Feasibility Study for Detection and Quantification of Corrosion in Bridge Barrier Rails

dc.contributor.author Margetan, Frank
dc.contributor.author Jensen, Terrance
dc.contributor.author Wendt, Scott
dc.contributor.author Gray, Joseph
dc.contributor.author Eisenmann, David
dc.contributor.author Eisenmann, David
dc.contributor.author Margetan, Frank
dc.contributor.author Lo, Chester
dc.contributor.author Nakagawa, Norio
dc.contributor.author Brasche, Lisa
dc.contributor.department Center for Nondestructive Evaluation
dc.date 2018-06-07T01:42:01.000
dc.date.accessioned 2020-06-30T01:26:20Z
dc.date.available 2020-06-30T01:26:20Z
dc.date.embargo 2013-05-07
dc.date.issued 2013-04-01
dc.description.abstract <p>Technical challenges exist with infrastructure that can be addressed by nondestructive evaluation (NDE) methods, such as detecting corrosion damage to reinforcing steel that anchor concrete bridge railings to bridge road decks. Moisture and chloride ions reach the anchors along the cold joint between the rails and deck, causing corrosion that weakens the anchors and ultimately the barriers.</p> <p>The Center for Nondestructive Evaluation at Iowa State University has experience in development of measurement techniques and new sensors using a variety of interrogating energies. This research evaluated feasibility of three technologies—x-ray radiation, ground-penetrating radar (GPR), and magnetic flux leakage (MFL)—for detection and quantification of corrosion of embedded reinforcing steel.</p> <p>Controlled samples containing pristine reinforcing steel with and without epoxy and reinforcing steel with 25 percent and 50 percent section reduction were embedded in concrete at 2.5 in. deep for laboratory evaluation. Two of the techniques, GPR and MFL, were used in a limited field test on the Iowa Highway 210 Bridge over Interstate 35 in Story County.</p> <p>The methods provide useful and complementary information. GPR provides a rapid approach to identify reinforcing steel that has anomalous responses. MFL provides similar detection responses but could be optimized to provide more quantitative correlation to actual condition. Full implementation could use either GPR or MFL methods to identify areas of concern, followed by radiography to give a visual image of the actual condition, providing the final guidance for maintenance actions.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/cnde_reports/1/
dc.identifier.articleid 1000
dc.identifier.contextkey 4115360
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cnde_reports/1
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/15763
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/cnde_reports/1/2013_JensenT_FeasibilityStudyDetection.pdf|||Fri Jan 14 17:28:19 UTC 2022
dc.subject.keywords concrete bridge barriers
dc.subject.keywords corrosion quantification
dc.subject.keywords giant magnetoresistance sensors
dc.subject.keywords ground-penetrating radar
dc.subject.keywords magnetic flux leakage
dc.subject.keywords nondestructive testing
dc.subject.keywords radiography
dc.subject.keywords reinforcing steel evaluation
dc.subject.keywords steel corrosion
dc.subject.keywords InTrans
dc.title Feasibility Study for Detection and Quantification of Corrosion in Bridge Barrier Rails
dc.type article
dc.type.genre report
dspace.entity.type Publication
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relation.isOrgUnitOfPublication f2b877c3-5654-4c6a-9e64-6c944f9f02b6
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