This standard specifies the methods for testing small clear specimens of bamboo to determine their physical and mechanical properties. It outlines procedures for assessing moisture content, density, compressive strength, static bending, and shear strength, which are essential for quality control and structural applications.
Method of tests for bamboo
Quick Reference Values
Oven drying temperature for moisture content103 ± 2 °C
Specimen length for compression test (culm)10 times the least dimension
Span for static bending test28 times the thickness of the specimen
Rate of loading for static bending test0.6 mm/min
Specimen size for compression test (from strips)2.5 cm x 2.5 cm x 10 cm
Key Formulas
Moisture Content (%) = [(W - Wo) / Wo] * 100
Density = Mass / Volume
Compressive Strength = Maximum Load / Cross-sectional Area
Modulus of Rupture (MOR) = (P_max * L) / (4 * Z)
Modulus of Elasticity (MOE) = (P1 * L^3) / (48 * I * y1)
Practical Notes
The properties of bamboo are highly variable; ensure sampling represents the species, age, and location along the culm (bottom, middle, top) as intended for use.
Moisture content drastically affects mechanical properties. Tests should be correlated to moisture content, and conditioning of specimens may be required.
The presence and location of nodes in a test specimen can significantly influence results; the standard provides guidance on specimen selection to ensure consistency.