RHEOLOGICAL RESPONSE OF ASPHALTS

The rheological response of asphalt cements to shearing stresses is presented. The behavioral characteristics were measured using a rotating coaxial cylinder viscometer. Little or no development of theory is presented. The viscoelastic portion of deformation is discussed in terms of the creep function. Plastic deformation is described using the definitions of apparent and plastic viscosities. Curves showing the effects of temperature, stress level and penetration on these two major components of strain are presented and discussed. Analysis indicated that plastic deformation is the predominante component of strain and, thus, should be considered and incorporated in the design of flexible pavements.

• Record URL:
  • https://doi.org/10.13023/KTC.RR.1972.333
• Corporate Authors:

  Kentucky Department of Transportation

  Bureau of Highways
  Frankfort, KY  United States  40601

  Federal Highway Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Allen, D L
• Publication Date: 1972-8

Media Info

• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Asphalt cement; Creep; Deformation curve; Design; Flexible pavements; Pendulum tests; Plastic deformation; Rheology; Shear stress; Temperature; Viscoelasticity; Viscometers
• Uncontrolled Terms: Design criteria
• Old TRIS Terms: Response
• Subject Areas: Design; Highways; Materials;

Filing Info

• Accession Number: 00151738
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA/RD/M-0346 Final Rpt., RR-333
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Apr 27 1977 12:00AM