Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Civil and Structural Engineering | en_US |
| dc.creator | Yang, Minjie | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/6860 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Corrosion rate and bond performance of steel reinforcement in FRP-wrapped concrete subjected to dry and wet cycling | en_US |
| dcterms.abstract | Corrosion of reinforcing steel in reinforced concrete is a significant problem throughout the world. It is estimated that more than a hundred billion dollars is needed for the rehabilitation of existing transportation related structures. More than half of these structures are made of reinforced concrete, and their main deficiencies are associated with reinforcement corrosion. The corrosion rate and bond performance of reinforcement in FRP-confined concrete under simulated marine environment were studied. A 0.60 water to cement ratio concrete was used and 5% NaCl solution were used to simulate the tidal cycle. There were two tests in the study. One is electrochemical method for monitoring corrosion rate; the other is pull-out test. In order to accurately monitor rebar corrosion in concrete, 12 embedded sensors are desirable for not only prevent concrete cover effect on monitoring measurement but for continuous long-term monitor. Using them three kinds of electrochemical characteristics can be measures: natural potential, polarization resistance and electrochemical resistance. There were 63 specimens for pull-out test. Test variables included the degree of corrosion (0%, 1%, 3%, 5% and 10% mass loss), wrapped or unwrapped FRP, confinement by GFRP or CFRP and FRP wrapped layers. This paper was to evaluate the effectiveness of the FRP in slowing down the corrosion rate in specimens and examine the ability of FRP to maintain the bond strength of reinforcing bars undergoing natural corrosion and to determine the bond-slip response of corroded steel reinforcement in concrete wrapped with FRP. | en_US |
| dcterms.extent | 65 leaves, [96] p. : ill. (some col.) ; 30 cm. | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2012 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Sc. | en_US |
| dcterms.LCSH | Reinforcing bars -- Corrosion. | en_US |
| dcterms.LCSH | Steel -- Corrosion. | en_US |
| dcterms.LCSH | Reinforced concrete -- Corrosion. | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b25545656.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 21.03 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/6860