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Initiation and propagation of corrosion in dry-cast reinforced concrete ring specimens

The corrosion propagation stage of D-CRP (types F and C) was tested under
immersion in water, high humidity, and covered with wet sand. The half-cell potential,
linear polarization test, and electrochemical impedance spectroscopy measurements were
performed. Selected specimens were terminated after 300 days of exposure and visually
inspected. Based on corrosion potential measurements obtained during the corrosion
propagation observation, and calculated corrosion rate based on LPR measurements: all
specimens were actively corroding. Additionally, EIS-Rc values were calculated for FS,
CS and CH specimens. The Rc_EIS were generally greater than Rc_LPR values. EIS
spectra for CI and FI specimens usually included mass transport limitations, as these
specimens were immersed. Both type of specimens immersed in water (FI and CI), appeared to have higher corrosion rate based on LPR-Rc. However, upon autopsy
it was revealed that a more modest amount of corrosion occurred on the reinforcing steel
of FI and CI terminated specimens. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2014. / FAU Electronic Theses and Dissertations Collection

Identiferoai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_13696
ContributorsSeo, Bongjoon (author), Presuel-Moreno, Francisco (Thesis advisor), Florida Atlantic University (Degree grantor), College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
PublisherFlorida Atlantic University
Source SetsFlorida Atlantic University
LanguageEnglish
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation, Text
Format138 p., application/pdf
RightsCopyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder., http://rightsstatements.org/vocab/InC/1.0/

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