Dr. Yoonjung Han is a Postdoctoral Research Scientist at Columbia University, where her research focuses on hydration behavior, dissolution kinetics, and thermodynamic and kinetic modeling of cementitious systems. Her doctoral research examined pozzolanic reaction mechanisms and hydration simulation, including the dissolution kinetics of silica fume and portlandite and the development of computational models for pozzolanic reaction. In her current postdoctoral research, she has broadened her expertise to magnesium-based cement and mineralized systems, building additional strengths in reaction kinetics, experimental characterization, and modeling. She also has teaching and mentoring experience through her graduate and postdoctoral appointments.