http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
콘크리트의 염화물이온 확산계수 및 내구수명에 미치는 골재의 영향
신종만(Shin Jong-Man),전봉민(Jeon Bong-Min),박동천(Park Dong-Cheon),오상균(Oh Sang-Gyun) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
Recently, many buildings are constructed around marine environment because of the excellent landscape and the good view. therefore, it is increased the damage as a chloride from the sea. For this reason, many researches of chloride ion penetration have been conducted. but there is no study about the effect of aggregate. In this study, the effect on chloride ion diffusion coefficient and the durability of concrete was investigated along with the change of the grading. From the results, the effect of aggregate on chloride ion diffusion coefficient and the durability of concrete is too little to evaluate it. and diffusion coefficient for steady state was evaluated as low as 1/10 of that for non-steady state. The future direction of this study will be one that estimate the effect of aggregate on chloride diffusion coefficient under low W/C.
단면 수복재용 폴리머 시멘트 모르타르의 염화물 이온 침투 저항성 측정 및 염화물 이온 확산에 관한 해석
박재홍(Park Jae-Hong),김찬주(Kim Chan-Ju),전봉민(Jeon Bong-Min),오상균(Oh Sang-Gyun),박동천(Park Dong-Cheon) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
The chloride ion migration coefficient of polymer modified cement mortar (PCM) used as patching repair materials to the deteriorated RC structure was tested by NT BUILD 492 method. To evaluate performance of repaired section against incoming Chloride Ion, 2D-numerical analysis model (FEM) was developed. The diffusion coefficient of chloride ion decreased in proportion to the polymer cement ratio. It became clear through the analysis of FEM model that the performance change over time after repair depend on the removal range of retrograded concrete and the time of repair application.