Characterizing Fundamental Rutting Property of Asphalt Concrete from Multiscale Simulative Tests using an Inverse Approach

Objectives: The proposed research will develop an innovative method to use Inverse Approach to characterize three fundamental properties (the elastic modulus, the yielding strength, and an internal loading transfer parameter to represent mastics-aggregate skeleton interaction). These three parameters represent the rutting resistances of asphalt so that different scales of simulative tests and SPT tests can have a common basis for comparison and evaluation purposes. Significance: Simulative tests have complicated contact and boundary conditions. It is hard to calculate fundamental material properties such as modulus and yielding strength from simulative tests. Nevertheless, there are about 1500 units of simulative testing devices in the world. A method to calculate fundamental material properties such as modulus and yielding strength will significantly enhance the capability of simulative testing and have important impacts on the paving industry by saving testing costs, better screening problematic mixes, and more accurately predicting mix performances. Potential Impacts on State of Practice: Due to the non-representative specimen stress-strain field of simple performance tests, the SPT test results have limitations in that models using SPT test results do not realistically predict the performance of asphalt pavement in the field. Simulative tests are traditionally used as a pass-fail test to evaluate asphalt mixes before they can be used for construction projects. If fundamental material properties can be calculated from simulative tests, the evaluations of mix designs can be integrated into pavement design by supplying the required parameters characterized from simulative tests for pavement design

• Supplemental Notes:
  • VTI$66,022/$66,022 PSUAlt$63,898/$63,979

Language

• English

Project

• Status: Active
• Funding: $259921
• Contract Numbers:

  69A3551847103

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Center for Integrated Asset Management for Multimodal Transportation Infrastructure Systems (CIAMTIS)

  Pennsylvania State University
  University Park, PA  United States  16802
• Project Managers:

  Donnell, Eric

• Performing Organizations:

  Virginia Tech Transportation Institute

  3500 Transportation Research Plaza
  Blacksburg, Virginia  United States  24061

  Pennsylvania State University, University Park

  Thomas D. Larson Pennsylvania Transportation Institute
  Research Office Building
  University Park, PA  United States  16802-4710
• Start Date: 20210303
• Expected Completion Date: 20230302
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt concrete pavements; Construction; Performance tests; Properties of materials; Rutting; Simulation
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01767106
• Record Type: Research project
• Source Agency: Center for Integrated Asset Management for Multimodal Transportation Infrastructure Systems (CIAMTIS)
• Contract Numbers: 69A3551847103
• Files: UTC, RIP
• Created Date: Mar 18 2021 12:15PM