Geopolymer has recently emerged as an environmentally sustainable material considered to be an alternative to conventional Portland cement. Current study exhibits and discusses the results of experiment on the alteration in mechanical strength of fly ash-based geopolymer mortar activated by alkaline solution with three different sodium hydroxide solution concentrations (etc 10M, 14M and 18M) after exposure to elevated temperatures ranging from 100oC to 1000oC. Thegeopolymermotarexhibitedits strength increase after exposure at 100oC or 200oC ,followed bythe considerable strength loss in strength between 300oC and 700oC. However, the mortar strength rose slightly after exposure to temperature range from 800oC to 1000oC due to the viscous sintering process.

• Tai Tran-Thanh(영남대학교 건설시스템공학과 박사과정) | 트라탄타이
• Tuan Le-Anh(영남대학교 건설시스템공학과, 공학박사) | 이두안
• Kwon Hyug-Moon(영남대학교 건설시스템공학과 교수) | 권혁문