Paper Title
Effect of Thickness of Woven Bamboo Wall on Thermal Conductivity Coefficient and Bulk Density

Abstract
The objective of this study is aimed to investigate experimentally an influence of thickness of woven bamboo wall on thermal conductivity coefficient and bulk density. The woven bamboo wall used as a tested sample in this study is a commercial product which differs in thickness: 3 mm, 4 mm, 6 mm and 8 mm. In practice, there are two main experiments separate from each other to measure the coefficient of thermal conductivity and the bulk density. First, in order to determine the thermal conductivity coefficient, woven bamboo samples were tested under the framework of ASTM C177 standard. The specimen sizes are 30x30 cm2. The experimental operated by AC 220 Volt with 100 Watt at 57 oc for more than 3 Hours to achieve a steady state condition. Second, ASTM D2395-93 method B was applied to evaluate a total volume of samples. Specimen sizes are 3x10 cm2 wrapped with thin plastic wrap. Then thin stick was used to push the specimen down the water level. The result showed that the bulk density and the thermal conductivity coefficient of woven bamboo wall increased with the thickness. In addition, the thermal conductivity coefficient increases when the bulk density increased. The coefficient of thermal conductivity of 3mm thick woven bamboo wall is 1.55 W/m-K, which is the better thermal insulation compared to the other thickness. Index Termsó Thermal Conductivity, Bulk Density, Woven Bamboo, Thermal Insulation.