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NTIS 바로가기한국구조물진단유지관리공학회 논문집 = Journal of the Korea Institute for Structural Maintenance and Inspection, v.24 no.1, 2020년, pp.24 - 34
서기영 (HK 이앤씨) , 김태완 (부산대학교 토목공학과) , 김성도 (경성대학교 토목공학과)
This research is a study on the characteristics of OPC-slag cement using nano-silica solution (NSS) with water-weight substitution method. The new replacement method is a fundamental step to study the behavior of cement with higher NSS replacement rates than previous studies. NSS was replaced by 10%...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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급격한 유동성의 저하를 해결할 수 있는 제시된 방법은 무엇인가? | 급격한 유동성의 저하는 나노 입자의 불균질한 분 산 또는 뭉침, 다짐불량, 시험체 내부의 공극 발생 등의 결함 으로 인해 역학적 및 내구성능을 저하시키는 원인이 된다. 이 러한 문제를 해결하기 위해 추가적인 배합수의 투입 또는 혼 화제(superplacitizer)의 사용량 증가 등의 방법이 제시되었다 (Najigivi et al., 2013; Senff et al. | |
시멘트 또는 콘크리트에서 나노 입자의 효과는 무엇인가? | , 2014). 많은 선행연구로부터 시멘 트 또는 콘크리트에서 나노 입자의 효과는 포졸란 반응 (pozzolanic reaction), 핵생성효과(nucleation effect) 그리고 충전효과(filler effect)로 밝혀졌다(Chithra et al., 2016; Xu et al. | |
나노 크기의 미세 한 입자가급격한 유동성 저하를 유발하는 이유는 무엇인가? | 그러나 나노 입자의 사용은 시멘트 또는 콘크리트에 몇 가 지 문제점을 확인할 수 있었다. 대표적으로 나노 크기의 미세 한 입자는 높은 비표면적으로 인해 급격한 유동성의 저하를 유발한다. 급격한 유동성의 저하는 나노 입자의 불균질한 분 산 또는 뭉침, 다짐불량, 시험체 내부의 공극 발생 등의 결함 으로 인해 역학적 및 내구성능을 저하시키는 원인이 된다. |
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