2500 Asphalt Binder Test (ABT) for Quick Performance Grade of Asphalt Binder

The proposed study will evaluate the continuous performance grades (PGs) of commonly used neat and polymer-modified binders in Oklahoma from different sources using the Asphalt Binder Test (ABT) device. The results of the ABT test will be verified with the traditional American Association of State Highway Transportation Officials (AASHTO) M 320 specification to ensure confidence. Also, this study will evaluate binders with Engineered Crumb Rubber (ECR), and US Polyco Rapid Digestion Process (RDP) rubber modifiers using the ABT and AASHTO M 320 specification. Based on the test results, the ANN model will be retrained following a physics-informed process to predict the continuous PG of the crumb-rubber modified binders. In addition, this study will evaluate the properties of the RAP binder blends. The continuous PG grades of binders blended with RAP extracted binders will be tested using the ABT device. The maximum percentage of RAP binder for blending will be determined in consultation with the Oklahoma Department of Transportation (ODOT) and the consultant. The test data will be used to retrain the ANN model for better prediction of the PGs of reclaimed asphalt pavement (RAP) binder blends. In addition, field cores will be collected from asphalt pavements exhibiting premature distresses and failures with the help of ODOT. The extracted binder will be tested, and the results included in the ABT database. The effect of binder extraction using the automatic extractor and a relatively new and rapid method using Dichloromethane (DCM) on the continuous PGs will be studied selectively. Based on the review of literature, state DOT practices, test results, and consultant’s experience, preliminary guidelines will be developed for the implementation of the ABT test as a screening and/or QC tool.

Language

• English

Project

• Status: Active
• Funding: $191600
• Contract Numbers:

  2500

  SPRY-0010(095)RS

• Sponsor Organizations:

  Oklahoma Department of Transportation

  200 NE 21st Street
  Oklahoma City, OK  United States  73105
• Managing Organizations:

  Oklahoma Department of Transportation

  200 NE 21st Street
  Oklahoma City, OK  United States  73105
• Project Managers:

  Rice, Jerry

  Vivanco Sala, David

• Performing Organizations:

  University of Oklahoma, Norman

  School of Civil Engineering and Environmental Science
  202 West Boyd Street, Room 334
  Norman, OK  United States  73019
• Principal Investigators:

  Ashik Ali, Syed

• Start Date: 20241001
• Expected Completion Date: 20260930
• Actual Completion Date: 0
• USDOT Program: Transportation, Planning, Research, and Development

Subject/Index Terms

• TRT Terms: Asphalt pavements; Asphalt tests; Bituminous binders; Performance tests; Quality control
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01932075
• Record Type: Research project
• Source Agency: Oklahoma Department of Transportation
• Contract Numbers: 2500, SPRY-0010(095)RS
• Files: RIP, STATEDOT
• Created Date: Sep 26 2024 4:16PM