최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기한국구조물진단유지관리공학회 논문집 = Journal of the Korea Institute for Structural Maintenance and Inspection, v.23 no.6, 2019년, pp.45 - 52
Steel corrosion due to carbonation in RC (Reinforced Concrete) structures easily occurs in urban cities with high CO2 concentration. RC structures are always subjected to external loading with various boundary conditions. The induced stress level causes changes in diffusion of harmful ion like CO2. ...
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
콘크리트의 탄산화는 무엇인가? | , 2017). 탄산화는 외부로부터 이산화탄소가 유입되고 이로 인해 내부 공극수의 pH가 감소하여 부식이 발생하기 쉬운 열화기구를 의미한다(Ishida and Maekawa, 2000). 탄산화 진행의 정량화에 대해서는 많은 연구가 진행되어 왔다. | |
콘크리트 구조물이 공용 중 응력의 영향을 받는 이유는 무엇인가? | 콘크리트 구조물은 다양한 노출환경에서 사용되고 있으며, 내적, 외적인 구속조건이 항상 있으므로 공용 중 응력의 영향을 받게 된다. 최근 들어 대도심지의 이산화탄소 농도가 증가하고 있으며, 이는 콘크리트의 탄산화에 따른 철근 부식 가능성이 증가되고 있다(Yang et al. | |
일반적으로 사용하중 수준의 압축응력이 발생할 경우 이온과 가스의 침투가 감소하는 원인은 무엇인가? | , 2005). 이는 물질이동의 주된 경로인 유효공극이 감소하기 때문이며, 콘크리트 내부의 열화 인자의 침투는 인장응력이 발생할 경우 선형적으로 증가하는 것으로 알려져 있다(Choinska et al., 2007; Tegguer et al. |
Banthia, N., Biparva, A., and Mindess, S. (2005), Permeability of concrete under stress, Cement and Concrete Research, 35(9), 1651-1655.
Bae, Y. W., and Lim, N. G. (2012), Resistance of chloride penetration of fiber reinforced concrete under loading condition, Journal of the Architectural Institute of Korea Structure & Construction, 28, 2867-2874.
CEB. (1997), New Approach to Durability Design, 96-102.
Choinska, M., Khelidj, A., Chatzigeorgiou, G., and Pijaudier-Cabot, G. (2007), Effects and interactions of temperature and stress-level related damage on permeability of concrete, Cement and Concrete Research, 37(1), 79-88.
Cho, S. J., Yoon, Y. S., and Kwon, S. J. (2018), Carbonation Behavior of GGBFS-based Concrete with Cold Joint Considering Curing Period, Journal of the Korean Recycled Construction Resources Institute, 6(4), 259-266.
Defaux, G., Pendola, M., and Sudret, B. (2006), Using spatial reliability in the probabilistic study of concrete structures: The example of a reinforced concrete beam subjected to carbonation inducting corrosion, Journal de Physique IV, 136(1), 243-253.
Duprat, F. and Sellier, A. (2006), Probabilistic approach to corrosion risk due to carbonation via an adaptive response surface method, Probabilistic Engineering Mechanics, 21(3), 207-216.
EN-1991. (2000), Eurocode 1: Basis of Design and Actions on Structures, European Committee for Standardization(Comite Europeen de Normalisation, CEN).
Ecoseoul. (2013), Map of CO2 concentrations in Seoul. Available at: http://www.ecoseoul.or.kr/xe/?document_srl1893070.
Hwang, S. H., Yoon, Y. S., and Kwon, S. J. (2019), Carbonation Behavior Evaluation of OPC Concrete Considering Effect of Aging and Loading Conditions, Journal of the Korea Institute for Structural Maintenance and Inspection, 23(1), 122-129.
Izumi, I., Kita, D., and Maeda, H. (1986), Carbonation, Kibo press Publication, Tokyo, 35-88.
Ishida, T., and Maekawa, K. (2000), Modeling of PH profile in pore water based on mass transport and chemical equilibrium theory, Doboku Gakkai Ronbunshu, 2000(648), 203-215.
Koh,T.- H., Kim, M.- K., Yang, K.- H., Yoon, Y.- S., and Kwon, S.-J. (2019), Service Life Evaluation of RC T-girder under Carbonation Considering Cold joint and Loading Effects, Construction and Building Materials, 229, 106-116.
Kwon, S. J., Song, H. W., Byun, K. J., and Lee, S. H. (2004), Analysis of Carbonation Behavior of Cracked Concrete in Early - Age, Journal of The Korean Society of Civil Engineers, 24(5A), 1011-1022.
Kwon, S. J., Park, S. S., Nam, S. H., and Cho, H. J. (2007), A Study on Survey of Carbonation for Sound, Cracked, and Joint Concrete in RC Column in Metropolitan City, Journal of the Korea Institute for Structural Maintenance and Inspection, 11(3), 116-122.
KCI. (2012), Concrete Specification- Durability Part, Korea Concrete Institute, Seoul, 637-672.
Kwon, S. J., Lee, B. J., and Kim, Y. Y. (2014), Concrete mix design for service life of RC structures under carbonation using genetic algorithm, Advances in Materials Science and Engineering, 2014, 1-13.
Maekawa, K., Ishida, T., and Kishi, T. (2008), Multi-Scale Modeling of Structural Concrete, Taylor & Francis, Florida, 86-105.
Papadakis, V. G., Vayenas, C. G., and Fardis, M. N. (1991), Physical and chemical characteristics affecting the durability of concrete, Materials Journal, 88(2), 186-196.
Song, H. W., and Kwon, S. J. (2007), Permeability characteristics of carbonated concrete considering capillary pore structure, Cement and Concrete Research, 37(6), 909-915.
Tegguer, A. D., Bonnet, S., Khelidj, A., and Baroghel-Bouny, V. (2013), Effect of uniaxial compressive loading on gas permeability and chloride diffusion coefficient of concrete and their relationship, Cement and Concrete Research, 52, 131-139.
Yang, K. H., Song, J. K., and Song, K. I. (2013), Assessment of CO2 reduction of alkali-activated concrete, Journal of Cleaner Production, 39, 265-272.
Yang, H. M., Lee, H. S., Yang, K. H., Ismail, M. A., and Kwon, S. J. (2018), Time and cold joint effect on chloride diffusion in concrete containing GGBFS under various loading conditions, Construction and Building Materials, 167, 739-748.
Yang, K. H., Mun, J. H., Yoon, Y. S., and Kwon, S. J. (2018), Effects of loading conditions and cold joint on service life against chloride ingress, Computers and Concrete, 22(3), 319-326.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.