895
• Serial:
  • Road Materials and Pavement Design
  • Volume: 12
  • Issue Number: 4
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Binders; Evaluation; Pavement performance; Stripping (Pavements); Thin films
• Identifier Terms: Sasobit
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01362884
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 16 2012 10:14AM