Field tack coat evaluator (ATACKer)

Details

• Creators:
  M. Shane Buchanan ; Mark E. Woods
• Corporate Creators:
  Mississippi Transportation Research Center ; United States. Federal Highway Administration ; Mississippi State University. Construction Materials Research Center
• Subject/TRT Terms:
  • Physical properties
  • Pavement maintenance
• Publication/ Report Number:
  FHWA/MS-DOT-RD-04-168
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Mississippi State University. Dept. of Civil Engineering
• Abstract:
  Asphalt tack coats are applied during pavement construction to ensure bond between pavement layers, thus providing a more durable pavement. A prototype tack coat evaluation device (TCED) was developed to evaluate the tensile and torque-shear strength of tack coat materials. Three emulsions (SS-1, CSS-1, and CRS-2) and one asphalt binder (PG 67-22), commonly used as tack coats, were evaluated using the TCED at various application temperatures, application rates, dilutions, and set times. A laboratory bond interface strength device (LBISD) was developed to assess interface shear strength of laboratory prepared specimens. Mass loss testing was performed to evaluate moisture evaporation and visual breaking properties of emulsions. Study results indicate application rate, tack coat, and emulsion set time significantly affect TCED strength. Application rate also affected evaporation rate of emulsions.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16185/dot_16185_DS1.pdf
• File Type:
  [PDF - 3.14 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1154ad9d20ed4ef22246d9998415ac19dd9fc77450feb0d5a88a007680ea1a4ab7c233cbda94d661c65b1e43b62fc42daf0f526c90f2efb1e9a45875cd4b3bcf