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    Volume 46, Issue 4 (March 2018)

    Special Issue Paper

    An Optical Fiber Sensor Method for Simultaneously Monitoring Corrosion and Structural Strain Induced by Loading

    (Received 11 September 2016; accepted 11 July 2017)

    Published Online: 19 March 2018

    CODEN: JTEVAB

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    Abstract

    Monitoring the entire process of concrete corrosion is critical for assessing the remaining life of the structure and determining if maintenance is needed. In this study, the long-distance embedded optical fiber sensor (LEOFS) and the embedded corrosion optical fiber sensor (ECOFS) were both embedded to form a smart reinforced concrete beam that could simultaneously sense loading and corrosion. The structural strain induced by loading was recorded by the LEOFS; meanwhile, the structural strain induced by corrosion was monitored by the ECOFS. The experimental result shows that the aluminum-plastic tube makes the LEOFS effective for long-term monitoring in the corrosive environment. The result also indicates that selecting an appropriate location for the ECOFS leads to high accuracy measurement of strain induced by corrosion. The data of the ECOFS are meaningful for judging the corrosion cracking moment and for estimating the corrosion crack width for the entire corrosion process.

    Author Information:

    Mao, Jianghong
    Ningbo Institute of Technology, Zhejiang University, Ningbo,

    Xu, Fangyuan
    Ningbo Institute of Technology, Zhejiang University, Ningbo,

    Jin, Weiliang
    Ningbo Institute of Technology, Zhejiang University, Ningbo,

    Institute of Structural Engineering, Zhejiang University, Hangzhou,

    Gao, Qian
    Ningbo Institute of Technology, Zhejiang University, Ningbo,

    College of Civil Engineering, Chongqing Jiaotong University, Chongqing,

    Xu, Yidong
    Ningbo Institute of Technology, Zhejiang University, Ningbo,

    Xu, Chen
    Institute of Structural Engineering, Zhejiang University, Hangzhou,


    Stock #: JTE20160466

    ISSN:0090-3973

    DOI: 10.1520/JTE20160466

    Author
    Title An Optical Fiber Sensor Method for Simultaneously Monitoring Corrosion and Structural Strain Induced by Loading
    Symposium ,
    Committee G01