CHARACTERIZATION OF SENSING REPAIR MATERIALS

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dc.contributor.advisorVipulanandan, Cumaraswamy
dc.contributor.committeeMemberAyoub, Ashraf S.
dc.contributor.committeeMemberSong, Gangbing
dc.creatorPakeetharan, Srisothinathan
dc.date.accessioned2014-11-21T18:53:28Z
dc.date.available2014-11-21T18:53:28Z
dc.date.createdAugust 2012
dc.date.issued2012-08
dc.date.updated2014-11-21T18:53:28Z
dc.description.abstractIn order to monitor construction, repairs, and maintenance of various types of structures, it is critical to develop materials used for structural applications with sensing capabilities. In this study, polymer and cement based structural grouting materials with compressive strengths in the range of 30 to 70 MPa were modified to have sensing capabilities. Piezoresistivity was considered as the sensing property and materials were tested under various service conditions in terms of strength and sensitivity. In addition, real-time application of such smart materials for low stress disaster monitoring was investigated. Also a cementitious repair material typically used in steel pipes as protective coating was investigated to evaluate the field performance in terms of shrinkage, water absorption, and strength characteristics. For the piezoresistive cementitious and polymeric materials the resistivity change was over 10 times more than the engineering strain. A specially designed polymeric composite cantilever beam detected applied pressure as small as 1.4 kPa (~0.2 psi). The compressive stress-strain relationships of the polymer and cementitious composite were modeled using a non-linear relationship and the constitutive behavior of the piezoresistive material was modeled using incremental nonlinear stress-resistivity relationship.
dc.description.departmentCivil and Environmental Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/777
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectSelf-sensing
dc.subjectRepair material
dc.subjectPolymeric grout
dc.subjectCement grout
dc.subjectPiezoresistivity
dc.subjectReal time monitoring
dc.subjectLow stress monitoring
dc.subjectStress-resistivity model
dc.subject.lcshCivil engineering
dc.titleCHARACTERIZATION OF SENSING REPAIR MATERIALS
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentCivil and Environmental Engineering, Department of
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science in Civil Engineering

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