0-6744 : new HMA shear resistance and rutting test for Texas mixes.

Details

• Creators:
  Faruk, Abu ; Lee, Sang Ick ; Scullion, Tom
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Hot mix paving mixtures
  • Shear strength
  • Rutting
  • Asphalt mixtures
  • Field tests
  • Laboratory tests
  • Failure
• Publication/ Report Number:
  0-6744
• Resource Type:
  Brief
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Abstract:
  Traditionally run at one test temperature (122°F), the ; Hamburg wheel tracking test (HWTT) (Figure 1) has a ; proven history of successfully identifying and screening ; hot-mix asphalt (HMA) mixes that are prone to rutting ; and/or susceptible to moisture damage (stripping). ; However, with the record summer temperatures of ; recent years, several premature shear and rutting ; failures have occurred in the field with HMA mixes that ; had passed the HWTT in the laboratory. Most of these ; field failures occurred in high-shear-stress ; environments, particularly in areas having: ;  Slow-moving (accelerating/decelerating) traffic at ; controlled intersections. ;  Stop-go traffic. ;  Elevated temperatures. ;  Heavy/high traffic loading. ;  Lower-performance asphalt-binder grades.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28774/dot_28774_DS1.pdf
• File Type:
  [PDF - 504.70 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:15f799f4d0bd2571ed75cb3de9e2c18069bc03dbde99a339ecbbc9809f62c4d6