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장종호 ( Jong Ho Chang ),송학래 ( Hac Rae Song ),황인철 ( In Chul Hwang ),선우재근 ( Jae Gun Sunwoo ),배동한 ( Dong Han Bae ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.3
Acute abdominal pain during pregnancy may be urologic origin. In this report, perinephric abscess was treated by percutaneous catheter drainage until a term delivery was achieved. We have experienced a case of perinephric abscess of pregnancy and reported
철근콘크리트구조물의 중성화에 영향을 미치는 투기계수와 CO<sub>2</sub>확산계수의 관계
조봉석 ( Cho Bong Suk ),윤종기 ( Yoon Jong Kee ),이태희 ( Lee Tae Hee ),장종호 ( Chang Jong Ho ),강석표 ( Kang Suk Pyo ),김무한 ( Kim Moo Han ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.2
Among durability of concrete, the carbonation process corrodes bar makes progress slowly by the diffusions of CO<sub>2</sub> from surface of concrete. This carbonation process is affected by both the concrete factors such as W/C ratio, types of cement and aggregate, admixture types and the environmental factors such as CO<sub>2</sub> concentration, temperature, humidity and so forth. especially the carbonation process is closely related to CO<sub>2</sub> concentration and Air permeability. therefore This study is to examinis affected by relationship with Air permeability Coefficient and CO<sub>2</sub> diffusion Coefficient Have an Effect on carbonation in reinforced concrete As a results of this study, we have come to make a sense of an available correlation with Air permeability Coefficient and CO<sub>2</sub> diffusion Coefficient.
복합열화 촉진실험에 의한 철근콘크리트구조물의 부식특성에 관한 실험적 연구
조봉석(Cho Bong Suk),송민섭(Song Min Soeb),김영덕(Kim Young Duk),장종호(Chang Jong Ho),김용로(Kim Yong Ro),김무한(Kim Moo Han) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
It is recognized that reinforcement corrosion is the main distress behind the present concern regarding concrete durability. In this study, to confirm corrosion of reinforced concrete affected by thickness of cover, kinds of surface coating, measured electric potential, ratio of corrosion area, weight reduction, corrosion velocity of steel bar under environment of complex deterioration. The results showed that an increase in age also increases corrosion of steel bar. Ratio of corrosion area is largely related to ratio of weight reduction, as well, corrosion of steel bar by thickness cover is superior to 10mm thick than 20mm thick. It showed that an increase in thickness of cover prevent steel bar from deteriorating. The results of this study showed that corrosion velocity was affected by thickness of cover, kinds of surface coating. data on the development of corrosion velocity made with none, organic B, organic A, inorganic B, and inorganic A is shown.
복합열화 촉진 실험에 의한 철근콘크리트구조물의 부식특성에 관한 실험적 연구
조봉석 ( Cho Bong Suk ),송민섭 ( Song Min Soeb ),김영덕 ( Kim Young Duk ),장종호 ( Chang Jong Ho ),김용로 ( Kim Yong Ro ),김무한 ( Kim Moo Han ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.2
It is recognized that reinforcement corrosion is the main distress behind the present concern regarding concrete durability. In this study, to confirm corrosion of reinforced concrete affected by thickness of cover, kinds of surface coating, measured electric potential, ratio of corrosion area, weight reduction, corrosion velocity of steel bar under environment of complex deterioration. The results showed that an increase in age also increases corrosion of steel bar. Ratio of corrosion area is largely related to ratio of weight reduction, as well, corrosion of steel bar by thickness of cover is superior to 10mm thick than 20mm thick. It showed that an increase in thickness of cover prevent steel bar from deteriorating. The results of this study showed that corrosion velocity was affected by thickness of cover, kinds of surface coating, data on the development of corrosion velocity made with none, organic B, organic A, inorganic B, and inorganic A is shown.