Impedance-based detection of corrosion in post-tensioned cables : phase 2 extension of sensor development : [summary].
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Impedance-based detection of corrosion in post-tensioned cables : phase 2 extension of sensor development : [summary].



English
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Details:

  • Creators:
    Orazem, Mark
  • Corporate Creators:
    University of Florida
  • Subject/TRT Terms:
  • Publication/ Report Number:
    BDV31-977-19
  • Resource Type:
    Brief
  • Geographical Coverage:
    Florida
  • Corporate Publisher:
    Florida. Dept. of Transportation
  • Abstract:
    In post-tensioning construction, steel cables

    running through PVC pipes buried in concrete

    construction components are subjected to a high

    level of tension and then secured. This gives the

    component significant strength, allowing bridge

    spans to be longer, reducing the number of

    vertical supports, and saving construction dollars.

    Post-tensioning has been used in many significant

    bridges in Florida, including the Sunshine Skyway

    Bridge. In several of these bridges, inspections

    have revealed corrosion of post-tensioning cables,

    which could compromise the structure, but

    because of the placement of the cables, corrosion

    can be difficult to detect. Studies of this problem

    concluded that a nondestructive technique to test

    for corrosion and corrosion risk in post-tensioned

    bridge components was needed.

  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:
    Filetype[PDF-647.29 KB]

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