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X-선 회절 분석을 통한 CO<sub>2</sub> 나노버블수 침지 전기로 슬래그 촉진 에이징 검토
임창민 ( Lim Chang-min ),임건우 ( Im Geon-woo ),김영민 ( Kim Young-min ),이건철 ( Lee Gun-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
In this study, the steel slag was immersed in CO<sub>2</sub> nano-bubble water by Electric arc funace it was accelerated aging was reviewed through XRD analysis. The main minerals of the electric furnace oxidized slag were spinel and gehlenite, and there was no change with the number of CO<sub>2</sub> nano-bubbles. Minerals such as larnite, calcio-olivine, agnetite, calcite, and spinel were distributed in electrically reduced slag, and the content of calcite more than doubled with CO<sub>2</sub> nano-bubble immersion. Therefore, it is judged that the acceleration aging of Electric arc funace reduced slag is effective according to the immersion of CO<sub>2</sub> nano-bubble.
초고분말 IGCC 플라이애시가 혼입된 프리팩트 그라우팅 몰드의 초기 강도 특성
임창민 ( Lim Chang-min ),권현우 ( Kwon Hyun-woo ),김영민 ( Kim Young-min ),이건철 ( Lee Gun Chul ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
In this study, the Prepacked infilling mortar to which IGCC Ultra-Fine Fly Ash was added was evaluated when grouting aggregates. Efflux, Consistency, and Compressive Strength were measured, and it was found to have high fluidity when mixing IGCC Ultra-Fine Fly Ash, but the initial compressive strength was low
CO<sub>2</sub> 나노버블 에이징 시간에 따른 전로슬래그의 화학적 특성
임창민 ( Lim Chang-min ),임건우 ( Im Geon-woo ),김영민 ( Kim Young-min ),이건철 ( Lee Gun-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2
In this study, the chemical composition of converter slag according to CO<sub>2</sub> nanobubble promotion aging time was examined. The CO<sub>2</sub> nanobubble water immersion time was 0, 12, 24, 36, 48 hours, and then dried and pulverized to perform XRD analysis. As a result, the longer the sample was immersed in CO<sub>2</sub> nanobubble water, the higher the amount of calcite produced, and the change after 36 hours was minimal.
유체해석 프로그램을 이용한 골재의 입자크기 및 입도, 구성위치에 따른 배수층의 특성 평가
임창민 ( Lim Chang-min ),권현우 ( Kwon Hyun-woo ),김영민 ( Kim Young-min ),조도영 ( Cho Do-young ),이건철 ( Lee Gun-cheol ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.2
Due to recent climate abnormalities, the form of rainfall is changing to localized torrential rains. Localized torrential rains cause flooding in urban areas. In addition, in various industrial fields, there are cases where materials necessary for the process are kept outdoors, and damage from material loss and flooding of stockyards occurs during heavy rain. Accordingly, it is necessary to introduce a drainage layer where flooding is expected. This drainage layer places the aggregate inside and allows rainwater to penetrate and drain into the voids between the aggregates. However, the amount of voids differs according to the particle size distribution and particle size of the aggregate, and the drainage performance varies according to the compositional location of the aggregate. Therefore, in this study, the drainage characteristics according to the particle size, particle size, and compositional location of aggregates are analyzed using a fluid analysis program.