Evaluation of the Interaction Effects between Asphalt Binders and Fillers Using a Moisture Susceptibility Test (With Discussion)

Moisture damage of hot mix asphalt pavements is a problem encountered in almost every region of the United States. A new test method was developed employing a Dynamic Shear Rheometer (DSR) to identify asphalt binders that might contribute to moisture susceptibility of a mix. The new test method uses an aggregate type interface with asphalt binder in lieu of stainless steel, which is traditionally used in DSR testing. Interaction effects between the asphalt binders and fillers are investigated in this paper. The filler materials used were hydrated lime and silica. Comparisons between 0%, 5%, 10%, and 20% of each filler type were conducted to determine differences in G*/sin(δ) values obtained using a DSR with a water bath and air chamber. The evaluations were conducted on 21 binders of varying performance grades. Results indicated that there are significant differences between some asphalt binders and fillers implying that moisture susceptibility can be reduced or increased depending on the aggregate used in a mix and the new test procedure is sensitive to these changes.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02702932
• Authors:
  • Kvasnak, Andrea
  • Williams, R Christopher
• Discussers:
  • Ishai, Ilan
  • Fini, Eli
  • Little, Dallas
  • Dunning, Robert
  • Copeland, Audrey
• Conference:
  • 2007 Journal of the Association of Asphalt Paving Technologists: From the Proceedings of the Technical Sessions
  • Location: San Antonio TX, United States
  • Date: 2007-3-11 to 2007-3-14
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: CD-ROM; Figures; References; Tables;
• Pagination: pp 163-199
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Volume: 76
  • Publisher: Association of Asphalt Paving Technologists (AAPT)
  • ISSN: 0270-2932
  • Serial URL: https://www.asphalttechnology.org/site_page.cfm?pk_association_webpage_menu=9169&pk_association_webpage=19109

Subject/Index Terms

• TRT Terms: Aggregates; Bituminous binders; Calcium hydroxide; Fillers (Materials); Hot mix asphalt; Moisture content; Rheometers; Silica; Test procedures; Tests
• Uncontrolled Terms: Susceptibility
• Subject Areas: Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01080600
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 14 2007 11:59AM