(Peer review + CA) Cracked Pattern of Bamboo Reinforced Concrete Beams Using Double Reinforcement with The Strengthening on Tensile Reinforcement

The cracks in BRC beams are usually less and do not spread when compared to SRC beam cracks. The initial crack of the BRC beam is always followed by the propagation of the crack in the same location and no cracking occurs at the new location. The majority of cracks are horizontal and only slightly vertical. This study aims to increase bond strength and evaluate crack patterns of BRC beams of double reinforcement by strengthening bamboo reinforcement using hose clamps and adhesives. Beam test specimens were made in 4 pieces with different treatments. The dimensions of the bamboo reinforcement are 1.5 cm x 1.5 cm. The dimensions of the concrete beam are 12 cm x 20 cm x 210 cm. The tensile reinforcement ratio is used at 4.67% and the compression reinforcement ratio is 1.88%. The beam test is carried out using a fourpoint load. The test results showed an increase in the bond-strength at the BRC beam with strengthening the tensile reinforcement and the crack is more diffuse when compared with the BRC beam no strengthening.

Keywords: Cracked pattern, Bamboo Reinforced Concrete (BRC), BondStrength, Double Reinforcement.