Support XRF Determination of Tire Rubber Content in Asphalt Binders
Tire rubber (TR) is required in certain asphalt binders, e.g., AC-205TR, used for chip seal construction. These binders are specified and used in several districts across the state. Current Texas Department of Transportation (TxDOT) Standard Specification Item 300, Asphalts, Oils, and Emulsions, includes using test procedure Tex-533-C, Determining Polymer Additive Percentages in Polymer Modified Asphalt Cements. This test procedure has been only performed in the TxDOT Materials and Tests Division (MTD). In a previous project the research team provided a portable X-ray fluorescence (XRF) device and training to three districts (including generating calibration curves to support determining TR content) for them to be able to conduct this testing at the district or field level. Under the previous project, the research team also revised Tex-553-C and initiated a round robin testing plan to determine the accuracy of the tire rubber determination. In this project, the research team will provide the three districts with technical support in XRF TR determination for the 2024 seal coat season.
- Record URL:
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Supplemental Notes:
- Continuation of TxDOT Research Project 0-7168.
Language
- English
Project
- Status: Active
- Funding: $60206
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Contract Numbers:
0-7168-01
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Sponsor Organizations:
Texas Department of Transportation
125 E. 11th Street
Austin, TX United States 78701-2483 -
Managing Organizations:
Texas Department of Transportation
125 E. 11th Street
Austin, TX United States 78701-2483 -
Project Managers:
Jensen, Darrin
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Performing Organizations:
Center for Transportation Research
3925 W. Braker Lane
Austin, TX United States 78759 -
Principal Investigators:
Bhasin, Amit
- Start Date: 20240401
- Expected Completion Date: 20240831
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Binder content; Chip seals; Quantitative analysis; Rubber; Seal coats; Test procedures; Tires; X ray fluorescence
- Subject Areas: Construction; Highways; Materials; Pavements;
Filing Info
- Accession Number: 01916533
- Record Type: Research project
- Source Agency: Texas Department of Transportation
- Contract Numbers: 0-7168-01
- Files: RIP, STATEDOT
- Created Date: Apr 23 2024 3:50PM