Evaluation & Mitigation Methods for the Prevention of Cement Concrete Deterioration due to Pyrrhotite: Part 2
Sulfide-bearing minerals, particularly pyrrhotite when present in aggregates used in Portland cement concrete, can oxidize and trigger premature deterioration. There is a critical need to investigate concrete mixture design parameters and treatment strategies that can mitigate these reactions and reduce the risk and progression of premature concrete distress. OBJECTIVE: The primary objective of this project is to evaluate how concrete mixture design strategies and selected treatments can mitigate degradation mechanisms and slow the rate of damage in concrete affected by oxidation of pyrrhotite-bearing aggregates.
Language
- English
Project
- Status: Active
- Funding: $204,889.00
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Contract Numbers:
129275
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Sponsor Organizations:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Managing Organizations:
Massachusetts Department of Transportation
10 Park Plaza
Boston, MA United States 02116 -
Project Managers:
Sanders MS, Austin
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Performing Organizations:
University of Connecticut, Storrs
Connecticut Transportation Institute
270 Middle Turnpike, Unit 5202
Storrs, CT United States 06269-5202 -
Principal Investigators:
Wille, Kay
Mahoney, James
Frame, Lesley
- Start Date: 20251212
- Expected Completion Date: 20261231
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Admixtures; Deterioration; Mix design; Portland cement concrete; Sulfides
- Subject Areas: Design; Highways; Maintenance and Preservation; Materials; Pavements;
Filing Info
- Accession Number: 01992508
- Record Type: Research project
- Source Agency: Massachusetts Department of Transportation
- Contract Numbers: 129275
- Files: RIP, STATEDOT
- Created Date: Jun 16 2026 4:43PM