PLACING AND COMPACTING THICK LIFTS OF HOT MIX ASPHALT PAVEMENT

This publication reviews tests that have been made to show the compaction that can be obtained in thick lifts, and summarizes current practice regarding maximum permitted thicknesses of lifts of Hot Mix Asphalt pavement. It concludes that thick lifts can be compacted more easily than thin lifts because they retain the heat longer and have more uniform temperature throughout the mat. The data clearly show that limitations on lift thickness based on density requirements are not necessary. Placing thick lifts is a little more difficult than placing normal lifts, but the benefits of longer life due to lower air voids and less grooving from traffic compaction will far outweigh the difficulties of placing thick lifts.

  • Supplemental Notes:
    • Information Series.
  • Corporate Authors:

    Virginia Department of Transportation

    Office of Public Affairs, 1221 East Broad Street
    Richmond, VA  United States  23219
  • Publication Date: 1986-3

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00722177
  • Record Type: Publication
  • Report/Paper Numbers: 21/86
  • Files: TRIS, STATEDOT
  • Created Date: Jun 24 1996 12:00AM