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  1. Senin, S.F., Rohim, R., Yusuff, A., Rozli, M.I.F., Ahmad, J.
    MyJurnal
    Structural Health Monitoring (SHM) is a crucial scope of work in civil engineering specifically on
    monitoring the in-service and ageing coastal bridge deck concrete structure serviceability and limit
    state status performance. One of the possible natural process that pose detrimental effects to such
    structure performance monitoring is the steel rebar pitting corrosion problem. Progressive pitting
    corrosion process on the certain steel rebar area in low quality of concrete cover due to chloride
    ingression will cause local premature damage the steel rebar which obviously affect the serviceability
    performance of the structural element, i.e. displacement. However, the available displacement
    monitoring methods become an issue when it comes to engineering practicality and costs
    considerations. Therefore, the purpose of this study is to monitor and analyze the vertical
    displacement of an undamaged and damage reinforced concrete beam using the digital signal
    processing technology, Digital Image Correlation, (DIC) that use Sony camera and MATLAB scripts,
    and compared to a traditional method, Linear Variable Displacement Transducer (LVDT) at two
    points bending tests setup. It was concluded, that the quantified displacement for corrosion-damage
    RC via DIC method is higher than the normal reinforced concrete beam by 2 to 46 percent of error to
    LVDT measurements. Based on two tailed paired t-test analysis, DIC method was concluded to be as
    good as the LVDT method of measuring the beam’s displacement. The developed method has the
    potential implementation on monitoring the any beam deflection on current real civil engineering
    related projects.
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