CREATION OF AN ODOT SPECIFICATION FOR PATCHING OR OVERLAY OF BRIDGE DECKS (FHWA-OK-08-09 2184)

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dc.contributor.sponsorOklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation
dc.creatorRamseyer, Chris C.
dc.creatorMyers, Daniel S.
dc.date.accessioned2018-04-20T22:47:29Z
dc.date.available2018-04-20T22:47:29Z
dc.date.issued2009-9
dc.description.abstractBridge deck cracking is a huge problem in the United States, and various agencies have sponsored research endeavoring to determine the underlying problems. A number of causes have been identified, including thermal movement, plastic shrinkage, and early age settlement, as well as a number of other issues. Polymer fibers are a possible solution to many of the causes of bridge deck cracking: they have been shown to help early age properties like shrinkage and movement, and as a bonus, fibers improve post-cracking behavior. More understanding of the benefits and uses of polymer fibers in concrete is needed. This study researched the properties of four polymer fibers; two of the fibers were macrofibers, and two were microfibers. Each fiber was tested at several dosage rates to identify optimum dosage levels. Early age shrinkage, long term shrinkage, compressive strength, and tensile strength were investigated. Macrofibers and microfibers were found to have different impacts on concrete behavior, with different optimal dosage rates. Microfibers greatly dried out the concrete mixture, hindering workability. However, the microfibers substantially reduced plastic shrinkage and improved concrete strength at early age. Macrofibers, while not hindering workability, did not provide benefits as great as the microfibers to the concrete strength.
dc.description.peerreviewNo
dc.description.versionFinal Report, October 2004-October 2008
dc.format.extent98 pages
dc.format.extent5,525,064 bytes
dc.format.mediumapplication.pdf
dc.identifier.govdocFHWA-OK-08-09
dc.identifier.otherOklahoma Department of Transportation State Planning and Research item 2184
dc.identifier.urihttps://hdl.handle.net/11244/299502
dc.languageen_US
dc.relation.ispartofseriesNo
dc.relation.requiresAdobe Acrobat Reader
dc.relation.urihttp://www.okladot.state.ok.us/hqdiv/p-r-div/spr-rip/library/reports/fhwa-ok08091.pdf
dc.subject.keywordsVery early strength concrete
dc.subject.keywordsaccelerator
dc.subject.keywordsrapid strength concrete
dc.subject.keywordspatching
dc.subject.keywordsconcrete repair
dc.titleCREATION OF AN ODOT SPECIFICATION FOR PATCHING OR OVERLAY OF BRIDGE DECKS (FHWA-OK-08-09 2184)
dc.typeTechnical Report
dc.type.materialtext

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