Cold Central Plant Recycling (CCPR) - National Road Research Alliance (NRRA)

State and local agencies are increasingly using recycled asphalt pavement (RAP) material to construct structural layers of asphalt pavements for low-volume roadways. These layers use no virgin aggregate (or a small fractions, if any). These pavements are typically constructed using cold, in-place recycling (CIR) methods, and the top 3-4 inches of the existing pavement is milled, mixed with new asphalt binder, then directly paved and compacted. However, an alternative method using stockpiled RAP, instead of in-place RAP, is referred to as cold central plant recycling (CCPR). The research objectives are to explore the performance of MnROAD test cells constructed using two different CCPR methods (foam and emulsion) with 2 different asphalt based surfaces (HMA overlay and double chip seal). The project will also include (A) analysis of laboratory and field tests to characterize the pavement (and supporting tests), (B) studies of construction practices and costs associated with CCPR, including a survey, and (C) the production of task memos describing task work on CCPR construction, costs, and performance. The research products will be a final report and three technical briefs that provide: (1) documentation of the MnROAD experience with CCPR; (2) analysis of the performance of CCPR pavements and materials; (3) discussion of the cost-effectiveness of CCPR (including mix designs); (4) details on the CCPR construction state-of-the-practice; (5) discussion of agency concerns in developing a CCPR specification. It is hoped that the research products will help NRRA member agencies develop their own CCPR specification.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    National Road Research Alliance pooled fund

    MnDOT Office of Materials and Road Research
    1400 Gervais Ave.
    Maplewood, MN  United States  55109
  • Managing Organizations:

    Minnesota Department of Transportation

    395 John Ireland Boulevard
    St Paul, MN  United States  55155
  • Project Managers:

    Fick, Debra

  • Performing Organizations:

    American Engineering Testing

    St. Paul, Minnesota  United States 
  • Principal Investigators:

    Rettner, Dave

  • Start Date: 20180206
  • Expected Completion Date: 20200831
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01660846
  • Record Type: Research project
  • Source Agency: Minnesota Department of Transportation
  • Contract Numbers: 1030151
  • Files: RiP, STATEDOT
  • Created Date: Feb 21 2018 2:45PM