Bridge Deck Service Life Prediction and Costs

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dc.contributorVirginia Techen
dc.contributorVirginia Transportation Research Councilen
dc.contributor.authorWilliamson, Gregoryen
dc.contributor.authorWeyers, Richard E.en
dc.contributor.authorBrown, Michael C.en
dc.contributor.authorSprinkel, Michael M.en
dc.contributor.departmentCivil and Environmental Engineeringen
dc.date.accessed2013-11-21en
dc.date.accessioned2014-03-19T18:30:14Zen
dc.date.available2014-03-19T18:30:14Zen
dc.date.issued2007-12-01en
dc.description.abstractThe service life of Virginia's concrete bridge decks is generally controlled by chloride-induced corrosion of the reinforcing steel as a result of the application of winter maintenance deicing salts. A chloride corrosion model accounting for the variable input parameters using Monte Carlo resampling was developed. The model was validated using condition surveys from 10 Virginia bridge decks built with bare steel. The influence of changes in the construction specifications of w/c = 0.47 and 0.45 and w/cm = 0.45 and a cover depth increase from 2 to 2.75 inches was determined. Decks built under the specification of w/cm = 0.45 (using slag or fly ash) and a 2.75 inch cover depth have a maintenance free service life of greater than 100 years, regardless of the type of reinforcing steel. Galvanized, MMFX-2, and stainless steel, in order of increasing reliability of a service life of greater than 100 years, will provide a redundant corrosion protection system. Life cycle cost analyses were conducted for polymer concrete and portland cement based overlays as maintenance activities. The most economical alternative is dependent on individual structure conditions. The study developed a model and computer software that can be used to determine the time to first repair and rehabilitation of individual bridge decks taking into account the time for corrosion initiation, time from initiation to cracking, and time for corrosion damage to propagate to a state requiring repair.en
dc.description.sponsorshipVirginia Department of Transportation 73186en
dc.format.extent77 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGregory Williamson, Richard E. Weyers, Michael C. Brown, and Michael M. Sprinkel. "Bridge Deck Service Life Prediction and Costs," Virginia Transportation Research Council 530 Edgemont Road Charlottesville, VA 22903, Report No. VTRC 08-CR4, Dec. 2007.en
dc.identifier.govdocVTRC 08-CR4en
dc.identifier.urihttp://hdl.handle.net/10919/46671en
dc.identifier.urlhttp://www.virginiadot.org/vtrc/main/online_reports/pdf/08-cr4.pdfen
dc.language.isoen_USen
dc.publisherVirginia Center for Transportation Innovation and Researchen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectDecksen
dc.subjectLifeen
dc.subjectCorrosionen
dc.subjectReinforcementen
dc.subjectConcreteen
dc.subjectBridgesen
dc.titleBridge Deck Service Life Prediction and Costsen
dc.typeTechnical reporten
dc.type.dcmitypeTexten

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