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dc.contributor.authorWheeler, Megan Carolineen_US
dc.date.accessioned2011-08-06T14:45:02Z
dc.date.available2011-08-06T14:45:02Z
dc.date.issued2003-12-09en_US
dc.identifier.otheretd-01132004-201727en_US
dc.identifier.urihttp://hdl.handle.net/10919/9687
dc.description.abstractThis study is an evaluation of epoxy coated reinforcing steel (ECR) and its ability to effectively provide corrosion protection in reinforced concrete highway bridge decks. An analysis was conducted on 10 bridge decks built in the state of Virginia between the years 1981 and 1995. A total of 141 cores containing either ECR or bare steel were evaluated. A chloride solution was applied to the surface on a weekly cycle (for a total duration of 3.06 years) and a nondestructive electrochemical testing was performed on each core on a monthly cycle. Cores were also inspected for surface cracks, the thermal properties of the epoxy coating, and the concrete conditions at bar depth. The concrete was tested for saturation percentages, diffusion coefficients, and chloride contents, while the epoxy was tested for its glass transition temperature, moisture content, and amount of surface cracking. The results indicate that the best predictor for estimating the times to corrosion initiation and cracking is the amount of chlorides present in the concrete encasing the ECR. The presence of chloride ions will have a determining effect on corrosion regardless of the epoxy coating condition. As a result, it is likely that ECR is not the solution to corrosion prevention and it is recommended that closer attention be given to improving concrete conditions that reduce the diffusion of chloride ions. The conclusion that ECR is an unreliable corrosion prevention method is in agreement with the results of previous studies.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartMeganETD.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectconcreteen_US
dc.subjectglass transition temperatureen_US
dc.subjectcorrosionen_US
dc.subjectbridge decksen_US
dc.subjectepoxy coated reinforcing steel (ECR)en_US
dc.titleParameters Influencing the Corrosion Protection Service Life of Epoxy Coated Reinforcing Steel in Virginia Bridge Decksen_US
dc.typeThesisen_US
dc.contributor.departmentCivil Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineCivil Engineeringen_US
dc.contributor.committeechairWeyers, Richard E.en_US
dc.contributor.committeememberAnderson-Cook, Christine M.en_US
dc.contributor.committeememberBrown, Michael C.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01132004-201727en_US
dc.date.sdate2004-01-13en_US
dc.date.rdate2004-01-22
dc.date.adate2004-01-22en_US


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