콘크리트는 외부로부터 침투하는 열화 인자들의 침투에 의해 철근이 부식하고 구조재료로써의 성능이 저하된다. 발수제를 직접 도포하거나 혼입하는 방법이 연구되고 있고, 본 연구에서는 발수제의 뭉침 및 떠오름을 방지하기 위하여 다공성 재료인 제올라이트를 혼입한 발수콘크리트 개발을 위한 기초연구를 수행하였다. 제올라이트 치환율에 따른 시험체를 제작하였으며, 접촉각 측정결과 치환량과 접촉각의 크기는 비례하여 증가하는 것을 확인하였다.

This research and development analysis provides numerical analysis techniques that can be used conveniently to determining the safety of the current state and to predict the stability in the future. It also seeks to present algorithms of back analysis to develop unified management system for control, prediction, coordination, and information modeling that can reasonably handle appropriate responses to structural behavior at project sites and design changes.

In this study, the impedance of reinforced concrete embedded in concrete was measured and compared with W/B and admixture replacement ratio. As a result, the impedance of rebars increased in all frequency sections with increasing blast furnace slag replacement amount of cement in all W/B Respectively. It is considered that the electro resistance in the concrete increases due to the potential hydraulic properties of the blast furnace slag, and thus the polarization resistance also increases.