TRC2401: Evaluation of Alkali-Silica-Reaction (ASR) Potential for Aggregate Sources in Arkansas
New test methods have been developed to determine the susceptibility of aggregates to alkali-silica reactions (ASR) and the alkali threshold of aggregate combinations. This project will examine the ASR susceptibility of aggregates, determine the alkali threshold of common aggregate combinations, and develop a mix design analysis tool to evaluate the ASR susceptibility of concrete mix designs. Samples of every aggregate approved for concrete production on the Qualified Products List (QPL) will be collected and tested using the Turner-Fairbank Highway Research Center ASR Test (T-FAST) method. T-FAST results will be utilized to select common aggregate combinations for Alkali Threshold Test (ATT) testing. A program will be written to analyze the alkalinity load of concrete mix designs and compare it to the Alkalinity threshold of aggregate combinations.
Language
- English
Project
- Status: Active
- Funding: $261500
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Sponsor Organizations:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590Arkansas Department of Transportation
P.O. Box 2261
Little Rock, AR United States 72203 -
Managing Organizations:
Arkansas Department of Transportation
P.O. Box 2261
Little Rock, AR United States 72203 -
Project Managers:
Elia, Hala
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Performing Organizations:
Arkansas Department of Transportation
P.O. Box 2261
Little Rock, AR United States 72203 -
Principal Investigators:
Rice, Lakisha
- Start Date: 20240101
- Expected Completion Date: 20251231
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Admixtures; Aggregates; Aggregates by source; Alkali silica reactions; Mix design
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;
Filing Info
- Accession Number: 01929216
- Record Type: Research project
- Source Agency: Arkansas Department of Transportation
- Files: RIP, STATEDOT
- Created Date: Aug 29 2024 12:16PM