Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves

Rajeshwara C. Sriramadasu; Ye Lu; Sauvik Banerjee

doi:10.18057/ICASS2018.P.163

Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves

Rajeshwara C. Sriramadasu, Ye Lu, Sauvik Banerjee

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

2 Citations (Scopus)

Abstract

In this paper ultrasonic guided waves generated by surface bonded piezoelectric wafer transducers (PWTs) are deployed to identify localised corrosion in steel bars, which is simulated in the laboratory using the impressed current method. It is observed that flexural mode F(1,1) has high sensitivity to the corrosion in simple steel bars as well as embedded steel reinforcement bars (rebars). The variation of group velocity of F(1,1) mode for various level corrosion is studied. Group velocity has direct linear correlation with the mass loss in steel bars while corrosion in embedded rebars has a complex nature. However, various phases of corrosion in embedded steel rebars can still be interpreted using the change in wave velocity.

Original language	English
Title of host publication	Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
Editors	Siu Lai Chan, Tak-Ming Chan, Songye Zhu
Publisher	Hong Kong Institution of Steel Construction
ISBN (Electronic)	9789889914097
DOIs	https://doi.org/10.18057/ICASS2018.P.163
Publication status	Published - 2020
Event	International Conferences on Advances in Steel Structures 2018 - Hong Kong, China Duration: 5 Dec 2018 → 7 Dec 2018 Conference number: 9th

Conference

Conference	International Conferences on Advances in Steel Structures 2018
Abbreviated title	ICASS 2018
Country/Territory	China
City	Hong Kong
Period	5/12/18 → 7/12/18

Keywords

Corrosion
Flexural mode
Guided waves
Impressed current method
Piezoelectric wafer transducers (PWTs)
Steel bars

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10.18057/ICASS2018.P.163

Cite this

Sriramadasu, R. C., Lu, Y., & Banerjee, S. (2020). Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves. In S. L. Chan, T.-M. Chan, & S. Zhu (Eds.), Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018 Hong Kong Institution of Steel Construction. https://doi.org/10.18057/ICASS2018.P.163

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title = "Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves",

abstract = "In this paper ultrasonic guided waves generated by surface bonded piezoelectric wafer transducers (PWTs) are deployed to identify localised corrosion in steel bars, which is simulated in the laboratory using the impressed current method. It is observed that flexural mode F(1,1) has high sensitivity to the corrosion in simple steel bars as well as embedded steel reinforcement bars (rebars). The variation of group velocity of F(1,1) mode for various level corrosion is studied. Group velocity has direct linear correlation with the mass loss in steel bars while corrosion in embedded rebars has a complex nature. However, various phases of corrosion in embedded steel rebars can still be interpreted using the change in wave velocity.",

keywords = "Corrosion, Flexural mode, Guided waves, Impressed current method, Piezoelectric wafer transducers (PWTs), Steel bars",

author = "Sriramadasu, {Rajeshwara C.} and Ye Lu and Sauvik Banerjee",

year = "2020",

doi = "10.18057/ICASS2018.P.163",

language = "English",

editor = "Chan, {Siu Lai} and Tak-Ming Chan and Songye Zhu",

booktitle = "Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018",

publisher = "Hong Kong Institution of Steel Construction",

note = "International Conferences on Advances in Steel Structures 2018, ICASS 2018 ; Conference date: 05-12-2018 Through 07-12-2018",

}

Sriramadasu, RC, Lu, Y & Banerjee, S 2020, Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves. in SL Chan, T-M Chan & S Zhu (eds), Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018. Hong Kong Institution of Steel Construction, International Conferences on Advances in Steel Structures 2018, Hong Kong, China, 5/12/18. https://doi.org/10.18057/ICASS2018.P.163

Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves. / Sriramadasu, Rajeshwara C.; Lu, Ye; Banerjee, Sauvik.
Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018. ed. / Siu Lai Chan; Tak-Ming Chan; Songye Zhu. Hong Kong Institution of Steel Construction, 2020.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves

AU - Sriramadasu, Rajeshwara C.

AU - Lu, Ye

AU - Banerjee, Sauvik

N1 - Conference code: 9th

PY - 2020

Y1 - 2020

N2 - In this paper ultrasonic guided waves generated by surface bonded piezoelectric wafer transducers (PWTs) are deployed to identify localised corrosion in steel bars, which is simulated in the laboratory using the impressed current method. It is observed that flexural mode F(1,1) has high sensitivity to the corrosion in simple steel bars as well as embedded steel reinforcement bars (rebars). The variation of group velocity of F(1,1) mode for various level corrosion is studied. Group velocity has direct linear correlation with the mass loss in steel bars while corrosion in embedded rebars has a complex nature. However, various phases of corrosion in embedded steel rebars can still be interpreted using the change in wave velocity.

AB - In this paper ultrasonic guided waves generated by surface bonded piezoelectric wafer transducers (PWTs) are deployed to identify localised corrosion in steel bars, which is simulated in the laboratory using the impressed current method. It is observed that flexural mode F(1,1) has high sensitivity to the corrosion in simple steel bars as well as embedded steel reinforcement bars (rebars). The variation of group velocity of F(1,1) mode for various level corrosion is studied. Group velocity has direct linear correlation with the mass loss in steel bars while corrosion in embedded rebars has a complex nature. However, various phases of corrosion in embedded steel rebars can still be interpreted using the change in wave velocity.

KW - Corrosion

KW - Flexural mode

KW - Guided waves

KW - Impressed current method

KW - Piezoelectric wafer transducers (PWTs)

KW - Steel bars

UR - http://www.scopus.com/inward/record.url?scp=85084948850&partnerID=8YFLogxK

U2 - 10.18057/ICASS2018.P.163

DO - 10.18057/ICASS2018.P.163

M3 - Conference Paper

AN - SCOPUS:85084948850

BT - Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018

A2 - Chan, Siu Lai

A2 - Chan, Tak-Ming

A2 - Zhu, Songye

PB - Hong Kong Institution of Steel Construction

T2 - International Conferences on Advances in Steel Structures 2018

Y2 - 5 December 2018 through 7 December 2018

ER -

Identification of pitting corrosion in steel bars and rebars embedded in concrete using ultrasonic guided waves

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