Simple and Rapid Tests for Assessing Quality and Consistency of Reclaimed Asphalt Pavement (RAP) for Recycled Asphalt Mixture Applications

The objective of this innovation is to develop a practical methodology comprising of simple and rapid tests to assess the quality and consistency of reclaimed asphalt pavement (RAP) for use in recycled asphalt mixture applications. The current practice for assessing the RAP quality requires determining the binder content and aggregate gradation of the RAP and the performance grade (PG) of the extracted RAP binder, especially for asphalt mixtures with high RAP contents. However, this practice is not practical for routine use, as it requires asphalt extraction, recovery, and PG testing, which are very time-consuming or require specialty equipment that is not widely available to the DOTs. Because of these practicality limitations, the current practice cannot be used to assess the consistency of RAP materials throughout the stockpile, which is necessary to ensure satisfactory performance of RAP asphalt mixtures in the field. The proposed innovation aims to characterize the quality of RAP without the need for solvent extraction, recovery, and PG testing of the RAP binder and to address the consistency of material quality throughout the RAP stockpile. This is achieved  through simple and rapid tests using equipment that is readily available in the vast majority of asphalt laboratories.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5461

Language

• English

Project

• Status: Active
• Funding: $140000
• Contract Numbers:

  Project 20-30, IDEA 245

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Safety Innovations Deserving Exploratory Analysis (IDEA)

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Managing Organizations:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Zelinski, Patrick

• Performing Organizations:
  ,   Germany 

  Virginia Department of Transportation

  1401 East Broad Street
  Richmond, VA  United States  23219
• Principal Investigators:

  Boz, Ilker

• Start Date: 20230701
• Expected Completion Date: 20250630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Accelerated tests; Innovation; Quality control; Reclaimed asphalt pavements; Recycled materials; Test procedures
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01875931
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 20-30, IDEA 245
• Files: TRB, RIP
• Created Date: Mar 20 2023 5:54PM