외부전원법 적용에 있어 지오폴리머 콘크리트 사용에 따른 철근 방식률 평가

Abstract

Recently, it has been increased that concrete structure constructed in marine environment. When concrete structures are exposed under marine environment for a long time, the rebar in concrete is corroded due to the chloride penetration in the sea water. Because the damages of corrosion resulting from the chloride ion are very serious, many research have been carried out to protect those.

In this study corrosion protecting efficiency was evaluated with the comparison between common concrete and geopolymer concrete to which impressed current cathodic protection(ICCP) is applied. To be simulated in diversified salt attack environment(tidal zone, submerged zone, crack) specimens had been made. After making specimens steady temperature and humidity chamber was used to simulate for the accelerated corrosion of rebar. Half-cell method and corrosion measurement are applied to evaluate corrosion protecting efficiency and the applicability of ICCP is reviewed for each material.