전기 비저항 측정법의 측정 방법에 관한 연구

The Study on the Method of Measurement about the Electrical Resistivity of concrete

  In order to measure the extent of corrosion of rebar in the concrete, two types of arrangement of the wenner probe to rebar was used. The concrete was corroded in the 3 % NaCl solution. In case of shallow depth compare to cover depth, the electrical resistivity of parallel arrangement of wenner probe is higher than that of normal arrangement. This is thought to be related with the size of specimen. The electrical resistivity is same about 0.6 ㎝ ahead of rebar when two types of arrangement of the wenner probe to rebar is used. With the extent of corrosion the electrical resistivity was decreased.