No-Tack Inlay on Milled Surface: Project Report

Details

• Creators:
  Cooley, L. Allen
• Subject/TRT Terms:
  • Paving
  • Resurfacing
  • Hot mix asphalt
  • Asphalt pavements
  • Recycled materials
  • Road construction
  • Hot mix asphalt (HMA)
  • Nashville (Tennessee)
  • Paving methods
  • Recycled asphalt pavement (RAP)
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Corporate Publisher:
  National Center for Asphalt Technology (U.S.)
• Abstract:
  This report documents observation of a construction project west of Nashville, Tennessee that did not use a tack coat during the placement of the hot mix asphalt (HMA). This observation took place on June 23, 1998. For this project, the existing pavement was milled approximately 50 mm (2 in) with the majority of the millings being used as recycled asphalt pavement (RAP) within the mixture being produced. Instead of sweeping the milled portion clean, the contractor lightly swept the milled surface, leaving a small amount of millings primarily in the bottom of the grooves. The new HMA mixture was then placed directly onto the milled surface with no tack coat. The premise of this methodology was that the grooved pavement in conjunction with the melting of the asphalt within the loose millings by the heat of the placed mixture would result in a bond between the placed mixture and underlying pavement, and a tack coat was not needed. Photos. 10p.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/13974/dot_13974_DS1.pdf
• File Type:
  [PDF - 1.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:17bc59125d37748b7c6a8d437447a86f32fc3e9a814206606918ba9c338232f123d81870e045d9e91dead06d984fd65d07530fe8e58ab792b36508b908a1651e