Tohoku University · 공학
요아딩 교수의 연구실은 고강도·고 ductility를 동시에 확보한 엔지니어드 시멘티아스 컴posites(EGC, PE-ECC 등)의 설계 및 거동 특성에 중점을 두고 있으며, 특히 저비율 섬유 혼입으로도 뛰어난 균열 저항성과 연성 발현을 달성하는 지속가능한 콘크리트 기반 재료 개발을 핵심 과제로 삼고 있습니다. 음향 에미션 모니터링, 인터페이스 상호작용, 생체적합성 나노플랫폼 등 다양한 실험 기법과 설계 이론을 융합한 다스케일 연구를 수행하고 있습니다. 특히 생체 임플란트 감염 치료와 조직 재생을 동시에 고려한 반응성 나노소재 개발도 활발히 진행 중입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The rapid development of infrastructure imposes high requirements on the performances of building materials especially on strength and ductility. The combination of high tensile strain capacity (>2%) and high strength (>80 MPa) to produce high strength engineered cementitious composites (HS-ECC) can be regarded as a potential and competitive option for structural application. The present paper comprehensively reviews some of the most important properties of HS-ECC from material scale to structur
Systematical research was implemented to explore the impacts of fiber reinforcement index VfLf/df (i.e., the product of fiber volume Vf and fiber aspect ratio Lf/df) on the energy dissipation characteristics including strain energy density and fracture energy, of polyethylene fiber-reinforced engineered cementitious composites (PE-ECC) with compressive strength varying from normal to high. Six VfLf/df values (i.e., 5, 7.5, 9, 10, 15, and 18) and five water/binder ratios (i.e., 0.14, 0.16, 0.18,
Biomaterial-associated bacterial infection is one of the major causes of implant failure. The treatment of such an implant infection typically requires the elimination of bacteria and acceleration of tissue regeneration around implants simultaneously. To address this issue, an ideal implanted material should have the dual functions of bacterial infection therapy and tissue regeneration at the same time. Herein, an enzyme-responsive nanoplatform was fabricated in order to treat implant-associated
This paper investigates the efficiency of acoustic emission (AE) technique for monitoring and assessing the bond-slip behavior and damage characteristics of deformed rebar embedded in hybrid fiber reinforced engineered cementitious composites (ECC). A series of pull-out tests were conducted on 48 prism samples with variable rebar diameters (14 mm, 20 mm, and 25 mm), embedded length (3d, 4d and 5d), and cover thickness (2.5d, 4d, 5d and 6d). Two AE sensors, attached on ECC surface and rebar surfa
Adding short steel fibers into slag-based geopolymer mortar and concrete is an effective method to enhance their mechanical properties. The fracture properties of steel fiber-reinforced slag-based geopolymer concrete/mortar (SGC/SGM) and unreinforced control samples were compared through three-point bending (TPB) tests. The influences of steel fiber volume contents (1.0%, 1.5% and 2.0%) on the fracture properties of SGC and SGM were studied. Load-midspan deflection (<i>P-δ</i>) curves and load-c
