- Volume 24 Issue 2
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A identification of sprayed fire-resistive materials by near-infrared spectroscopy
근적외선 분광 분석법을 이용한 내화뿜칠재 일치성분석
- Cho, Nam-Wook (Korea Institute of Construction Technology) ;
- Shin, Hyun-Jun (Korea Institute of Construction Technology) ;
- Cho, Won-Bo (College of Pharmacy, Dongduck Women's University) ;
- Lee, Seong-Hun (College of Pharmacy, Dongduck Women's University) ;
- Rie, Dong-Ho (Fire Disaster Prevention Research Center-University of Incheon) ;
- Kim, Hyo-Jin (College of Pharmacy, Dongduck Women's University)
- 조남욱 (한국건설기술연구원) ;
- 신현준 (한국건설기술연구원) ;
- 조원보 (동덕여자대학교 약학과) ;
- 이성훈 (동덕여자대학교 약학과) ;
- 이동호 (인천대학교 소방방재연구센터) ;
- 김효진 (동덕여자대학교 약학과)
- Received : 2010.11.22
- Accepted : 2011.02.17
- Published : 2011.04.25
To protect the steel structure in a high story buildings from fire, the sprayed fire-resistive materials are applied during the construction. Current standard methods to check the quality of sprayed fire-resistive materials are real fire test in lab, which take a long time (several weeks) and expensive. In this study, a simple analytical method to check the quality of sprayed fire-resistive materials is developed using Near Infrared Spectroscopy (NIR). Total 9 kinds of sprayed fire-resisted materials and 3 kinds of normal sprayed material sets were used for the analysis. Each set of materials was 50 to 100 samples. Samples are grinded and make a fine powder. The spectral data acquisition was carried out using FT-NIR spectrometer with a integrating sphere. NIR methods successfully identify the sprayed fire resistive materials by a principle component analysis (PCA) after a vector normalization (SNV) pretreatment.
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