http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
FAX / DATA / 음성 다기능 모뎀 설계와 기능 실현
김용로,유선구,유흥균 ( Yong Ro Kim,Sun Gu Yu,Heung Gyoon Ryu ) 충북대학교 산업과학기술연구소 1996 산업과학기술연구 논문집 Vol.10 No.1
Abstract_Roman In these days, as the technology af Computer and Cornmunication increased, so using PSTN communication service have changed day by days. Existing Computing Environment have the tendency to changing from text to voice and visual, so users d
산업부산물을 다량 사용한 콘크리트의 압축강도 발현 특성 검토
김용로,송영찬,박종호,정용,Kim, Yong-Ro,Song, Young-Chan,Park, Jong-Ho,Jeong, Yong 한국건설순환자원학회 2011 한국건설순환자원학회지 Vol.6 No.2
본 연구에서는 산업부산물을 다량으로 사용하는 콘크리트의 건설현장의 구조체 적용을 위한 기초자료를 확보하기 위해 혼화재를 다량 사용한 콘크리트의 압축강도 발현 특성을 검토하였다. 이를 위해 본 연구에서는 일반강도 영역을 대상으로 하여 단위결합재량($310{\sim}410kg/m^3$), 혼화재 치환율(70~90%), 단위수량($140{\sim}150kg/m^3$) 및 양생온도에 따른 압축강도 발현 특성을 검토하였으며, 실제 부재에서의 특성을 검토하기 위해 $2,000{\times}2,000{\times}2,000mm$ 크기의 모의부재를 제작한 후, 수화발열 특성 및 압축강도 발현 특성을 검토하였다. 검토 결과를 토대로, 본 연구에서 검토한 산업부산물을 다량 사용한 콘크리트의 경우 대기온도 평균 약 $13^{\circ}C$ 이상의 양생온도 조건에서는 재령 28일에서 24MPa 이상의 강도를 확보할 수 있는 것으로 나타나, 건설현장에서 골조용 콘크리트로 적용이 가능할 것으로 판단된다. In this study, it was investigated compressive strength generation of concrete using high volume mineral admixture obtaining fundamental data for the application of concrete structure in construction field. For this, it was evaluated compressive strength with unit binder contents($310{\sim}410kg/m^3$), replacement ratio of mineral admixture(70~90%), unit water contents($140{\sim}150kg/m^3$) and curing temperature in the normal strength range. Also, after producing mock-up structure, hydration heat and compressive strength generation was evaluated to examine properties in the concrete member. In case of concrete using a large amount of industrial byproducts which was reviewed in this study, it is possible to secure compressive strength more than 24MPa at age 28days with about $13^{\circ}C$ ambient temperature of curing condition and that is considered to be applied to structure at construction site.
잠열성 결합재를 사용한 저발열 콘크리트의 내구성에 관한 실험적 연구
김용로(Kim Yong-Ro),김욱종(Kim Ook-Jong),김도수(Kim Do-Su),길배수(Khil Bae-Su),윤길호(Yoon Kil-Ho),한승구(Han Seung-Goo) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
Concrete structures that heat of hydration control is necessary according to construction increase of skyscraper and supersize concrete structure are increasing. Thereupon, our study group studied applying PCM (Phase Change Material) as heat of hydration reduction technology for concrete, and developed a LHB(Latent Heat Binder) as hydration heat reducing admixtures. And then, it was examined and reported fundamental properties of concrete using LHB. In this study, it is presented the fundamental data for application of concrete using the developed hydration heat reduction technology after evaluating durability of low heat concrete using LHB.
플라이애시 및 고로슬래그미분말 대체율에 따른 콘크리트의 염화물이온 침투특성에 관한 실험적 연구
김갑수(Kim Kab Soo),나철성(Na Chul Sung),김재환(Kim Jae Hwan),김용로(Kim Yong Ro),유재철(Yu Jea Chul),김무한(Kim Moo Han) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Chloride ions are considered to be the major cause of steel corrosion in concrete structures exposed to seashore environments and also penneation of chloride is controlled by chloride diffusion. Therefore, the study on chloride diffusion of concrete have been done so far by many researchers. In this study, to examine the chloride penetration properties of concrete using fly-ash and blast-furnace slag powder as replacements of cement, it is compared and investigated the replacement ratio of fly-ash and blast-furnace slag powder with each 3 levels. Therefore, it is intended to grasp the chloride penetration properties of concrete including effects of W/B ratio and age, as other mix factors.