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<p>A series of tests were conducted to investigate the effect of moisture content on the axial compressive properties of <i>Bambusa rutila</i>. The fiber saturation point (FSP) was accurately determined to be 36.57% using nuclear magnetic resonance technology. The experimental results showed that the axial compressive strength and elastic modulus decreased significantly with increasing moisture content up to the FSP, and then tended to stabilize. Specifically, the compressive strength decreased from 140&#xa0;MPa at 0% moisture content to 45&#xa0;MPa at 67% moisture content, while the elastic modulus decreased from 6868 to 2389&#xa0;MPa. Microscopic analysis revealed that the failure mode shifted from fiber fracture to fiber kinking as the moisture content increased, providing insight into the mechanism of moisture-induced mechanical degradation. This study offers a clearer understanding of the mechanical behavior of solid bamboo under varying moisture conditions and provides a theoretical basis for improving the utilization efficiency of bamboo in humid environments.</p>

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Effect of moisture content on axial compressive properties of Bambusa rutila

  • 期刊论文

  • 发表日期：

    2025年9月8日

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  • Zhenyu Qiu,
  • Zichen Zhang

摘要

A series of tests were conducted to investigate the effect of moisture content on the axial compressive properties of Bambusa rutila. The fiber saturation point (FSP) was accurately determined to be 36.57% using nuclear magnetic resonance technology. The experimental results showed that the axial compressive strength and elastic modulus decreased significantly with increasing moisture content up to the FSP, and then tended to stabilize. Specifically, the compressive strength decreased from 140 MPa at 0% moisture content to 45 MPa at 67% moisture content, while the elastic modulus decreased from 6868 to 2389 MPa. Microscopic analysis revealed that the failure mode shifted from fiber fracture to fiber kinking as the moisture content increased, providing insight into the mechanism of moisture-induced mechanical degradation. This study offers a clearer understanding of the mechanical behavior of solid bamboo under varying moisture conditions and provides a theoretical basis for improving the utilization efficiency of bamboo in humid environments.