염화물에 노출된 콘크리트 기공 내에 솔방울 추출물의 부식 방청 특성

Corrosion Inhibition Properties of Conifer Cone (Pinus resinosa) Extract in Chloride Contaminated Concrete Pore Solutions

  • 발행 : 2021.05.20

초록

The corrosion inhibition properties of conifer cone (Pinus resinosa) extract were studied in synthetic concrete pore solutions (SCPS) with and without chloride environments by electrochemical methods. The electrochemical impedance spectroscopy (EIS) revealed that the conifer cone (CC) extract showed promising inhibition behavior by diminishing the corrosion rate of steel rebar both solutions i.e. with and without chloride. The extract of conifer cone hinders the corrosion reaction between steel rebar and aggressive ions. Further, it can be verified that the up to 1000mg.L-1 of CC extract can able to reduce the corrosion rate of steel rebar in chloride contaminated concrete.

키워드

과제정보

This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (No. 2015R1A5A1037548).