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Title |
Fundamental Study on Developing Embedded Mini-Sensor for Nondestructive Diagnosis Corrosion of Rebar
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Authors |
조성형 ; 임영철 ; Mohamed Ismail ; 이한승 |
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Keywords |
철근부식 ; 비파괴 ; 미니센서 ; 자연전위 ; 분극저항 Corrosion of rebar ; Nondestructive ; Mini-sensor ; Potential ; Polarization resistance |
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Abstract |
Corrosion of rebar embedded reinforced concrete is the main cause of collapse and degradation of reinforced concrete structure. Degradation occurs in reinforced concrete structures from corrosion caused by the Chloride that the damage other than the severe degradation of the structure in terms of maintenance and construction when the huge expense required and deciding terms is hard. Therefore, early detection of rebar corrosion is important for efficient maintenance and repairing and planning. Meanwhile, how to evaluate the corrosion of the non-destructive measurements have been used a lot. In particular CM-Ⅱ (corrosion meter) is used to measurement the natural potential, polarization resistance and the resistivity of the concrete, but has some disadvantages. Embedded mini-sensor has been developed in order to overcome these disadvantages. So Measurement corrosion for using the mini-sensor compares with the measured results CM-Ⅱ (corrosion meter), the developed mini-sensor verify the validity.
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