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Long-term performance of bonded concrete overlays subjected to differential shrinkage
Includes bibliographical references (leaves 231-243).
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Civil Engineering
2014
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| _version_ | 1867613254758432768 |
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| access_status_str | Open Access |
| author | Beushausen, Hans-Dieter |
| author2 | Alexander, Mark Gavin |
| author_browse | Alexander, Mark Gavin Beushausen, Hans-Dieter |
| author_facet | Alexander, Mark Gavin Beushausen, Hans-Dieter |
| author_sort | Beushausen, Hans-Dieter |
| collection | Thesis |
| description | Includes bibliographical references (leaves 231-243). |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/5050 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:13.838Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/5050 Long-term performance of bonded concrete overlays subjected to differential shrinkage Beushausen, Hans-Dieter Alexander, Mark Gavin Civil Engineering Includes bibliographical references (leaves 231-243). 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. 2014-07-31T10:29:21Z 2014-07-31T10:29:21Z 2005 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/5050 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Beushausen, Hans-Dieter Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| thesis_degree_str | Doctoral |
| title | Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| title_full | Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| title_fullStr | Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| title_full_unstemmed | Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| title_short | Long-term performance of bonded concrete overlays subjected to differential shrinkage |
| title_sort | long term performance of bonded concrete overlays subjected to differential shrinkage |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/5050 |
| work_keys_str_mv | AT beushausenhansdieter longtermperformanceofbondedconcreteoverlayssubjectedtodifferentialshrinkage |