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<p>Steel is one of the commonly used material in the construction industry. There is a need for alternative as it is costly, prone to corrosion and increases self-weight of the structure. One among the alternative to steel is bamboo which proves to be economical, light weight in nature but it needs some sort of surface treatment to improve the bond strength, tensile strength and resistance against water absorption. In this regard the current study evaluates various surface treatment such as painted bamboo, sand coated bamboo (SCB) and carbon fibre wrapped bamboo (CFWB) through the pull out test, water absorption test and flexural strength. The outcomes of the flexural strength are simulated by Abaqus software. It was found that SCB and CFWB have 10.04% and 16.84% reduction in the water absorption capacity respectively when compared with painted bamboo. Further the SCB and CFWB have shown about 136.64% and 127.48% higher bond strength respectively in comparison with painted bamboo. The flexural strength of conventional RC beam (steel reinforcement) is 33.33&#xa0;N/mm<sup>2</sup>, and that of painted bamboo reinforced beam is 13.90&#xa0;N/mm<sup>2</sup><i>,</i> CFWB is 26.11&#xa0;N/mm<sup>2</sup> from experimental results. The hybrid reinforcements exhibited intermediate strength. The simulation of the flexural test using Abaqus shows an increase of 20–32% compared to the experimental results.</p>

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Bond and flexural behaviour of various surface treated bamboo reinforced concrete beams

  • 期刊论文

  • 发表日期：

    2026年5月13日

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  • Rekha S. Kinagi,
  • Veerendrakumar C. Khed,
  • Shubham M. Itekar

摘要

Steel is one of the commonly used material in the construction industry. There is a need for alternative as it is costly, prone to corrosion and increases self-weight of the structure. One among the alternative to steel is bamboo which proves to be economical, light weight in nature but it needs some sort of surface treatment to improve the bond strength, tensile strength and resistance against water absorption. In this regard the current study evaluates various surface treatment such as painted bamboo, sand coated bamboo (SCB) and carbon fibre wrapped bamboo (CFWB) through the pull out test, water absorption test and flexural strength. The outcomes of the flexural strength are simulated by Abaqus software. It was found that SCB and CFWB have 10.04% and 16.84% reduction in the water absorption capacity respectively when compared with painted bamboo. Further the SCB and CFWB have shown about 136.64% and 127.48% higher bond strength respectively in comparison with painted bamboo. The flexural strength of conventional RC beam (steel reinforcement) is 33.33 N/mm2, and that of painted bamboo reinforced beam is 13.90 N/mm2, CFWB is 26.11 N/mm2 from experimental results. The hybrid reinforcements exhibited intermediate strength. The simulation of the flexural test using Abaqus shows an increase of 20–32% compared to the experimental results.