Long-term performance of bonded concrete overlays subjected to differential shrinkage

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dc.contributor.advisorAlexander, Mark Gavinen_ZA
dc.contributor.authorBeushausen, Hans-Dieteren_ZA
dc.date.accessioned2014-07-31T10:29:21Z
dc.date.available2014-07-31T10:29:21Z
dc.date.issued2005en_ZA
dc.descriptionIncludes bibliographical references (leaves 231-243).
dc.description.abstractThe performance of bonded concrete overlays relates mainly to the resistance against cracking and debonding. The associated failure mechanisms are largely a result of differential volume changes between substrate and overlay. The objective of this research was to develop analytical tools to facilitate the design of bonded overlays subjected to differential shrinkage. The experimental programme included the identification of fundamental strain characteristics and bond strength development of composite members in relation to different interface textures and overlay materials. Existing analytical models for the prediction of strains and stresses in bonded overlays were evaluated. Results from the experimental work indicated that existing models, which are based on simple beam theory, are deficient in modelling overlay strains in a realistic manner. The degree of overlay restraint was found to depend far less on relative sectional dimensions of substrate and overlay as commonly assumed. Based on fundamental aspects concerning strain characteristrics of bonded overlays identified through experimental tests and numerical simulations, an analytical prediction model was developed based on localised strain conditions at the interface.en_ZA
dc.identifier.apacitationBeushausen, H. (2005). <i>Long-term performance of bonded concrete overlays subjected to differential shrinkage</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/5050en_ZA
dc.identifier.chicagocitationBeushausen, Hans-Dieter. <i>"Long-term performance of bonded concrete overlays subjected to differential shrinkage."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2005. http://hdl.handle.net/11427/5050en_ZA
dc.identifier.citationBeushausen, H. 2005. Long-term performance of bonded concrete overlays subjected to differential shrinkage. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Beushausen, Hans-Dieter AB - The performance of bonded concrete overlays relates mainly to the resistance against cracking and debonding. The associated failure mechanisms are largely a result of differential volume changes between substrate and overlay. The objective of this research was to develop analytical tools to facilitate the design of bonded overlays subjected to differential shrinkage. The experimental programme included the identification of fundamental strain characteristics and bond strength development of composite members in relation to different interface textures and overlay materials. Existing analytical models for the prediction of strains and stresses in bonded overlays were evaluated. Results from the experimental work indicated that existing models, which are based on simple beam theory, are deficient in modelling overlay strains in a realistic manner. The degree of overlay restraint was found to depend far less on relative sectional dimensions of substrate and overlay as commonly assumed. Based on fundamental aspects concerning strain characteristrics of bonded overlays identified through experimental tests and numerical simulations, an analytical prediction model was developed based on localised strain conditions at the interface. DA - 2005 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Long-term performance of bonded concrete overlays subjected to differential shrinkage TI - Long-term performance of bonded concrete overlays subjected to differential shrinkage UR - http://hdl.handle.net/11427/5050 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5050
dc.identifier.vancouvercitationBeushausen H. Long-term performance of bonded concrete overlays subjected to differential shrinkage. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2005 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5050en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleLong-term performance of bonded concrete overlays subjected to differential shrinkageen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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