Effects of Ca/Si Molar Ratio on the Interatomic Distance of Synthetic Calcium Silicate Hydrate (C-S-H) at Elevated Temperature

고온 가열시 Ca/Si 몰비율에 따른 합성 칼슘 실리케이트 수화물(C-S-H)의 구성 원자간 거리 변화

Calcium silicate hydrate(C-S-H) is the principal binding phase that controls the strength and thermal stability of concrete. However, the effects of high temperature on the lattice structure and interatomic structure of C-S-H remains poorly understood due to its nanocrystallinity. This study aims to elucidate the change in interatomic distance of synthetic C-S-H with different Ca/Si molar ratios after exposure to high temperature via high energy X-ray scattering experiment which is a powerful analytical tool for amorphous materials.