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<p>The excellent mechanical properties and economic benefits of Laminated Bamboo (LB) make it a promising building material, but fire hazards limit its development. This paper investigates the pyrolysis and combustion characteristics of LB through experiments and simulations. LB presents a similar pyrolysis trend to those of wood. Its char yield, 0.25, is close to those of natural woods but higher than plywood. LB exhibits typical double heat release rate peak curves when burning under external radiation. Its delamination fissures due to the adhesive failure significantly enhance the second heat release rate peak (<i>HRR</i><sub>peak2</sub>). Its effective combustion heat (12.02&#xa0;MJ&#xa0;kg<sup>−1</sup>) falls within the range of other wood materials. A pyrolysis model of LB was developed, which accurately predicted microscale characterization results. However, the model underpredicted <i>HRR</i><sub>peak2</sub> by 25–40% due to the omission of delamination effects. A 50% enhancement in the predicted <i>HRR</i> was proposed to represent this effect, triggered when the bottom surface temperature reached 450&#xa0;K. The optimized predictions reproduced the experimental <i>HRR</i><sub>peak2</sub> and corresponding trends well, confirming the effectiveness of the proposed optimization. These results provide valuable support for the safe application of LB in construction.</p>

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Pyrolysis, ignition and burning of laminated bamboo: bench-scale experiments and numerical simulations

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • Yang Zhou,
  • Chunli Liu,
  • Zhengyang Wang,
  • Yan Ding,
  • Xinxi Wang,
  • Yuhao Wu,
  • Ting Li

摘要

The excellent mechanical properties and economic benefits of Laminated Bamboo (LB) make it a promising building material, but fire hazards limit its development. This paper investigates the pyrolysis and combustion characteristics of LB through experiments and simulations. LB presents a similar pyrolysis trend to those of wood. Its char yield, 0.25, is close to those of natural woods but higher than plywood. LB exhibits typical double heat release rate peak curves when burning under external radiation. Its delamination fissures due to the adhesive failure significantly enhance the second heat release rate peak (HRRpeak2). Its effective combustion heat (12.02 MJ kg−1) falls within the range of other wood materials. A pyrolysis model of LB was developed, which accurately predicted microscale characterization results. However, the model underpredicted HRRpeak2 by 25–40% due to the omission of delamination effects. A 50% enhancement in the predicted HRR was proposed to represent this effect, triggered when the bottom surface temperature reached 450 K. The optimized predictions reproduced the experimental HRRpeak2 and corresponding trends well, confirming the effectiveness of the proposed optimization. These results provide valuable support for the safe application of LB in construction.