http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고온 및 재하를 받은 일반 및 경량골재 콘크리트의 변형특성
이태규(Lee Tae-Gyu),김규용(Kim Gyu-Yong),미야우치 히로유키(Miyauchi Hiroyuki),민충식(Min Choong-Sic),최경철(Choe Gyeong-Cheol),박규연(Park Gyu-Yeon) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
It was very important to evaluate concrete experimentally at elevated temperature because concrete was filled with aggregate of concrete volume about 80 percent. In this study, it conducted a experiment to evaluate strain properties of normal weight and light weight concrete of 60㎫. Based on loading level of 0, 20 and 40 percent, test on thermal strain, total strain and transient creep to use Ø100×200㎜ cylinder specimen at elevated temperature. As a result, thermal strain of normal concrete was about 3 times larger than light weight concrete. And transient creep to develop as under loading was effected to change strain.
나일론섬유를 혼입한 고강도콘크리트의 열적특성에 관한 실험적 연구
이태규(Lee, Tae-Gyu),김영선(Kim, Young-Sun),이형준(Lee, Hyung-Jun),김우재(Kim, Woo-Jae),박규연(Park, Gyu-Yeon),김규용(Kim, Gyu-yong) 한국구조물진단유지관리학회 2009 한국구조물진단학회 학술발표회논문집 Vol.2009 No.2
The performance deformation of concrete can be caused by many factors such as load, thermal expansion, explosive spalling, creep at elevated temperature. Especially, many researchers were develop various preventive methods because explosive spalling were very dangerous for structure safety at first. Using fiber mixing was preferred among them for economical efficiency. However, it wasn't clear whether fiber reinforced high strength concrete had fire resistance at high temperature. Therefore, this study reviewed experimental studies on the Thermal Properties of fiber reinforced high strength concrete subject to heating and loading.
나일론섬유를 혼입한 고강도콘크리트의 열적특성에 관한 실험적 연구
이태규 ( Lee Tae-gyu ),김영선 ( Kim Young-sun ),이형준 ( Lee Hyumg-jun ),김우재 ( Kim Woo-jae ),박규연 ( Park Gyu-yeon ),김규용 ( Kim Gyu-yong ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2
The performance deformation of concrete can be caused by many factors such as load, thermal expansion, explosive spalling, creep at elevated temperature. Especially, many researchers were develop various preventive methods because explosive spalling were very dangerous for structure safety at first. Using fiber mixing was preferred among them for economical efficiency. However, it wasn’t clear whether fiber reinforced high strength concrete had fire resistance at high temperature. Therefore, this study reviewed experimental studies on the Thermal Properties of fiber reinforced high strength concrete subject to heating and loading.
주목 식물세포(Taxus chinensis) 배양 유래 타르 성분 동정 및 정량
김건중 ( Gun Joong Kim ),박규연 ( Gyu Yeon Park ),김진현 ( Jin Hyun Kim ) 한국미생물생명공학회(구 한국산업미생물학회) 2013 한국미생물·생명공학회지 Vol.41 No.3
In this study, the tar compounds derived from the plant cell cultures of Taxus chinensis were first identified and then quantified via gas chromatography/mass spectrometry (GC/MS) and gas chromatography (GC). 2-Picoline, 2,5-xylenol, acenaphthene, 1-methylnaphthalene and o-xylene were found to be the major tar compounds by biomass. These compounds were identified and confirmed by comparing their retention times with those of authentic compounds. Each compound also spiked with the pure standard. The contents of 2-picoline, 2,5-xylenol, acenaphthene, 1-methylnaphthalene, and o-xylene in biomass were 0.2512, 0.1586, 0.1240, 0.0942 and 0.0525 wt%, respectively. Liquid-liquid extraction and adsorbent treatment were able to remove 42% and 94% of the tars from biomass, respectivly. After hexane precipitation, all of the tars were perfectly removed.
섬유혼입율에 따른 순환골재 콘크리트의 열팽창 변형 및 잔존강도에 관한 실험적 연구
김영선(Kim Young-Sun),이태규(Lee Tae-Gyu),김규용(Kim Gyu-Yong),박규연(Park Gyu-Yeon) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.8
Limited data on the mechanical properties of recycled aggregate concrete with high temperature are available from previous studies. The objective of this study is to shed light on the thermal and mechanical properties of concrete with recycled fine aggregate replacement and fiber content after exposure to elevated temperatures (for 1hour by ISO-834). In particular, the results of the effects of recycled fine aggregate and fiber content on the thermal strain, compressive strength, elastic modulus and spalling properties curve of concrete exposure to high temperature are discussed. The results of this study are as follows. (1) At the room temperature, compressive strength and elastic modulus of concrete with recycled fine aggregate replacement and fiber content showed similar trend with concrete with natural fine aggregate. (2) Thermal strain of recycled aggregate concrete was around 20% lower than natural aggregate concrete. However, only thermal strain of concrete with 0.1Vol.% of nylon fiber was similar with thermal strain of natural aggregate concrete. (3) Residual compressive strength of recycled aggregate concrete was similar with natural aggregate concrete, and residual elastic modulus about 3% higher.