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다양한 온도 환경에서의 RC-LFS 기반 수경성 복합 재료의 수화발열 특성
이무 ( Li Mao ),김진만 ( Kim Jin-man ),최선미 ( Choi Sun-mi ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
Ambient temperature has a direct impact on the hydraulic process. Though ㅡany experiments have been processed in order to investigate the hydration properties under the various ambient temperature of OPC, there are not reported about aluminate-based composite. This presentation is composed of contents on the experimental investigation of the hydration heat of pulverized rapid cooling ladle furnace slag based composite. Based on the experimental outcomes, gypsum can decrease the hydration heat dramatically and lower ambient temperature has a negative effect on accelerated the hydraulic process.
A Numerical Method for Macro-fiber Distribution and Orientation In Hardened Concrete Components
이무 ( Li Mao ),김진만 ( Kim Jin-man ),최홍범 ( Choi Hong-beom ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2
Fiber reinforced concrete as a construction material has been widely used. Fibers, as the reinforced component, the physical properties and the distribution influence the engineering properties of the composite. To illustrate the engineering properties, fiber distribution and orientation are necessary. Steel fibers can be easily captured by X-ray, but it is difficult them to express being numerical because they don’t show as perfect circular shape on the grinding face. To get the more exact information for this, the numerical method for the orientation and distribution of fibers have to be more elaborately. This paper presents a possible method which makes the calculate for orientation possible.
고로슬래그 혼입율에 따른 CA계 기포콘크리트의 강도특성
유재성 ( Yu Jae-seong ),최선미 ( Choi Sun-mi ),최홍범 ( Choi Hong-bum ),이무 ( Li Mao ),김진만 ( Kim Jin-man ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2
The aim of this research was evaluating strength characteristics of foamed concrete using Ladle Furnace slag with GGBFs. For all mixtures, because of the early setting and strength development, it was possible to deform the formwork and measure the compressive strength within 3 hours.