ME Guide: E* Model from Single Point Tests Results, Phase II: Relation Between E* Parameters and CT Index

The overall objective of this research series is to develop a relation between material tests that are currently being used by Utah Department of Transportation (UDOT) (Hamburg WTD at high temperatures, bending beam rheometer for mixtures at low temperatures, and the IDEAL CT at intermediate temperatures) and the dynamic modulus, E*, master curve values used as input to the pavement design software (Level 1 in AASHTOWare Pavement ME®). It is expected that such relation will allow for a selection of an E* master curve that is directly related to the asphalt mixture used in the pavement. Having this capability will directly relate materials properties to pavement design and allow for life-cycle cost analysis. To accomplish this objective a multi-phase approach is proposed; Phase I was used to prove the feasibility of this approach; Phase II is proposed as verification and development of relations. The specific objectives of Phase II (for this specific contract) are: (1) Validate the theoretical and experimental results obtained as part of Phase I using asphalt mixtures with different properties (i.e., different binder grade, different RAP content). (2) Develop a relation between the dynamic master curve parameters and the IDEAL CT data. This includes the evaluation of different temperatures. (3) Simulate dynamic modulus master curves obtained from the different mixtures tested during Phase I and II using IDEAL CT data. Then validate this simulation by comparing the predicted values with actual dynamic modulus data. (4) Propose a framework to incorporate other tests currently used for mixture testing (i.e., Hamburg WTD and BBR).

• Supplemental Notes:
  • The Mountains Plains Consortium will include additional funding in the amount of $40,000 (on separate contract with the University of Utah) that will allow for additional laboratory help at the University of Utah to complete this work.

Language

• English

Project

• Status: Active
• Funding: $50000
• Contract Numbers:

  23-8431

  UT22.104

• Sponsor Organizations:

  Utah Department of Transportation

  Research and Innovation Division
  Salt Lake City, UT  United States  84114
• Managing Organizations:

  Utah Department of Transportation

  Research and Innovation Division
  Salt Lake City, UT  United States  84114
• Project Managers:

  Stevens, David

• Performing Organizations:

  University of Utah

  Department of Civil and Environmental Engineering
  110 Central Campus Drive Suite 2000
  Salt Lake City, UT  United States  84112
• Principal Investigators:

  Romero, Pedro

• Start Date: 20221101
• Expected Completion Date: 20240630
• Actual Completion Date: 0
• USDOT Program: Pavements and Materials

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Dynamic modulus of elasticity; Life cycle costing; Materials tests; Mechanistic-empirical pavement design
• Identifier Terms: AASHTOWare Pavement ME Design (Software); Utah Department of Transportation
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01895576
• Record Type: Research project
• Source Agency: Utah Department of Transportation
• Contract Numbers: 23-8431, UT22.104
• Files: RIP, STATEDOT
• Created Date: Oct 6 2023 5:13PM