A identification of sprayed fire-resistive materials by near-infrared spectroscopy

조남욱; 김효진; 신현준; 조원보; 이성훈; 이동호

doi:10.5806/AST.2011.24.2.085

오늘 하루 그만보기

P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

e-Submission

Vol.24, No.2

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A identification of sprayed fire-resistive materials by near-infrared spectroscopy

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

2011, v.24 no.2, pp.85-93

https://doi.org/10.5806/AST.2011.24.2.085

& (2011). A identification of sprayed fire-resistive materials by near-infrared spectroscopy. , 24(2), 85-93, https://doi.org/10.5806/AST.2011.24.2.085

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Abstract

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.