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Title: NIR monitoring of in-service wood structures

Author: Zanetti, Michela; Rials, Timothy G.; Rammer, Douglas;

Date: 2005

Source: Metropolis & beyond [electronic resource] : proceedings of the 2005 Structures Congress and the 2005 Forensic Engineering Symposium, April 20-24, 2005, New York, NY. Reston, Va. : American Society of Civil Engineers, c2005: ISBN: 0784407533: [9] pages.

Publication Series: Miscellaneous Publication

Description: Near infrared spectroscopy (NIRS) was used to study a set of Southern Yellow Pine boards exposed to natural weathering for different periods of exposure time. This non-destructive spectroscopic technique is a very powerful tool to predict the weathering of wood when used in combination with multivariate analysis (Principal Component Analysis, PCA, and Projection to Latent Structures, PLS). Absorbance spectra contained information about weathering behavior, and PLS models to predict exposure time were very strong, with the correlation coefficients above 0.9. These results, and the “non-destructive” nature of this technique, suggest the potential of NIR for monitoring the condition of in-service wood structures.

Keywords: Near infrared spectroscopy, multivariate analysis, weathering, southern yellow pine, building materials, service life, deterioration, nondestructive testing, spectrum analysis, durability, exposure tests, wood decay

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Zanetti, Michela; Rials, Timothy G.; Rammer, Douglas 2005. NIR monitoring of in-service wood structures. Metropolis & beyond [electronic resource] : proceedings of the 2005 Structures Congress and the 2005 Forensic Engineering Symposium, April 20-24, 2005, New York, NY. Reston, Va. : American Society of Civil Engineers, c2005: ISBN: 0784407533: [9] pages.

 


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