UM
Use of a novel electro-magnetic apparatus to monitor corrosion of reinforced bar in concrete
Li Z.1; Jin Z.1; Zhao T.1; Wang P.1; Li Z.3; Xiong C.1; Zhang K.2
2019-02-01
Source PublicationSensors and Actuators, A: Physical
ISSN09244247
Volume286Pages:14-27
AbstractCorrosion monitoring of reinforced bar is critical for evaluating the safety and durability of concrete structures. The aim of this paper is to introduce a novel electro-magnetic monitoring apparatus (EMMA) that can be used to monitor corrosion of reinforced bar in concrete. 24 Hall-effect sensors are mounted on the novel EMMA with linearly arrangement and an enlargement monitoring probe is also equipped, by which the magnetic field intensity variation of reinforced bar/concrete interface can be detected. For comparison, the traditional electro-chemical impedance spectroscopy of the reinforced bar in concrete was recorded. As the results shown, the magnetic flux changed when corrosion occurred on reinforced bar, which further induced the increase of Hall-effect voltage at cross section of reinforced concrete. With the information of changed Hall-effect voltage, damage identification and orientation in concrete can be recorded by the EMMA. This can be used to monitor and analyze the reinforced bar corrosion in concrete time-dependently.
KeywordCorrosion monitoring Electro-magnetic sensors Hall-effect voltage Reinforced bar
DOI10.1016/j.sna.2018.12.024
URLView the original
Language英語
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Qingdao University
2.Ocean University of China
3.Universidade de Macau
4.Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone
Recommended Citation
GB/T 7714
Li Z.,Jin Z.,Zhao T.,et al. Use of a novel electro-magnetic apparatus to monitor corrosion of reinforced bar in concrete[J]. Sensors and Actuators, A: Physical,2019,286:14-27.
APA Li Z..,Jin Z..,Zhao T..,Wang P..,Li Z..,...&Zhang K..(2019).Use of a novel electro-magnetic apparatus to monitor corrosion of reinforced bar in concrete.Sensors and Actuators, A: Physical,286,14-27.
MLA Li Z.,et al."Use of a novel electro-magnetic apparatus to monitor corrosion of reinforced bar in concrete".Sensors and Actuators, A: Physical 286(2019):14-27.
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