Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Thermal Property of Geopolymer Ceramics Based on Fly Ash-Blast Furnace Slag

플라이애시-고로슬래그 기반 지오폴리머 세라믹스의 열적특성

  • Kim, Jin-Ho (Department of Nano Applied Engineering, Kangwon National University) ;
  • Nam, In-Tak (Department of Nano Applied Engineering, Kangwon National University) ;
  • Park, Hyun (Department of Advanced Materials Engineering, Kangwon National University) ;
  • Kim, Kyung-Nam (Department of Advanced Materials Engineering, Kangwon National University)
  • 김진호 (강원대학교 나노응용공학과) ;
  • 남인탁 (강원대학교 나노응용공학과) ;
  • 박현 (강원대학교 신소재공학과) ;
  • 김경남 (강원대학교 신소재공학과)
  • Received : 2016.08.05
  • Accepted : 2016.08.30
  • Published : 2016.10.27
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Abstract

Geopolymers have many advantages over Portland cement, including energy efficiency, reduced greenhouse gas emissions, high strength at early age and improved thermal resistance. Alkali activated geopolymers made from waste materials such as fly ash or blast furnace slag are particularly advantageous because of their environmental sustainability and low cost. However, their durability and functionality remain subjects for further study. Geopolymer materials can be used in various applications such as fire and heat resistant fiber composites, sealants, concretes, ceramics, etc., depending on the chemical composition of the source materials and the activators. In this study, we investigated the thermal properties and microstructure of fly ash and blast furnace slag based geopolymers in order to develop eco-friendly construction materials with excellent energy efficiency, sound insulation properties and good heat resistance. With different curing times, specimens of various compositions were investigated in terms of compressive strength, X-ray diffraction, thermal property and microstructure. In addition, we investigated changes in X-ray diffraction and microstructure for geopolymers exposed to $1,000^{\circ}C$ heat.

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References

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