- Volume 26 Issue 3
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Sulfate and Freeze-thaw Resistance Characteristic of Multi-component Cement Concrete Considering Marine Environment
해양환경을 고려한 다성분계 시멘트 콘크리트의 황산염 및 동결융해 저항 특성
Kim, Myung-Sik;Beak, Dong-Il;Kang, Jun-Ho
- Received : 2012.03.08
- Accepted : 2012.06.21
- Published : 2012.06.30
Recently, concrete using multicomponent blended cement has been required to increase the freeze-thaw and sulfate resistances of concrete structures exposed to a marine environment. Thus, the purpose of this study was to propose the use of concrete containing multicomponent blended cement as one of the alternatives for concrete structures exposed to a marine environment. For this purpose, batches of concrete containing ordinary portland cement (OPC), binary blended cement (OPC-G, G: ground granulated blast slag), ternary blended cement (OPC-GF, F: fly ash), and quaternary blended cement (OPC-GFM, M: mata-kaolin) were made using a water-binder ratio of 50%. Then, the durability levels, including thesulfate and freeze-thaw resistances, were estimated for concrete samples containing OPC, OPC-G, OPC-GF, and OPC-GFM. It was observed from the tests that the durability levels of the concrete samples containing OPC-G and OPC-GF were found to be much better than that of the concrete containing OPC. The optimum mixing proportions were a40% replacement ratio of ground granulated blast slag for the binary blended cement and a30% replacement ratio of ground granulated blast slag and 10% fly ash for the ternary blended cement.
Freeze-thaw attack;Sulfate attack;Fly ash;Ground granulated blast slag;Mata-kaolin
- 김명식, 백동일 (2007). "황산염 침해를 받는 부순모래 모르타르의 단위중량 및 압축강도 특성", 대한토목학회 논문집, 제 27권, 제4-A호, pp 585-591.
- 김명식, 백동일, 최강석 (2009). "동결융해와 황산염의 복합작용을 받는 부순모래 모르타르의 기초 특성 평가", 한국해양공학회지, 제23권, 제5호, pp 54-60.
- 배수호, 박재임, 이광명 (2010). "콘크리트의 황산 및 황산염 침투 저항성에 미치는 광물질 혼화재의 영향", 콘크리트 학회지, 제22권, 제2호, pp 219-228.
- American Society for Testing Materials (ASTM) C 672 (2004). Standard Testing for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals (ASTM C 672/C 672M-03).
Supported by : 부경대학교