Mitigation of Delayed Ettringite Formation in Laboratory Specimens

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dc.contributor.advisorAmde, Amdeen_US
dc.contributor.authorShaikh, Hafizen_US
dc.contributor.departmentCivil Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2007-06-22T05:35:26Z
dc.date.available2007-06-22T05:35:26Z
dc.date.issued2007-04-25
dc.description.abstractThe objective of this study was to determine if the growth of delayed ettringite formation (DEF) in existing concrete can be reduced or even prevented with commercial products. Additionally, the objectives were to determine if externally treating concrete specimens with water repellents and crystal growth inhibitors will decrease DEF-related expansion. The research required casting laboratory specimens for expansion and weight measurements, for strength testing, and for scanning electron microscope (SEM). Three of the four products, ChimneySaver, Dequest 2060S, and Good-Rite K752, reduced concrete expansion and weight change when compared to the control set. The study indicates that ettringite may have to be identified and mitigated early to prevent deleterious effects.en_US
dc.format.extent4240700 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/6846
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Civilen_US
dc.subject.pqcontrolledEngineering, Materials Scienceen_US
dc.subject.pqcontrolledEngineering, Civilen_US
dc.subject.pquncontrolledettringiteen_US
dc.subject.pquncontrolleddelayed ettringite formationen_US
dc.subject.pquncontrolleddefen_US
dc.subject.pquncontrolledmitigationen_US
dc.subject.pquncontrolledconcreteen_US
dc.subject.pquncontrolledexpansionen_US
dc.titleMitigation of Delayed Ettringite Formation in Laboratory Specimensen_US
dc.typeThesisen_US

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