Shear Genius: Asphalt Industry Improves Its Binder Testing

In this article the authors explain improvements in rheological testing of flow and deformation of materials in the asphalt industry. The first users of rheometers for stresses and strains in their flow and deformation were in the food industry to test items for their consistency. These devices, called Dynamic Shear Rheometers (DSR), were a great aid to the transportation industry that had previously depended upon unreliable viscosity tests that could not provide information at low temperatures. DSR first began to be used in asphalt applications when, in the 1980s, Congress allocated $50 million to the Strategic Highway Research Program (SHRP). In order to cope with the different torque needed for asphalt applications, the DSRs used in these applications now use smaller plates, despite these plates causing higher variability between testing results.

  • Availability:
  • Authors:
    • Anderson, Michael
    • Beavin, Michael T
  • Publication Date: 2007-3


  • English

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Filing Info

  • Accession Number: 01047157
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS, ATRI
  • Created Date: Apr 5 2007 12:45PM