Ulsan National Institute of Science and Technology · Engineering
Professor Jae Eun Oh's research lab specializes in cementitious materials and sustainable construction materials, with a focus on the hydration mechanisms, chloride binding behavior, and pore structure evolution in alkali-activated materials and ground granulated blast-furnace slag (GGBFS). The lab investigates the role of key phases such as monosulfoaluminate and C-A-S-H gels in anion exchange and immobilization, particularly under aggressive environments like seawater exposure. Using advanced characterization techniques like STXM, XANES, and XRD, the lab explores the long-term durability and performance of alternative cements, aiming to develop eco-friendly and durable construction materials.
Figures are computed from collected data and may differ slightly.
This study aimed to investigate the chloride-binding capacity of alkali-activated fly ash (denoted as FSW) and slag (denoted as SSW) samples and their synthesized Cl-bearing phases, which are capable of binding and immobilizing chloride when seawater is used as the mixing water. This study also examined the progressive changes in the pore structures of the FSW and SSW samples over time. The results show that the SSW sample is significantly more effective in the uptake of chloride ions compared t
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