Behaviour of concrete columns with different levels of steel corrosion and repaired with a composite Jacket

Reibelt, Tyla (2017) Behaviour of concrete columns with different levels of steel corrosion and repaired with a composite Jacket. [USQ Project]


The aim of this project is to determine the effectiveness of using a fibre composite jacket, fitted with an easy fit and self-locking mechanical joint, at the repair of reinforced concrete columns simulating different levels of steel corrosion. Due to the fact that corrosion of steel reinforcement in concrete structures is major problem facing around the world. The current repair methods involve applying steel or concrete jackets, which undergo the same corrode process as did the original materials. The use of noncorrosive fibre composite jackets for repairing deteriorated concrete structures is now increasing. Recently, a new fibre reinforced polymer jacket fitted with an easy fit and self-locking mechanical joint for the easy repair of reinforced concrete structures have been developed. Testing of this product is required to determine its behaviour while in use, this is purpose of this project. Therefore, four steel reinforced concrete columns were prepared and tested; one without damage for control specimen, three with simulated steel corrosion, i.e. 0%, 25% and 50% and repaired with composite jacket. These columns were tested under a 2000kN capacity hydraulic cylinder and complete with strain gauges in the CFM laboratory. The applied load, deformation and strains were measured and the failure behaviour was observed carefully. An analyses and comparison of the data recorded form the testing phase is conducted to determine each columns behaviour when repaired with the fibre composite jacket. Finally based on the analysed results of the experiment, the following final findings concluded that the jacket does provides an increase in strength, and that the behaviour of the column simulating 25% corrosion was very close to the behaviour of the control column with no composite jacket or corrosion simulation. Therefore, proving the jackets effectiveness as a repair method for carrion of reinforced concrete columns.

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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Engineering (Honours) (Civil)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Supervisors: Manalo, Allan
Date Deposited: 08 Sep 2022 03:49
Last Modified: 08 Sep 2022 03:49
Uncontrolled Keywords: concrete columns; steel sorrosion; composite jacket

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