Details:

• Creators:
  Clark, Trenton M. ; Rorrer, Todd M. ; McGhee, Kevin K.

  Clark, Trenton M. ; Rorrer, Todd M. ; McGhee, Kevin K. Less -
• Corporate Creators:
  Virginia Center for Transportation Innovation and Research
• Corporate Contributors:
  Virginia. Dept. of Transportation
• Subject/TRT Terms:
  [+]

  Asphalt Concrete Bond Performance Bond Strength Bond Strength (Materials) Chemical Bond Milled Surfaces Non-tracking Tack Paint Seal Coats Surface Course (Pavements) Tack Tack Coat Tack Coats Trackless Tack
• Publication/ Report Number:
  VCTIR 12-R14
• Resource Type:
  Research Paper
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Center for Transportation Innovation and Research
• Abstract:
  The purpose of this study was to develop, demonstrate, and document laboratory procedures that could be used by the
  
  Virginia Department of Transportation (VDOT) to evaluate non-tracking tack coat materials. The procedures would be used to
  
  qualify candidate material formulations for field validation.
  
  The procedures were developed and were demonstrated through an evaluation of five “trackless” tacking materials and
  
  two conventional tacking materials. The evaluation demonstrated that the trackless materials outperformed the conventional
  
  materials in the laboratory tracking test and in the bond performance tests for tensile and shear strength.
  
  The study recommends that VDOT formalize the described laboratory procedures to produce a Virginia Test Method to
  
  qualify candidate non-tracking tack coat materials for field verification. It further recommends that VDOT formalize the field
  
  verification system and includes general direction on the elements to include in that process.
  
  This work is part of a program of research designed to support a move to performance-oriented specifications for the
  
  interlayer bond for pavement construction. The non-tracking tack coat materials investigated in this study are expected to
  
  facilitate the improved performance of this bond and, as a consequence, the pavement system as a whole. This work supports an
  
  anticipated incremental improvement to an annual asphalt concrete program that is worth between $200 million and $400
  
  million per year (not including new construction). When applied to investments on this scale, even nominal improvements
  
  easily translate into considerable savings.
  
  
• Format:
  PDF
• Funding:
  101477
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  [+]

  urn:sha256:34fc2ec9424aeb260250cb8e67e08435146695fe72c7d5ebdbda5d55c7a79380
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24554/dot_24554_DS1.pdf
• File Type:
  [PDF-391.12 KB]