한국콘크리트학회:학술대회논문집 (Proceedings of the Korea Concrete Institute Conference)
- 한국콘크리트학회 1999년도 학회창립 10주년 기념 1999년도 가을 학술발표회 논문집
- /
- Pages.131-134
- /
- 1999
고농도 염화물을 함유하는 혼합시멘트 계에서 철근부식에 따른 미세구조의 변화와 전기화학적 특성
Microstructure modification and electrochemical properties of steel corrosion in the blended cement systems containing internal chlorides
초록
Microstructure modification and electrochemical properties are investigate to estimate the effects of internal chlorides on the steel corrosion in the blended cement systems. According to the test results, slag cement system showed high chloride binding capacity and low corrosion rate. The impedance data showed three distince arcs from lowest(mHz) frequency to highest (MHz) frequency due to product layer, interfacial reaction and bulk matrix. Through the microstructural investigation, fine steel-matrix interface of slag cement system was observed but rough steel-matrix interface of OPC system was observed. Friedel's salt was thought that the substantial material contributed to the chloride binding of slag cement system.
키워드