Abstract
Bamboo can use at the simple concrete construction because of the tensile strength of its mechanical property. Meanwhile, a slippery surface of the bamboo caused cracks in the bamboo reinforced concrete beam (BRC) not to spread and yield slip failure between a bamboo bar and concrete. Load test at the BRC beam yield humble load capacity. This study aims to improve the capacity and behavior of BRC beam bending by giving waterproof coating, sand, and hose clamp installation. The beam test specimen with the size of 75x150x1100mm made as many as 26 pieces with the variety of reinforcement. The hose clamp used on the bamboo reinforcement varies with a distance of 0 cm, 15 cm, 20 cm, and 25 cm. The testing using a simple beam with two-point loading. The test results show that BRC beams have different bending behavior compared to the steel reinforced concrete beam (SRC).
Highlights
Bamboo can use as a substitute for steel reinforcement in concrete construction, especially for simple construction
Installation of a hose clamp on the bamboo reinforcement done after the first layer of waterproof coating is dry (Fig. 3)
A second waterproof coating is performed for closing first stage waterproof defects and to adhere hose clamp more closely to the bamboo reinforcement, and it sprinkled with sand to become rough [8]
Summary
Bamboo can use as a substitute for steel reinforcement in concrete construction, especially for simple construction. Bamboo is much cheaper than steel reinforcement for the same level of strength. Flexural strength of bamboo lamination is stronger if compare to concrete or other natural composite material [4]. The non-treated flexural bamboo reinforcement for reinforced concrete beams is recommended to use a safety factor of 1.2 [5]. Bridge framework, soil retaining wall in rural societies environment, and the research of reinforcement of peat soil under embankment are using non-treated bamboo [6]. The slippery surface is the weakness of the bamboo bar. The roughness modifications such as giving notch and wire coil have done, but it hasn’t been able to maximize the result
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