Examining sound insulation properties of bamboo-based composite material: A Literature Review

This review examines the sound insulation properties of bamboo-based composites by analysing recent research findings. The main aim is to evaluate how effectively these materials reduce sound transmission and enhance acoustic comfort in building applications. While bamboo is widely used in construction, its acoustic properties are less explored than its structural and thermal attributes. This review paper focuses on composite bamboo panels, such as bamboo particle boards, laminated bamboo, and cross-laminated bamboo. The literature review includes studies from Science Direct, Scopus, and Web of Science published between 2014 and 2024. Comparisons with alternative sustainable materials are also included to enhance the review's contribution. The findings reveal that the acoustic performance of bamboo composites varies due to the natural properties of bamboo and the lack of standardized testing methods. Cross-laminated bamboo panels generally demonstrate superior insulation capabilities, attributed to their unique layering configuration, among the three types of composite bamboo panels. Key factors influencing performance, such as material composition, thickness, and layering technique, are critically analysed to provide insights for future research and applications. Additionally, this review proposes specific empirical research methods to address gaps in the current literature, such as standardized testing procedures for sound insulation evaluation.