CURRENT PRACTICE OF COLD IN-PLACE RECYCLING OF ASPHALT PAVEMENTS

As part of a study to develop standard design procedures and specifications for cold in-place recycling of asphalt pavements, a literature review and a survey of state and local highway agencies and contractors were performed. The results indicate a diversity of cold in-place recycling use, design, and construction. Cold in-place construction can be divided into three distinct types: (a) a stabilization process, (b) a single unit miller or mixer process, and (c) a process using full construction trains. Several promising recycling agents have been identified and some guidelines for compaction and curing have been developed. Specific mix design procedures and structural design show great variation among users, however, and no single method can be recommended. Cold in-place recycling construction involves milling or pulverizing the existing pavement, reduction in size, mixing, laydown, and compaction. Most agencies then apply a fog seal, surface treatment, or thin overlay as a wearing surface. Overall, cold in-place recycling has shown satisfactory performance and considerable cost savings over conventional overlays. Further evaluation of procedures, specifications, and performance is recommended, however, to standardize this practice.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1988/1178/1178-005.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CURRENT+PRACTICE+OF+COLD+IN-PLACE+RECYCLING+OF+ASPHALT+PAVEMENTS&author=L.+Wood&author=T.+White&author=T.+Nelson&publication_year=1988
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030904717X
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1178, Flexible Pavement Construction. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Wood, Leonard E
  • White, Thomas D
  • Nelson, Thomas B
• Publication Date: 1988

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 31-37
• Monograph Title: Flexible pavement construction
• Serial:
  • Transportation Research Record
  • Issue Number: 1178
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt pavements; Cold in-place recycling; Cold weather; Compaction; Concrete curing; Construction management; Cost effectiveness; Guidelines; Mix design; Performance evaluations; Recycling; Specifications; Structural design
• Subject Areas: Construction; Highways; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 00486158
• Record Type: Publication
• ISBN: 030904717X
• Files: TRIS, TRB, ATRI
• Created Date: Aug 31 1989 12:00AM