Bambusa Phon: Investigating The Soundproofing Coefficient of Bamboo and Other Materials at Different Decibels Over Time

Noise pollution is a pressing concern in urban and rural environments, necessitating innovative and sustainable soundproofing solutions. Bamboo (Bambusa vulgaris), renowned for its rapid growth and renewability, offers a promising eco-friendly alternative to traditional materials like foam and egg trays. Despite its structural applications, bamboo's soundproofing capabilities remain under-researched, particularly across various decibel levels and environmental conditions. This study addresses this gap by comprehensively evaluating bamboo's acoustic performance and durability. The research employed a quantitative, pre-experimental design to assess bamboo's sound absorption, compressive strength, and water absorption in comparison to foam padding and egg trays. Tests were conducted at multiple decibel levels (70 dB, 83 dB, 90 dB) using a sound level meter, and under different environmental conditions to evaluate material effectiveness. Additionally, water absorption was measured over time (1 minute, 60 minutes, 1440 minutes), and compressive strength was assessed using standardized loads (9.07 kg, 20.41 kg, 22.67 kg). Results showed that bamboo exhibited weaker soundproofing performance compared to foam and egg trays, with significant differences observed across all decibel levels (p < 0.001). Notably, egg trays outperformed both bamboo and foam at higher decibel levels. However, bamboo demonstrated superior durability, achieving the highest compressive strength (1333.45 N/m²), lowest water absorption (16.48% after 24 hours). Bamboo is a viable sustainable material for construction and insulation due to its environmental benefits and structural resilience. While less effective in high-decibel noise reduction, bamboo’s durability makes it suitable for applications requiring long-term performance. Future research should focus on optimizing bamboo treatments for improved acoustics and testing full-scale applications in diverse acoustic environments.噪声污染是城乡环境中亟待解决的突出问题，亟需研发兼具创新性与可持续性的隔声解决方案。竹类（Bambusa vulgaris）以生长迅速、可再生性强而闻名，可作为泡沫、鸡蛋托盘等传统隔声材料的极具潜力的环保替代方案。尽管竹材已在结构工程中得到应用，但其隔声性能的相关研究仍较为匮乏，尤其是在不同分贝水平与环境条件下的表现尚未得到充分探索。本研究旨在填补这一研究空白，对竹材的声学性能与耐久性能展开全面评估。本研究采用定量预实验设计，对比竹材与泡沫垫层、鸡蛋托盘的吸声性能、抗压强度与吸水率。研究中使用声级计在70 dB、83 dB、90 dB三种分贝水平下开展声学测试，并设置不同环境条件以评估材料的降噪效能。此外，研究还在不同时长（1分钟、60分钟、1440分钟）下测量了材料的吸水率，并采用9.07 kg、20.41 kg、22.67 kg三种标准载荷测试竹材的抗压强度。测试结果显示，相较于泡沫与鸡蛋托盘，竹材的隔声性能较弱，且在所有分贝水平下的差异均具有统计学意义（p < 0.001）。值得注意的是，在高分贝环境下，鸡蛋托盘的隔声性能优于竹材与泡沫。但竹材的耐久性能更为优异，其抗压强度可达1333.45 N/m²，吸水率最低（24小时后仅为16.48%）。得益于其环保特性与结构稳定性，竹材是一种兼具实用性的可持续建筑与隔声保温材料。尽管竹材在高分贝降噪方面表现稍逊，但其优异的耐久性使其适用于对长期性能有要求的场景。未来的研究可聚焦于优化竹材的改性处理以提升其声学性能，并在多样化的声学环境中开展全尺寸应用测试。