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- Title
Investigation of sound absorption capability of pine (Pinus densiflora) cone particles.
- Authors
Jang, Eun-Suk; Kang, Chun-Won
- Abstract
In this study, the sound absorption capability of pine (Pinus densiflora) cone particles was investigated as an alternative and eco-friendly, sound-absorbing material. The sound absorption coefficient of pine cone particles was examined after filling impedance tubes with 4, 6, 8, and 10 cm of particles. The sound absorption capability of 4 cm and 6 cm thickness was categorized as 0.5 M class, and that of 8 cm and 10 cm thickness was classed as 0.8 M class according to the KS F 3503 sound-absorbing capability classification of sound-absorbing materials. In particular, 10 cm pine cone particles demonstrated exceptional sound absorption capability in the range of 250–6400 Hz, with an average sound absorption coefficient of 0.6 or greater. In conclusion, pine cone particles were found to have excellent sound absorption capability. Thus, this work suggests that pine cone particles may be useful as an eco-friendly, sound-absorbing material.
- Subjects
ABSORPTION of sound; PINE cones; ABSORPTION coefficients
- Publication
Journal of Wood Science, 2023, Vol 69, Issue 1, p1
- ISSN
1435-0211
- Publication type
Article
- DOI
10.1186/s10086-022-02075-w