Self-healing microcapsules as concrete aggregates for corrosion inhibition in reinforced concrete
Reinforced Concrete (RC) structures are vital to the US’s infrastructure due to their high durability and superior mechanic performance when used as prime materials for bridges, superstructures and other civil engineering applications. Unfortunately, RC elements deteriorate rapidly when exposed to aggressive or corrosive environments. The use of self-healing corrosion inhibiting solutions provides a technology capable of influencing surface properties and indirectly the transport properties, the rebar corrosion rate, and the mechanism of reaction at the steel/concrete interface. Single or double walled self-healing microcapsules are materials that can be used to control and mitigate damage evolution processes in electrochemical systems such as reinforced concrete systems. The capsules house an anodic or cathodic corrosion inhibitor agent such as calcium nitrate. The advantage of these microcapsules is that they can be added during the mixing process or following the drying process in concrete structures and work on preventing corrosion with no need for maintenance or repair. This work aims to characterize and develop microcapsules formed through the concrete mixing process. The integration of such materials will enhance the durability and extend the useful life by controlling the corrosion precursors and the corrosion process during the damage evolution process.
Language
- English
Project
- Status: Completed
- Funding: $212968
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Contract Numbers:
17CLSU08
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Sponsor Organizations:
Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Managing Organizations:
Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590Transportation Consortium of South-Central States
Louisiana State University
Baton Rouge, LA United States 70803 -
Project Managers:
Hassan, Marwa
Karaman, Ibrahim
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Performing Organizations:
Louisiana State University and A&M College
202 Himes Hall
Baton Rouge, LA United States 70803Texas A&M Transportation Institute, College Station
Texas A&M University System
3135 TAMU
College Station, TX United States 77843-3135Louisiana Transportation Research Center
4101 Gourrier Avenue
Baton Rouge, LA United States 70808 -
Principal Investigators:
Castaneda, Homero
Hassan, Marwa
Radovic, Miladin
- Start Date: 20170508
- Expected Completion Date: 20181108
- Actual Completion Date: 20181108
- USDOT Program: University Transportation Centers Program
Subject/Index Terms
- TRT Terms: Corrosion protection; Corrosion resistant materials; Durability; Reinforced concrete; Service life
- Subject Areas: Bridges and other structures; Environment; Highways; Materials; Pavements;
Filing Info
- Accession Number: 01634812
- Record Type: Research project
- Source Agency: Transportation Consortium of South-Central States
- Contract Numbers: 17CLSU08
- Files: UTC, RiP
- Created Date: May 14 2017 10:37AM