철근부식이 콘크리트 균열에 미치는 영향에 관한 실험적 연구

Abstract

본 연구에서는 피복두께와 콘크리트 강도 이외에 응력집중계수라는 새로운 변수를 도입하여 실험적 연구를 실시하였으며, 이와 별도로 정전압하의 전류의 변화를 특정하여 시간에 따른 전류 변화와 콘크리트 표면의 변위 변화에 대한 상관성을 실험을 통하여 확인하였다.

;The purpose of the this study of to define the critical corrosion amount of the steel cause the cracking of concrete cover. The major variables of the critical corrosion amount are concrete strength and thick of the concrete cover. In this experiment, the constant of stress concentration is added by a new variable. As a result of the experiment, it is confirmed to less decrease in the critical corrosion amount following the constants of stress concentration increased. Besides, electric currents were measured through a generator of constant voltage. When connecting constant voltage with corrosion circuit, it was discovered that magnitude of the change come out similarly between displacement on the concrete cover and electric current according to time.