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<p>This study investigates the influence of <i>Calamus tenuis</i> cane fiber addition at varying percentages (0.05%, 0.10%, 0.50%, 0.75%, and 1.0% by weight) on the compressive and split tensile strength of concrete under different environmental conditions, including 28-day moist curing, 45 days submersion in a 10% NaCl solution, and 45 wet-dry cycles. Results indicate that moderate cane fiber additions, particularly at 0.10%, significantly improve both compressive and tensile strength by enhancing crack-bridging, load distribution, and matrix densification. The specimen with 0.1% fiber achieved the highest performance across all conditions, with compressive strength increases of up to 35% and tensile strength gains of over 12% compared to unmodified concrete. In contrast, higher fiber contents (≥ 0.50%) resulted in strength reductions due to clustering, porosity, and reduced workability. Submersion in NaCl and wet-dry cycling revealed superior durability for 0.1% reinforced concrete, while excessive fiber content compromised resistance to environmental stress. This research emphasizes the importance of optimizing cane fiber dosage to enhance concrete’s mechanical properties and durability, offering sustainable solutions for applications in aggressive environments.</p>

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Performance of concrete incorporated with Calamus tenuis cane fiber under chloride and wet-dry cycles conditions

  • 期刊论文

  • 发表日期：

    2025年10月27日

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  • Most. Shuborna Khatun,
  • Md. Shah Jamal,
  • Md. Saiful Islam

摘要

This study investigates the influence of Calamus tenuis cane fiber addition at varying percentages (0.05%, 0.10%, 0.50%, 0.75%, and 1.0% by weight) on the compressive and split tensile strength of concrete under different environmental conditions, including 28-day moist curing, 45 days submersion in a 10% NaCl solution, and 45 wet-dry cycles. Results indicate that moderate cane fiber additions, particularly at 0.10%, significantly improve both compressive and tensile strength by enhancing crack-bridging, load distribution, and matrix densification. The specimen with 0.1% fiber achieved the highest performance across all conditions, with compressive strength increases of up to 35% and tensile strength gains of over 12% compared to unmodified concrete. In contrast, higher fiber contents (≥ 0.50%) resulted in strength reductions due to clustering, porosity, and reduced workability. Submersion in NaCl and wet-dry cycling revealed superior durability for 0.1% reinforced concrete, while excessive fiber content compromised resistance to environmental stress. This research emphasizes the importance of optimizing cane fiber dosage to enhance concrete’s mechanical properties and durability, offering sustainable solutions for applications in aggressive environments.