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자료유형
학술저널
저자정보
Kang, Chun Won (Department of Housing Environmental Design, and Research Institute of Human Ecology, College of Human Ecology, Chonbuk National University) Jang, Sang Sik (Department of Forest Products, College of Agriculture & Life Sciences, Chungnam National University) Kang, Ho Yang (Department of Forest Products, College of Agriculture & Life Sciences, Chungnam National University) Li, Chengyuan (Department of Forest Products, College of Agriculture & Life Sciences, Beiwha University)
저널정보
한국목재공학회 목재공학(Journal of the Korean Wood Science and Technology) 목재공학 제47권 제1호
발행연도
2019.1
수록면
33 - 39 (7page)

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The square timbers of larch having cross section of $90mm{\times}90mm$ were glued laterally to be formed $1,200mm{\times}2,400mm$ panels which were used as cores for CLT wall panels. Then, structural plywood panels having size of $1,200mm{\times}2,400mm$ 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.

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