ABSTRACT
ABSTRACT: To investigate the hygrothermal effect on the flexural properties of the bamboo sliver laminated lumber in different temperatures and moistures, the flexural properties of Moso bamboo (Phyllostachys pubescens) sliver laminated lumber were tested under five conditions in this paper: freezing (−50°C, 4 hrs); high-temperature drying (150°C, 4 hrs); normal (20°C, RH of 65%), cold water (20°C, 24 hrs) and hot water (90°C, 4 hrs). Test results show that the modulus of elasticity of bamboo sliver laminated lumber in high-temperature, hot water and cold water, respectively, decreases, while the modulus of elasticity increases under the freezing condition, all in comparison with that under normal conditions. Bamboo sliver laminated lumber was also tested in alternating hygrothermal conditions and the results show that decrease in the flexural properties in different conditions was more significant than that in the four temperatures and moistures, respectively.
