Evaluation of the Performance of Recycled Asphalt Sections in California Environmental Zones

The California Department of Transportation (Caltrans) initiated a study to evaluate the performance of in-service pavements in California, and hence the success of Caltrans’ pavement design and rehabilitation procedures. This effort also included the investigation of the field performance of special materials, such as Rubber Asphalt Concrete (RAC), Recycled Asphalt Pavement (RAP), Pavement Reinforcing Fabric (PRF) and many other special materials and treatments. As part of this study, sixty Recycled Asphalt Pavement (RAP) test sections located in three of California’s environmental zones – Desert (DS), Mountain (MT) and North Coast (NC) – along four routes (one in each of Caltrans’ Districts 1, 7, 9 and 11) were considered. Deflection, roughness, distress and cores/bores were among the data attributes collected from the test sections. Laboratory tests were also performed on the cores recovered from the field. Analysis was performed on the data collected from these sections to evaluate the performance of RAP in different environmental zones. This analysis was focused mainly on the actual field performance rather than laboratory predicted performance. In this analysis, the field performance was evaluated with respect to the in-situ structural capacity, distress condition, roughness condition and consistency of construction. This paper describes the observed field performance of the RAP sections, as well as the results of the evaluation analysis, and compares the performance of the RAP sections by environmental zone.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; References;
  • Pagination: 18p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01043886
  • Record Type: Publication
  • Report/Paper Numbers: 07-0876
  • Files: PRP, TRIS, TRB
  • Created Date: Feb 8 2007 5:27PM