Inter-Laboratory Study for the Indirect Tensile Test at High Temperature and Rapid Rutting Test
In 2020, the Virginia Transportation Research Council (VTRC) initiated a two-phase research project entitled “Feasibility of Using Monotonic Loading-based Tests to Evaluate Rutting Performance of Asphalt Mixtures” with an objective to explore the use of monotonic loading-based tests as screening tools for assessing the rutting potential of asphalt mixtures in Virginia. As a result of the findings from Phase I of the study, the implementation of the indirect tensile test at high temperature (IDT-HT) and the Ideal Rutting Test (IDEAL-RT) was recommended in the Balanced Mix Design process through a hierarchical approach. To that extent, the IDT-HT test is now included in VDOT’s 2023 Balanced Mix Design provisional specification for informational purposes only alongside the asphalt pavement analyzer (APA) rut test. The repeatability (single-operator precision) and reproducibility (multi-laboratory precision) of a test method are quantitative expressions of variability that represent the two extremes of test method precision, and must be established if a test method is to be incorporated in quality assurance specifications. Thus, an inter-laboratory study (ILS) must be conducted to determine precision estimates of a test for proper quality measurement practices. The objective of this research is to determine and develop precision estimates and statements for the rutting indices calculated from the IDT-HT test and IDEAL-RT through performing an ILS.
Language
- English
Project
- Status: Active
- Funding: $249311
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Contract Numbers:
121388
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Sponsor Organizations:
Virginia Transportation Research Council
530 Edgemont Road
Charlottesville, VA United States 22903 -
Performing Organizations:
Virginia Transportation Research Council
530 Edgemont Road
Charlottesville, VA United States 22903 -
Principal Investigators:
Boz, Ilker
Diefenderfer, Stacey
Habbouche, Jhony
- Start Date: 20220502
- Expected Completion Date: 20231130
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Asphalt mixtures; Pavement performance; Rutting; Tensile strength; Test procedures
- Geographic Terms: Virginia
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01843031
- Record Type: Research project
- Source Agency: Virginia Department of Transportation
- Contract Numbers: 121388
- Files: RIP, STATEDOT
- Created Date: Apr 23 2022 8:44AM