Young-Soo Yoon
고려대학교 건설환경공학부 · 공학
이 교수의 연구실은 콘크리트의 거동과 내구성을 향상시키기 위한 첨단 시멘트 기반 재료 개발에 주력하고 있습니다. 특히 고강도경량 concrete(HSLC), 초고강도철섬유보강 concrete(UHPFRC), 그리고 탄소나노튜브나 팔라듐 촉매를 활용한 첨단 복합재료의 기계적 거동과 전기화학적 성능을 연구하고 있습니다. 연구는 구조물의 내구성, 강도, 연성 향상뿐 아니라 지속가능한 에너지 기술과도 연계되어 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
This study conducted a comprehensive investigation into concrete creep. First, the creep mechanisms and parameters of high-strength lightweight concrete (HSLC) were introduced. Then, creep characteristics of high-strength concrete (HSC) and lightweight concrete (LWC) were analyzed and reviewed. It has been shown that HSC can improve creep resistance by making the cement matrix dense through incorporation of admixtures such as silica fume or changing the curing conditions. In addition, the porous
This study evaluated the effects of volume fraction, aspect ratio, and shape of steel fibers on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC) and the structural behavior of reinforced (R-) UHPFRC beams. The tensile strength and energy absorption capacity of ultra-high-performance concrete (UHPC) are improved by adding steel fibers and increasing its volume contents by up to 3.0 %. Compared with short straight steel fiber, medium-length straight and twiste
Recently interest in lightweight concrete (LWC) has increased for its cost effectiveness and design reduction, however it has low resistance to external forces. Carbon nanotube (CNT) was incorporated to overcome this disadvantage and achieve high-strength in LWC. The structural response of CNT reinforced high-strength lightweight concrete (HSLC) beams was investigated considering specimen size, tensile reinforcement ratio, and stirrup spacing. As the tensile reinforcement ratio increased from 0.
The asymptotic conformal invariance of some SU(2) model and Standard Model in curved space–time are investigated. We have examined the conditions for asymptotic conformal invariance for these models numerically.
