45. The use of bamboo-concrete walls was like that of brick, cement, or reinforced glass walls in modern buildings. In the old days, the main structures of houses were mostly made of wood or bamboo; planes between the beams were filled with bamboo-concrete walls. Bamboos that were easily available were used, such as moso bamboo, makino bamboo, dendrocalamus latiflorus munro, and thorny bamboo. As much as possible, matured bamboo are selected prior to production and cut during autumn or winter. The material needs to be completely dried to lower the sugar content and lower the chances of termites. (Traditional sugar removal technique is to soak the bamboo in running water or letting it dry naturally. After a period of time, those without termites are selected.) The production of hay paste requires the clay with the stickiest property, and the hay needs to be cut into 2 to 3cm long. The two are evenly mixed before being smeared onto the bamboo pieces. When completely dried, the
lime is applied over the top for protection and aesthetics. Local materials are used for bamboo-concrete walls and are natural and environmental-friendly. It best exemplifies “resource conservation” and “sustainable recycle and reuse of materials”.