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: Active
    • Funding: $212968
    • Contract Numbers:

      17CLSU08

    • 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  20590

      Transportation Consortium of South-Central States

      Louisiana State University
      Baton Rouge, LA  United States  70803
    • Project Managers:

      Hassan, Marwa

      Karaman, Ibrahim

    • Performing Organizations:

      Louisiana State University and A&M College

      202 Himes Hall
      Baton Rouge, LA  United States  70803

      Texas A&M Transportation Institute, College Station

      Texas A&M University System
      3135 TAMU
      College Station, TX  United States  77843-3135

      Louisiana 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: 0
    • USDOT Program: University Transportation Centers Program

    Subject/Index Terms

    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