INVESTIGATION OF OPTIMIZED GRADED CONCRETE FOR OKLAHOMA - PHASE 2

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dc.contributor.sponsorOklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation
dc.creatorCook, Marllon D.
dc.creatorSeader, J. Nick
dc.creatorLey, Tyler M.
dc.creatorRussell, Bruce W.
dc.date.accessioned2018-01-24T17:07:56Z
dc.date.available2018-01-24T17:07:56Z
dc.date.issued2015-10
dc.description.abstractOptimizing aggregate usage has been a subject widely discussed through the history of concrete. Since aggregates make up over 70% of the volume in a concrete mixture, the aggregate gradation is critical to the strength, workability, and durability of concrete. In practice, there is little quantitative guidance given to practitioners on aggregate proportioning in a mixture to meet the desired performance. The ACI 211 Mixture Design Procedure maybe the most widely taught mixture design method, but still is not widely used in practice due to limitations with the method. In fact, the ACI 211 method only contains a handful of aggregate parameters that many argue about the validity. One of the largest obstacles preventing the development of aggregate parameters and guidance comes from only a few test methods that are capable of providing quantitative data about the workability of concrete. This work focused on creating practical test methods and using them to understand how the aggregate gradation changes the workability of concrete.
dc.description.abstractA series of workability tests for concrete were developed/used to investigate mixtures for bridge deck applications. Each test is used to evaluate various aggregate gradations and develop a new set of design recommendations and specifications.
dc.description.abstractThe ultimate product of this work is a new specification for the state of Oklahoma for mixtures with a greater durability at reduced cost and with improved sustainability. Based on 2015 production this design method has the potential to save the state of Oklahoma over $1.5 million per year, enough power for 440 Oklahoma homes, and reduce long term costs through reduced maintenance from durability issues.
dc.description.peerreviewNo
dc.description.versionFinal report, October 2013-October 2015
dc.format.extent156 pages
dc.format.extent5,787,682 bytes
dc.format.mediumapplication.pdf
dc.identifier.govdocFHWA-OK-15-07
dc.identifier.otherOklahoma Department of Transportation State Planning and Research item
dc.identifier.urihttps://hdl.handle.net/11244/54316
dc.languageen_US
dc.relation.ispartofseriesNo
dc.relation.requiresAdobe Acrobat Reader
dc.relation.urihttp://digitalprairie.ok.gov/cdm/ref/collection/stgovpub/id/517707
dc.subject.keywordsOptimized Graded Concrete
dc.subject.keywordsAggregate Gradation
dc.titleINVESTIGATION OF OPTIMIZED GRADED CONCRETE FOR OKLAHOMA - PHASE 2
dc.typeTechnical Report
dc.type.materialtext

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