Analyze the Significance of Age and Height on the Physical and Chemical Properties of Ethiopian Giant Timber Bamboo

Abstract

This research aims to examine the properties of culm based on the factors of age and height for structural and industrial purposes. Aged from 1-3 years old of culm and the height was divided into 3 parts which bottom, middle and top. The properties of Giant Timber bamboo in Ethiopia were not investigated so far from the other research work using age and height factors. 3 Samples of the culm are harvested at each age in the Amhara region at Injibara town, Ethiopia and 6 specimens are prepared for each experimental work. New growth of the bamboo shoot has higher internodes length, internodes diameter, and culm thickness than the previous generates of bamboo shoot. Morphological characteristics of the culm are improved when the ages of culm younger. Moisture contents and shrinkage of culm decrease when the age of culm older, and along culm height goes from the bottom to top. However, oven-dry density, cellulose, and lignin contents increase when the age of culm older and along culm height goes from the bottom to top. Whereas hemicelluloses, extractive and ash contents decrease when the age of culm older and along culm height goes from the bottom to top. Higher moisture contents of culm used to easy extraction of fibers without damage, but it has higher shrinkage in the culm. Whereas higher basic density of culm used for structural and furniture making. Celluloses are used for the biofuel and pulp industry. The lignin used as a binder and improve the structural application of the culm. Whereas hemicelluloses are used in the paper industry.

Experimental study of Yushania alpina bamboo fiber

“…The bamboos utilized in this study were sourced from Ethiopia, specifically from Hagereselam town, located within the Sidama regional state, at an altitude of 2600 meters above mean sea level. These bamboos were determined to be three years old based on the extensive experience of the planters and by adhering to the guidelines outlined by researchers [28,31]. The chemical type used for chemical and combined mechanical and chemical fiber extraction methods is NaOH in a 1 kg container with a small pallet shape.…”

An In-Depth Review on the Eccentric Compression Performance of Engineered Bamboo Columns

“…The wide inherent variation in geometric properties among bamboo culms complicates the establishment of a consistent grading system suitable for structural purposes [15]. Furthermore, the mechanical properties of bamboo culms exhibit significant variations influenced by factors such as species, age, and height, necessitating a comprehensive understanding of these dynamics to enable effective utilization [16][17][18][19]. Moreover, the organic nature of bamboo culms introduces compatibility issues with…”