초록
본 논문에서는 철관이 들어있는 건축물의 기초를 대용접지극으로 활용하기 위해 콘크리트의 전기적 특성에 관해서 기초적 검토를 하였다. 철근이 들어있는 몰탈블록 모형과 콘크리트블록 모형을 제작 후 접지저항 측정 결과에 따르면, 철근의 수량에 의한 접지 저항값과 대지저항률 보다 블록의 저항율에 의한 접지 저항값이 크게 영향을 받는 것을 알 수 있었다.
The electrical characteristics of concrete block including a reinforcing rod in the foundation of the housing was fundamentally reviewed. It was tried to apply the substitutional earthing electrode in the foundation of the building. In order to identify the difference in the earthing resistance between mortar block and concrete block model, those models including a reinforcing rod in their inside were prepared and investigated for the earthing resistance. In results, the earthing resistance was largely affected by the block's resistivity compared to the change of resistance in reinforcing rods and the ground resistivity.
