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

Orazem, Mark; University of Florida

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

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

2015-08-01
By Orazem, Mark

English

Details You May Also Like

Details:

Creators:

Orazem, Mark
Corporate Creators:

University of Florida
Subject/TRT Terms:

[+]

Bridge Cables Bridges Corrosion Posttensioning Sensors Spectroscopy Tendons (Materials)
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):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:29d4b37e1129bd569593f89bb50472b252b576622d3c7f5216885fb766360c96
Download URL:

https://rosap.ntl.bts.gov/view/dot/28122/dot_28122_DS1.pdf
File Type:

[PDF-647.29 KB]