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NTIS 바로가기한국구조물진단유지관리공학회 논문집 = Journal of the Korea Institute for Structural Maintenance and Inspection, v.21 no.2, 2017년, pp.146 - 154
이윤수 (한양대학교 건축시스템공학과) , 진정심 (한양대학교 건축시스템공학과) , 이한승 (한양대학교 ERICA 건축학부)
Recently, self-healing concrete has been researched as maintenance and repair of concrete structures are important challenges we face. This paper focused on possibility of ion exchange resin as a novelty material directly and actively controlling harmful ions of concrete, whereas most self-healing c...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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철근 보강된 콘크리트 구조물의 단점은? | 그러나 콘크리트와 같은 세라믹 재료는 일반적으로 취성파괴가 일어나는 특성이 있기에 철근과 같은 연성이 있는 재료를 보강하여 사용하게 된다. 철근이 보강됨으로써 콘크리트 구조물은 구조적 성능이 향상될 수 있으나 철근의 부식 문제로 오히려 구조적 및 내구적 성능의 저하를 일으킬 수 있다. | |
콘크리트의 열화원인인 유해 이온을 능동적으로 제어할 수 있는 소재에 관한 연구는 어떤 것들이 있는가? | 철근콘크리트 구조물에 있어서 주요 유해이온으로 염소 이온(Cl-), CO2로부터 유래한 탄산 또는 중탄산 이온(CO32- 또는 HCO32-), 황산 이온(SO42-)이 있으며, 현재 이들을 능동적으로 제어할 수 있는 소재에 대한 연구가 진행되고 있다. 이에 관련한 연구는 층상이중수화물(Layered Double Hydroxide, LDH)을 이용하여 염소 이온 고정(Yoon et al., 2014; Chen et al., 2015) 및 탄산화 저항성(Duan et al., 2013)에 관한 것이 있다. | |
대부분의 자기치유 콘크리트가 주안점을 두고 있는 방안은? | 자기치유 콘크리트의 대부분은 콘크리트 내 균열부를 통해 침투하는 콘크리트 열화 유발인자의 주요 매개물질인 물이나 공기의 침투성이 증가하는 것을 억제하는 방안에 주안점을 두고 있다. 균열 너비에 따라 유체의 침투성이 무시될 수도 큰 영향을 줄 수도 있으나(Yue et al. |
Abdulgader, H. A., Kochkodan, V., and Hilal, N. (2013), Hybrid ion exchange - Pressure driven membrane processes in water treatment: A review, Separation and Purification Technology, 116, 253-264.
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Dong, B., Fang, G., Ding, W., Liu, Y., Zhang, J., Han, N., and Xing, F. (2016), Self-healing Features in Cementitious Material with Urea-formaldehyde/epoxy Microcapsules, Construction and Building Materials, 106, 608-617.
Duan, P., Chen, W., Ma, J., and Shui, Z. (2013), Influence of Layered Double Hydroxides on Microstructure and Carbonation Resistance of Sulphoaluminate Cement Concrete, Construction and Building Materials, 48, 601-609.
Fujikawa, H., and Hriayama, W. (2016), Solid-phase Extraction of Staphylococcal Enterotoxin A in Dairy Products Using an Ion Exchange Resin, Food Control, 1-6.
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