The stiffness and cracked pattern of bamboo reinforced concrete beams using a hose clamp

Bamboo has high tensile strength, so it can use for concrete construction, especially for simple construction. Bamboo has the slippery surface causes the cracks on Bamboo Reinforced Concrete (BRC) beam not to spread and yield slip failure between a bamboo bar and concrete. Load test of BRC beam yield a little crack and humble load capacity. This research aimed to increase the BRC capacity by giving waterproof coating, sand, and hose clamp installation. The capacity of the BRC element indicates by the parameter of cracked pattern and ultimate load. A beam test specimen with the size of 75 mm x 150 mm x 1100 mm made as many as 26 pieces with the variety of reinforcement. The testing using a simple beam with two-point loading. The test results show that installation of a hose clamp on a bamboo bar with waterproof and sand coating can increase the ultimate load of BRC beams, increase the crack line number, and spread more cracks. There is a difference of stiffness between BRC beams and SRC beams.