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dc.contributor.advisorAmde, Amde Men_US
dc.contributor.advisorLivingston, Richard Aen_US
dc.contributor.authorShi, Kuoen_US
dc.date.accessioned2019-10-02T05:35:15Z
dc.date.available2019-10-02T05:35:15Z
dc.date.issued2019en_US
dc.identifierhttps://doi.org/10.13016/sfvs-0sok
dc.identifier.urihttp://hdl.handle.net/1903/25203
dc.description.abstractThe strains in a concrete caused by delayed ettringite formation (DEF) are conventionally expressed in terms of the one-dimensional linear expansion. However, concrete is not a homogeneous material, and differences in the volume change between the inert aggregates and the reactive cement paste will produce variations in local displacements that cannot be detected by the linear expansion variable. With CT slices offered by Simultaneous neutron and X-ray computed tomography (SNXCT), this thesis applies image analysis algorithms to quantify the distortion of cylinder over time due to delayed ettringite formation. The research reported in this thesis concerned the development of several MATLAB programs to apply image analysis algorithms to quantify the distortion of cylinder over time in terms of summary variables. These included mean radial expansion, deviation from circularity, vertical tilt angle and rotation, void area fraction and the displacement of microbead internal reference points.en_US
dc.language.isoenen_US
dc.title3D IMAGE ANALYSIS OF CT DATA OF CONCRETE CYLINDER SUNDERGOING DELAYED ETTRINGTIE FORMATIONen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentCivil Engineeringen_US
dc.subject.pqcontrolledCivil engineeringen_US


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