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<p>The generation of agricultural waste represents a significant source of environmental pollution. In response to this problem, the use of banana pseudostem fibres (BPF), obtained from banana plant waste, is proposed as a sustainable alternative in the construction industry. Concrete, widely used for its compressive strength, versatility, durability and affordability, has inherent limitations in terms of its behaviour under bending and tensile stresses. To mitigate these deficiencies, this research examines the incorporation of 20–25&#xa0;mm long BPF as concrete reinforcement in proportions of 0.5%, 1.0% and 1.5%. Tests are analysed for both fresh and hardened properties of the concrete. In addition, SEM scanning electron microscopy tests were performed for the optimum addition in order to analyse the internal structure of the composite. The results obtained highlighted the addition of 1% BPF as the optimum one, as it improves 38.82% the compressive strength, 14.52% the indirect tensile strength, 26.64% the flexural strength and 13.23% the modulus of elasticity with respect to the standard concrete, being supported by the microstructural test. This research is novel because it provides a cost-benefit analysis of the incorporation of these natural fibres, as well as an in-depth study of the mechanical and microstructural properties of the concrete.</p>

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Influence of Peruvian banana pseudostem fiber on the mechanical and microstructural strength of concrete

  • 期刊论文

  • 发表日期：

    2026年5月13日

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  • Marlon Cubas Armas,
  • Lenin Manayay Huamán,
  • Carlos Ventura Suclupe,
  • Robert Suclupe Sandoval

摘要

The generation of agricultural waste represents a significant source of environmental pollution. In response to this problem, the use of banana pseudostem fibres (BPF), obtained from banana plant waste, is proposed as a sustainable alternative in the construction industry. Concrete, widely used for its compressive strength, versatility, durability and affordability, has inherent limitations in terms of its behaviour under bending and tensile stresses. To mitigate these deficiencies, this research examines the incorporation of 20–25 mm long BPF as concrete reinforcement in proportions of 0.5%, 1.0% and 1.5%. Tests are analysed for both fresh and hardened properties of the concrete. In addition, SEM scanning electron microscopy tests were performed for the optimum addition in order to analyse the internal structure of the composite. The results obtained highlighted the addition of 1% BPF as the optimum one, as it improves 38.82% the compressive strength, 14.52% the indirect tensile strength, 26.64% the flexural strength and 13.23% the modulus of elasticity with respect to the standard concrete, being supported by the microstructural test. This research is novel because it provides a cost-benefit analysis of the incorporation of these natural fibres, as well as an in-depth study of the mechanical and microstructural properties of the concrete.