Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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Microstructure Properties of Cement Matrix Exposed to High Temperature

고온에 노출 된 시멘트 매트릭스의 미세구조 특성

  • Lee, Gun-Young ;
  • Lee, Gun-Cheol ;
  • Choi, Jung-Gu ;
  • Gao, Shan ;
  • Heo, Young-Sun
  • 이건영 (한국교통대학교, 건축공학과 대학원) ;
  • 이건철 (한국교통대학교, 건축공학과) ;
  • 최중구 (한국교통대학교, 건축공학과 대학원) ;
  • 高 (한국교통대학교, 건축공학과 대학원) ;
  • 山허영선 (한국건설기술연구원 화재안전연구센터)
  • Published : 2015.11.14
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Abstract

To secure fundamental materials for the performance change in concrete structure damaged by fire, this study analyzed SEM and XRD of hardened cement depending on high temperature conditions. As a result, at more than 200℃, SEM and XRD were not observed because of dehydration of Ettringite; at more than 500℃, calcium hydroxide was rapidly decomposed; at more than 700℃, calcium oxide was found; at 1000℃, the highest peak point appeared.

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