Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Fire Risk Comparison of Building Flooring Materials by External Heat Flux

건축용 바닥재의 외부복사열에 의한 화재위험성 비교 연구

  • Park, Youngju (Department of Fire & Emergency Management, Kangwon National University) ;
  • Kim, Youngtak (Professional Graduate School of Disaster Prevention, Kangwon National University)
  • 박영주 (강원대학교 소방방재학부) ;
  • 김영탁 (강원대학교 방재전문대학원)
  • Received : 2017.02.20
  • Accepted : 2017.09.26
  • Published : 2017.10.31
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Abstract

In this study, we have performed the Cone Calorimeter test in accordance with ISO 5660-1 to check the combustion characteristics of building flooring materials. The fire risk of these materials were evaluated by construction code, KFI criteria and standards of flame retardant performance. When samples exposed to external heat flux, all samples consumed a lot of Oxygen for a long time. So heat release from sample burning continued so long. And also all samples produced so much smoke. Even though a few samples were satisfied with only peak heat release rate criteria, all 8 samples were not satisfied with criteria of peak heat release rate and total heat released together. The results of 5 min total heat released were $15.9MJ/m^2{\sim}5.9MJ/m^2$. It menas the results are more than 2~6 times higher than the criteria. The results of 10 min total heat released were $30.1MJ/m^2{\sim}100.8MJ/m^2$. It means the results are more than 3~12 times higher than the criteria. 6 of 8 samples were not satisfied with Dm.corr.(corrected maximum smoke density) criteria. The building flooring materials which we used for this test ignited very fast and the burning continued so long. It means these samples are susceptible to fire.

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References

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