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Effect of heat treatment temperature and time on sound absorption coefficient of Larix kaempferi wood
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Effect of heat treatment temperature and time on sound absorption coefficient of Larix kaempferi wood
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Journal Article
Effect of heat treatment temperature and time on sound absorption coefficient of Larix kaempferi wood
2017
Overview
Heat treatment improves the dimensional stability and hydrophobicity of wood, and heat-treated wood is currently attracting attention as a new interior material. However, there are few evaluations where the acoustic properties of heat-treated wood are reported when such wood is used as an interior material. In this study,
Larix kaempferi
wood, typically used as a building material, was heat-treated at 200, 220, and 240 °C for 9, 12, 15, and 18 h. The sound absorption coefficients of the treated wood samples were measured at 250, 500, 1000, 2000, and 4000 Hz in a reverberation room. The sound absorption coefficient increased with the treatment temperature and the treatment time. The results of this study showed that the high-frequency band range sound absorption coefficient of wood can be increased dramatically by heat treatment.
Publisher
Springer Japan,Springer Nature B.V
Subject
