Performance of Reclaimed Asphalt Pavement on Unpaved Roads

As the volume of traffic on unpaved roads in Wyoming increases with increased drilling activities, dust loss and surface distresses will continue to rise. It would make sense to pave some of these roads, but many counties cannot afford these expensive operations especially when future traffic volumes on these roads are unknown. An alternative option needs to be explored that will reduce dust loss and associated surface distresses. Recycled or reclaimed asphalt pavement (RAP) has been used as a surfacing additive on Wyoming’s unpaved roads, streets, and alleys for many years. Recent state legislation compensates the Wyoming Department of Transportation (WYDOT) for RAP donated to Wyoming counties. WYDOT and local agencies need to evaluate the performance of blended RAP and virgin aggregate as a surfacing material for unpaved roads. Therefore, it is the intent of this research project to determine the feasibility of using RAP blends as surfacing material with a particular emphasis on its ability to reduce dust loss while maintaining road serviceability. Section 1 of this report describes the reasons this project was undertaken and how it will satisfy the problems laid out. Section 2 describes the use of reclaimed and RAP. It also describes issues involving gravel roads and dust control. Section 3 describes the procedures used to meet this study’s objectives, including descriptions of the test sites and construction procedures. Section 4 describes the performance of the test sections, focusing on fugitive dust emissions and roadway surface conditions as evaluated by the U.S. Army Corps of Engineers’ (USACE) unsurfaced road condition index (URCI) evaluation procedure (Eaton and Beaucham 1992). Section 5 compares the cost effectiveness of using RAP as a surfacing additive for unpaved roads with RAP’s use in hot mix asphalt pavement and as road base. Section 6 briefly summarizes the discussions presented in sections 3, 4, and 5, presenting an overall view of this study’s findings. Section 7 provides advice as to how the findings of this study should be implemented. The appendices provide additional information and data that support the descriptions and conclusions presented in the body of this report, along with a list of abbreviations used in this report and their meanings.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=742
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/26087
• Supplemental Notes:
  • This research was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University of Wyoming, Laramie

  Wyoming Technology Transfer Center
  1000 East University Avenue, Department 3295
  Laramie, WY  United States  82071

  Wyoming Department of Transportation

  5300 Bishop Boulevard
  Cheyenne, WY  United States  82009-3340

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Koch, Scott
  • Huntington, George
  • Ksaibati, Khaled
  • 0000-0002-9241-1792
• Publication Date: 2013-5

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 170p

Subject/Index Terms

• TRT Terms: Base course (Pavements); Cost effectiveness; Dust control; Gravel roads; Paving; Reclaimed asphalt pavements; Recycled materials; Surface course (Pavements); Unpaved roads
• Geographic Terms: Wyoming
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01482297
• Record Type: Publication
• Files: UTC, NTL, TRIS, RITA, ATRI, USDOT, STATEDOT
• Created Date: May 24 2013 9:00AM