Effect of Mineral Filler on Damage Resistance Characteristics of Asphalt Binders (With Discussion)

That increased binder stiffness can result from adding mineral filler to an asphalt binder has been indicated in numerous studies. Rheological property stiffening ratio and change has attracted researchers to report data and model changes resulting from filler's physical, and sometimes, mineralogical nature. Limited information exists, however, on filler effect on binder damage resistance to permanent strain accumulation and fatigue. Filler content and type effects of mastics (filler-binder system) damage resistance were investigated in this study. There was testing of mastics and binders for filler type and content effect evaluation on mastic fatigue and rutting performance. The study included two binders and two fillers of different mineralogy, granite (acidic) and limestone (basic). The asphalt binder volume used two filler contents, 25% and 50%. It is evident that filler presence significantly increases binder fatigue life and complex shear modulus when compared to those of the base binders based of test results. Mastic fatigue life was also found to be significantly larger than that of binders. Fatigue resistance was found to be more positively effected by limestone filler than by granite filler. Three different temperatures, 52 degrees C, 58 degrees C, and 64 degrees C, were tested for creep and recovery measurements. In terms of total terminal strain and non-recoverable compliance, filler addition enhanced rutting resistance. In estimating mastic and asphalt mixture performance, binder-filler interactions need to be considered.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02702932
• Authors:
  • Faheem, Ahmed F
  • Wen, Haifang
  • Stephenson, Lawrence
  • Bahia, Hussain U
• Conference:
  • Asphalt Paving Technology 2008
  • Location: Philadelphia PA
  • Date: 2008-4-27 to 2008-4-30
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Print
• Features: CD-ROM; Figures; References; Tables;
• Pagination: pp 885-908
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Volume: 77
  • 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: Asphalt; Binders; Estimation theory; Fatigue (Mechanics); Granite; Limestone; Mastic asphalt; Mineral fillers; Rheological properties; Rutting; Stiffness
• Uncontrolled Terms: Damage resistance
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01131451
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 2009 8:32AM