Integrity and effectiveness of standard preformed membranes placed on concrete bridge decks

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dc.contributor.authorGalagedera, Nandadeva Lalithen
dc.contributor.committeechairWeyers, Richard E.en
dc.contributor.committeememberAl-Qadi, Imadeddin L.en
dc.contributor.committeememberDrew, Donald R.en
dc.contributor.committeememberWalker, Richard D.en
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T21:34:13Zen
dc.date.adate2009-04-18en
dc.date.available2014-03-14T21:34:13Zen
dc.date.issued1991-09-09en
dc.date.rdate2009-04-18en
dc.date.sdate2009-04-18en
dc.description.abstractWaterproofing membranes have been used on bridge decks for almost three decades in order to prevent chloride ingress into concrete. However, the performance of these membranes have yet to be adequately evaluated. Therefore, this research was carried out primarily to evaluate the integrity and effectiveness of standard preformed membranes placed on concrete bridge decks. The actual conditions of a bridge deck were simulated in the laboratory using scaled-down reinforced concrete specimens. Forty-eight outdoor and twelve indoor specimens were cast. Three types of standard preformed membranes (Bithuthene 5000, Royston lOA, and Protecto Wrap M400-A), punctured with holes of various sizes and frequencies per unit area, were placed on the specimens. All of the specimens were overlaid with 2.5 inches of hot-mix asphalt, except four outdoor (control) specimens and three indoor specimens.en
dc.description.degreeMaster of Scienceen
dc.format.extentxi, 136 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04182009-041358en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04182009-041358/en
dc.identifier.urihttp://hdl.handle.net/10919/42152en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1991.G343.pdfen
dc.relation.isformatofOCLC# 25140600en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1991.G343en
dc.subject.lcshConcrete bridgesen
dc.titleIntegrity and effectiveness of standard preformed membranes placed on concrete bridge decksen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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