This experiment can maximize the decline of the heat on steel structure by using the magnesium hydroxide and aluminum hydroxide which generally used to resistant or retardant. These materials can delay a temperature rise due to the generation of vapors around the fire resistive covering, when reacting with heat by a creating moisture. Therefore, applicability of the fire resistance mortar used magnesium hydroxide and aluminum hydroxide was studied and experimented. As a result, in case of the workability is satisfied with the condition of site, but in case of the bonding strength is not satisfied with the standard with fire resistance mortar.

• 김홍기(한양대학교 건설 환경공학과 콘크리트전공, 박사과정) | Kim, Hong-Gi
• 송일현(한양대학교 건설 환경공학과 콘크리트전공, 박사수료) | Song, Il-Hyun
• 김은상(한양대학교 건설 환경공학과 콘크리트전공, 박사과정) | Kim, Eun-Sang
• 구민욱(한양대학교 건설 환경공학과 콘크리트전공, 석사과정) | Koo, Min-Wook
• 류재석(한양대학교 건설 환경공학과 콘크리트전공,정교수) | Ryou, Jae-Seok