.The main advantage of bamboo is its fast-growing nature; it can be harvested
in 3 to 4 years. Bamboo has excellent properties in terms of mechanical strength,
especially tensile strength properties, which are comparable with those of steel (Janssen
1990). Betung bamboo or giant bamboo (Dendrocalamus asper Backer) is commonly
planted in Southeast Asia, growing anywhere from lowlands to highlands (2000 m), and
is known for its large diameter as compared with other types of bamboo (Othman et al.
1995). Koizumi et al. (2002) reported that bamboo fiber materials have acoustical
properties equivalent to those of glass wool, which is a good sound absorber.