Beam End Repair for Prestressed Concrete Beams – Phase II
The ultimate goal of the proposed research project is to provide cost-effective/high-performance cementitious materials to repair the deteriorated ends of precast prestressed concrete beams (PPCB). Based on the outcome of the small- and large-scale investigations performed as part of the Phase I of this project, ultra-high performance and high-early strength concrete mixtures were developed and tested to repair the beam ends in the laboratory setting. In the proposed Phase II of this project, the developed patching materials will be applied to a bridge structure identified by the Iowa Department of Transportation (DOT)’s Bridges and Structures Bureau. This candidate bridge, which is located in Fort Dodge, has a large number of beams in many differing states of deterioration. Thus, it would be an appropriate bridge to apply and evaluate the performance of the identified patching materials in a real field setting. The scope of work for the proposed project involves both short- and long-term investigations. The short-term investigations will primarily cover the practical aspects and considerations that must be figured out to successfully apply the patches in the field. On the other hand, the long-term investigations will closely monitor the integrity and overall condition state of the repaired beam ends over time. For this purpose, a dense array of instrumentation will be utilized, while regular inspections will be conducted in parallel. The outcome is expected to identify the patching materials, procedures, and practices that have the highest promise of success to address the long-standing issue of deterioration of beam ends.
Language
- English
Project
- Status: Active
- Funding: $141,866.00
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Contract Numbers:
TR-802
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Sponsor Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Managing Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Project Managers:
Goetz, Vanessa
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Performing Organizations:
Institute for Transportation
2711 South Loop Drive, Suite 4700
Ames, Iowa United States 50010-8664 -
Principal Investigators:
Shafei, Behrouz
- Start Date: 20220301
- Expected Completion Date: 20250228
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Admixtures; Beams; Bridge members; Prestressed concrete; Repairing; Ultra high performance concrete
- Geographic Terms: Iowa
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;
Filing Info
- Accession Number: 01945645
- Record Type: Research project
- Source Agency: Iowa Department of Transportation
- Contract Numbers: TR-802
- Files: RIP, STATEDOT
- Created Date: Feb 12 2025 6:12PM