NWORGU, TOBECHUKWU AUSTIN and Covenant University, Theses (2021) STRUCTURAL RETROFITTING OF CORRODED REINFORCED CONCRETE BEAMS USING BAMBOO FIBER LAMINATE. Masters thesis, COVENANT UNIVERSITY.
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Abstract
Corrosion is a major degradation mechanism in reinforced concrete (RC) structures that contributes to the high cost of maintenance and repair of affected buildings. However, as the cost of repairing corrosion damaged structures is high, alternative cheap, eco-friendly and sustainable methods are being proposed. In this study, the structural retrofitting of corroded reinforced concrete beam was carried out using bamboo fibre laminate. . The structural capacity of the beams, in flexure, was evaluated following the loading process of 1 ton increments. This was an experimental study that was carried out in two laboratories namely: the structural laboratory of civil engineering department, covenant university and university of lagos. during the time of performing the experiments, this aspects were assessed and recorded : load-displacements analysis, displacement characteristics, crack patterns and failure modes. The process of arriving at these results invoved three Reinforced Concrete beams, differently assembled for the tests (one control beam, one corroded beam un-strenghtned with bamboo laminate and a corroded beam strenghtened with bamboo laminate. The experiment ended with results showing that corroded beams strengthened with bamboo laminates increase the bearing capacity supporting other studies using natural fiber composites The use of a single Bamboo laminate in the tensile region increased the ultimate load capacity up to 21.1% greater than the corroded beam though 20% lesser than the control beam which can be attributed to corrosion of the steel reinforcemets. Hence, it can be recommended that bamboo fibers be used as a retrofitting material.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Strengthening; fiber composites ; Bamboo laminate; Corrosion, flexural behavior; reinforced concrete beams |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Mrs Hannah Akinwumi |
| Date Deposited: | 14 Jan 2022 14:40 |
| Last Modified: | 14 Jan 2022 14:40 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/15569 |
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