In this study, the chemical deformation of cement pastes was determined by chemical analysis. X-ray diffraction equipment was used to investigate the chemical transformation. The decrease of ettringite and the collapse of gypsum were confirmed and then the calcium hydroxide gradually decreased.

• 허영선(한국건설기술연구원 화재안전연구소, 수석연구원) | Heo, Young Sun
• 이건철(한국교통대학교 건축학부, 부교수) | Lee, Gun Cheol
• 신기돈(한국교통대학교 건축공학과, 석사과정) | Shin, Ki Don
• 지우람(한국교통대학교 건축공학과, 석사과정) | Ji, Woo Ram