Variability of In-Line RAP Crushing vs. Pre-Screened RAP Stockpiles

The Louisiana Department of Transportation and Development (DOTD) allows contractors to utilize Reclaimed Asphalt Pavement (RAP) in various asphalt mixtures throughout the state. The standard specifications for roads and bridges added the following statement regarding the storing of RAP, “Keep reclaimed asphalt pavement separate from other materials at the plant in such a manner that will allow for Department inspection and acceptance. Keep stockpiles uniform and free of soil, debris, foreign matter and other contaminants. Screen or crush RAP, prior to use, to pass a 1-inch sieve.” The wording of this statement has led contractors to stockpile RAP in two different manners; contractors crush and screen the RAP prior to stockpiling, or they store the RAP then crush and screen it on the cold feed line. Louisiana Transportation Research Center (LTRC) was requested to evaluate the variability of RAP properties with respect to these storage methods.

• Record URL:
  • https://www.ltrc.lsu.edu/pdf/2019/19-01TA-B.pdf
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/61985
• Supplemental Notes:
  • Cover title: Variability of In-Line RAP Crushing vs. Pre-Screened Stockpiles.
• Corporate Authors:

  Louisiana Transportation Research Center

  Baton Rouge, LA  United States 

  Louisiana Department of Transportation and Development

  Baton Rouge, LA  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Mayeux, Corey
  • Salari, Saman
  • Cooper III, Samuel
• Publication Date: 2019-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Assistance Final Report
• Features: Figures; Tables;
• Pagination: 19p

Subject/Index Terms

• TRT Terms: Crushing; Reclaimed asphalt pavements; Stockpiling; Storage facilities
• Geographic Terms: Louisiana
• Subject Areas: Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01836190
• Record Type: Publication
• Report/Paper Numbers: FHWA/LA.17/19-01TA-B, LTRC Project Number: 19-01TA-B
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Feb 22 2022 10:27AM