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dc.contributor.advisorVipulanandan, Cumaraswamy
dc.creatorKrishnathasan, Mayooran
dc.date.accessioned2019-09-10T16:46:51Z
dc.date.createdDecember 2018
dc.date.issued2018-12
dc.date.submittedDecember 2018
dc.identifier.urihttps://hdl.handle.net/10657/4445
dc.description.abstractIn this study acrylamide polymer was added to the smart cement and the rheological, mechanical and corrosion resistance properties of the resultant composites were studied. Also, the effect of acrylamide polymer modified grouts to further enhance the physical, mechanical and sensing properties from the time of mixing through pumping and final setting. Wet and dry cycle of acrylamide polymer grouted sand modified with algae was studied and the electrical sensing ability of composition was verified using the weight measurements. Splitting tensile strength of grouted sand prepared without and with algae increased by 118% and 130% to 180% respectively after one wet and dry cycle. The test results showed the moisture loss and chemical shrinkage of the smart cement was reduced with addition of 2.5% concentrated acrylamide polymer from 1.2% to 0.1% and from 4.6% to 0.4% respectively. Identified that the flowability of smart cement was reduced after high concentrated acrylamide polymer modification. Rheological properties of acrylamide polymer, smart cement and acrylamide polymer modified smart cement were modelled using Modified Bingham model, Herschel Bulkley model and Vipulanandan rheological model. Based on the coefficient of determination and root mean square error, Vipulanandan model predicted the test results well. Also, the investigation of rheology of polymer modified cement with UH biosurfactant showed that it improved the workability of acrylamide polymer modified cement and showed 16% increase in the maximum shear stress (τmax). API (30 minutes) fluid loss was 131.4 mL for smart cement with addition acrylamide polymer, the fluid loss was reduced to 77.3mL - 83.8 mL. Splitting tensile strength of smart cement was increased by 22% with the addition of 2% acrylamide polymer and the piezoresistivity at peak stress was 35% which reduced to 18% with the addition of 1.5% polymer. Based on over 300 uniaxial, biaxial and triaxial test data on plain concrete with uniaxial compressive strength in the range of 22 MPa to 70 MPa were used to verify the Vipulanandan generalized concrete failure model.
dc.format.mimetypeapplication/pdf
dc.language.isoen
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.subjectGrouted sand
dc.subjectPolymer modified cement
dc.titleBehavior of Polymer Grouted Sand and Polymer Modified Smart Cement with Verification of New Failure Model for Concrete
dc.date.updated2019-09-10T16:46:51Z
dc.type.genreThesis
thesis.degree.nameMaster of Science in Civil Engineering
thesis.degree.levelMasters
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.departmentCivil and Environmental Engineering, Department of
dc.contributor.committeeMemberMo, Yi-Lung
dc.contributor.committeeMemberLim, Gino J.
local.embargo.terms2020-12-01
local.embargo.lift2020-12-01
dcterms.accessRightsThe full text of this item is not available at this time because the student has placed this item under an embargo for a period of time. The Libraries are not authorized to provide a copy of this work during the embargo period.
dc.type.dcmiText
dc.format.digitalOriginborn digital
dc.description.departmentCivil and Environmental Engineering, Department of
thesis.degree.collegeCullen College of Engineering


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