Sound absorption rate and sound transmission loss of CLT wall panels composed of larch square timber core and plywood cross band

被引：2

作者：

Kang C.W. ^{[1
]}

Jang S.S. ^{[2
]}

Kang H.Y. ^{[2
]}

Li C. ^{[3
]}

机构：

[1] Department of Housing Environmental Design, and Research Institute of Human Ecology, College of Human Ecology, Chonbuk National University, Jeonju

[2] Department of Forest Products, College of Agriculture & Life Sciences, Chungnam National University, Daejeon

[3] Department of Forest Products, College of Agriculture & Life Sciences, Beiwha University

来源：

Journal of the Korean Wood Science and Technology | 2019年 / 47卷 / 01期

关键词：

CLT wall panels; Sound absorption coefficient; Sound transmission loss;

D O I：

10.5658/WOOD.2019.47.1.33

中图分类号：

学科分类号：

摘要：

The square timbers of larch having cross section of 90 mm × 90 mm were glued laterally to be formed 1,200 mm × 2,400 mm panels which were used as cores for CLT wall panels. Then, structural plywood panels having size of 1,200 mm × 2,400 mm were used as cross band covering the small square timber cores to manufacture CLT wall panels. The sound absorption rate of CLT wall panels and polyester board attached CLT wall panels were investigated. The mean sound absorption coefficients of the former and the latter in the frequency range of 100-6400 Hz were 0.21 and 0.74, respectively. The noise reduction coefficients (NRC) of those were 0.21 and 0.40, respectively. Also, the mean sound transmission loss of CLT wood panel in the frequency range of 50-1600 Hz was 45.12 dB and that value at the frequency of 500 Hz was 42.49 dB. It was suggested that the polyester board attached CLT wall panels could be used as housing wall because of its high sound absorption rate and high sound transmission loss. © 2019, Korean Society of Wood Science Technology. All rights resvered.

引用

页码：33 / 39

页数：6

共 15 条

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Kang C.-W., Park H.-J., Jeon S.-S., Sound absorption capability and bending strength of Miscanthus particle based board, Journal of the Korean Wood Science and Technology, 40, 1, pp. 38-43, (2012)

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