Tensile and Flexural Characterization of Bamboo and Rattan as Alternative Reinforcing Bars to Conventional Steel in Concrete | Chapter 4 | Research and Developments in Engineering Research Vol. 8

 The realistic utilization of bamboo (Bambusa vulgaris) and rattan (Calamuc deerratus) as alternative for the common deformed brace reinforcement in concrete is essential for incidental, social and business-related sustainability. For this reason, a systematic exploratory study of the tensile possessions of bamboo and rattan as well as the flexural behaviour of concrete beams supported with these alternative fabrics in comparison accompanying the conventional brace bars was conducted and presented in this place chapter. A worldwide testing supplies was used to assess the yield substance (YS), ultimate stiffness (UTS), and elongation of 50 specimens of the three matters. Three beams of concrete substance 20 N/mm2 were reinforced separately at age 28 days with the unchanging amount of bamboo, rattan, and steel bars, while the stirrups were largely temperate steel bars. To resolve the flexural behavior, the beams were bear hardship BS 1881 centre-point flexural loading. Bamboo, rattan, and fortify bars had mean YS of 201.1 N/mm2, 58.5 N/mm2, and 442.7 N/mm2, respectively, while their UTS were 335.2 N/mm2, 85.4 N/mm2, and 540.1 N/mm2, in that order. The mean extension of bamboo, rattan and steel were 7.42, 10 and 14.7% individually. The load-deflection plots of bamboo and gird RC beams were quadratic, while rattan RC beams had curved trend. The flexural inflexibility of bamboo RC beams (BB) and rattan RC beams (RB) were 32 and 13.5% of the stiffness of steel RC beams (SB). The post-advantage of early start residual flexural substance was 41% for BB and SB, while RB was 25%. Moreover, the moment competencies of BB and RB corresponded to 51 and 21% individually of the capacity of steel RC beams. The important difference in flexural ability between organic rebars and steel maybe attributed not only to tensile strength, but still to inadequate interfacial sticking between bars and actual. It can be decided that bamboo bars are ideal rebars for non-load bearing and lightweight RC flexural constructions, but rattan demands additional pre-toughening treatment for raised interfacial bonding and load-accomplishing capability.

Author(s) Details:

Adekunle P. Adewuyi,
Department of Civil Engineering, University of Botswana, Gaborone, Botswana.

Please see the link here: https://stm.bookpi.org/RADER-V8/article/view/11952