Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete

Recent improvements in asphalt emulsion chemistry that enable better aggregate coating, shorter curing times, and the elimination of solvents have substantially increased the applicability of mixtures produced by cold in-place recycling (CIR), cold central-plant recycling (CCPR), and full-depth reclamation (FDR). The objective of this research was to determine relevant properties of CIR, CCPR, and FDR materials with emulsified or foamed asphalt recycling/stabilizing agents for input into pavement structural design programs. The project developed a small-scale testing procedure that permits the measurement of the dynamic modulus and repeated load permanent deformation characteristics of field-produced and cured asphalt-stabilized, cold-recycled mixtures. These properties were determined for cold-recycled materials sampled from field projects across the United States. Suggested Level 3 modulus inputs were developed by the research team for use in structural design and analysis programs. Finally, structural analyses were conducted with these inputs in Pavement ME Design that demonstrated the sensitivity of the test data to the different stabilizing agents used in the various field projects.

• Record URL:
  http://www.trb.org/Main/Blurbs/176641.aspx
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309446716
• Authors:
  • Schwartz, Charles W
  • Diefenderfer, Brian K
  • Bowers, Benjamin F
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 83p
• Serial:
  • NCHRP Research Report
  • Issue Number: 863
  • Publisher: Transportation Research Board
  • ISSN: 2572-3766

Subject/Index Terms

• TRT Terms: Asphalt emulsions; Asphalt mixtures; Cold in-place recycling; Emulsified asphalt; Full-depth reclamation; Pavement design; Properties of materials; Recycled materials; Structural analysis
• Uncontrolled Terms: Cold central-plant recycling
• Subject Areas: Construction; Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01658099
• Record Type: Publication
• ISBN: 9780309446716
• Report/Paper Numbers: Project 09-51
• Files: TRIS, TRB, ATRI
• Created Date: Jan 26 2018 11:45AM