한국건축시공학회:학술대회논문집 (Proceedings of the Korean Institute of Building Construction Conference)
- 한국건축시공학회 2016년도 추계 학술논문 발표대회
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- Pages.148-149
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- 2016
해안인접지역 기초 구조물콘크리트의 내염해 성능 평가 -건축구조기준과의 성능비교-
An Evaluation on the Chloride Resistance of Concrete Footing at Coastal Area -Comparision of Performance in Korea Building Code(KBC)-
초록
In this paper, the increase in chloride resistance of footing concrete at coastal area was evaluated by replacement of Mineral Admixture. In KBC 2009, the footing concrete's minimum specific concrete strength at coastal area is determined to 35MPa. However, this is criteria only based on the strength aspect. Thus, it is not considered to increase the chloride resistance by replacement of Mineral Admixture. According to the test results of chloride ions penetration resistance, 35MPa class concrete with OPC 100% shown inaccessible state. Low-strength (24~30MPa class) concretes with Mineral Admixture, however, presented better performances. In addition, chloride diffusion coefficient tests showed identical appearance. Therefore, the current KBC's chloride resistance criteria based on only concrete strength has to review for the reason it can cause many problems (ex. cost increases by growing concrete strength and the environmental issues by a lot of cement use).
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