Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete
This study investigates the feasibility of distributed fiber optic sensor for corrosion monitoring of steel bars embedded in concrete. Two sensor installation methods are compared: (1) attaching the sensor along the bar and (2) winding the sensor on the bar. For the second method, optical fibers wer...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-11-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/18/11/3722 |
| _version_ | 1798039745286111232 |
|---|---|
| author | Liang Fan Yi Bao Genda Chen |
| author_facet | Liang Fan Yi Bao Genda Chen |
| author_sort | Liang Fan |
| collection | DOAJ |
| description | This study investigates the feasibility of distributed fiber optic sensor for corrosion monitoring of steel bars embedded in concrete. Two sensor installation methods are compared: (1) attaching the sensor along the bar and (2) winding the sensor on the bar. For the second method, optical fibers were winded spirally on steel bars with different spacings: 0 mm, 2 mm, 5 mm, and 10 mm. Steel bar pull-out testing was conducted to evaluate the effect of presence of distributed sensor on the bond strength of steel⁻concrete interface. Electrochemical testing was carried out to assess the influence of the installation methods on the corrosion resistance of the reinforced concrete. Winding the optical fiber on steel bars with a 10-mm spacing does not affect the bond strength and corrosion resistance and allows real-time corrosion monitoring. The distributed sensor data can be used to estimate the corrosion induced steel loss and predict concrete cracking. |
| first_indexed | 2024-04-11T21:57:59Z |
| format | Article |
| id | doaj.art-d0c78d85d4634490977aebf596130bb3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:57:59Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d0c78d85d4634490977aebf596130bb32022-12-22T04:01:02ZengMDPI AGSensors1424-82202018-11-011811372210.3390/s18113722s18113722Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced ConcreteLiang Fan0Yi Bao1Genda Chen2Department of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65401, USADepartment of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USADepartment of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65401, USAThis study investigates the feasibility of distributed fiber optic sensor for corrosion monitoring of steel bars embedded in concrete. Two sensor installation methods are compared: (1) attaching the sensor along the bar and (2) winding the sensor on the bar. For the second method, optical fibers were winded spirally on steel bars with different spacings: 0 mm, 2 mm, 5 mm, and 10 mm. Steel bar pull-out testing was conducted to evaluate the effect of presence of distributed sensor on the bond strength of steel⁻concrete interface. Electrochemical testing was carried out to assess the influence of the installation methods on the corrosion resistance of the reinforced concrete. Winding the optical fiber on steel bars with a 10-mm spacing does not affect the bond strength and corrosion resistance and allows real-time corrosion monitoring. The distributed sensor data can be used to estimate the corrosion induced steel loss and predict concrete cracking.https://www.mdpi.com/1424-8220/18/11/3722corrosion monitoringdistributed fiber optic sensorelectrochemical testexpansion straininstallationpull-out teststeel mass loss |
| spellingShingle | Liang Fan Yi Bao Genda Chen Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete Sensors corrosion monitoring distributed fiber optic sensor electrochemical test expansion strain installation pull-out test steel mass loss |
| title | Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete |
| title_full | Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete |
| title_fullStr | Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete |
| title_full_unstemmed | Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete |
| title_short | Feasibility of Distributed Fiber Optic Sensor for Corrosion Monitoring of Steel Bars in Reinforced Concrete |
| title_sort | feasibility of distributed fiber optic sensor for corrosion monitoring of steel bars in reinforced concrete |
| topic | corrosion monitoring distributed fiber optic sensor electrochemical test expansion strain installation pull-out test steel mass loss |
| url | https://www.mdpi.com/1424-8220/18/11/3722 |
| work_keys_str_mv | AT liangfan feasibilityofdistributedfiberopticsensorforcorrosionmonitoringofsteelbarsinreinforcedconcrete AT yibao feasibilityofdistributedfiberopticsensorforcorrosionmonitoringofsteelbarsinreinforcedconcrete AT gendachen feasibilityofdistributedfiberopticsensorforcorrosionmonitoringofsteelbarsinreinforcedconcrete |