重组竹燃烧后的顺纹抗压性能检测

呼梦洁; 俞君宝; 张苏俊

doi:10.19455/j.mcgy.20190603

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重组竹燃烧后的顺纹抗压性能检测
Compressive Strength Parallel to Grain of Bamboo Scrimber after Combustion
1. 扬州工业职业技术学院
2019年33卷第6期页码：10-13
DOI： 10.19455/j.mcgy.20190603

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[1]呼梦洁,俞君宝,张苏俊.重组竹燃烧后的顺纹抗压性能检测[J].木材工业,2019,33(06):10-13.

HU Meng-jie, YU Jun-bao, ZHANG Su-jun. Compressive Strength Parallel to Grain of Bamboo Scrimber after Combustion[J]. China Wood Industry, 2019,33(6):10-13.
[1]呼梦洁,俞君宝,张苏俊.重组竹燃烧后的顺纹抗压性能检测[J].木材工业,2019,33(06):10-13. DOI： 10.19455/j.mcgy.20190603.

HU Meng-jie, YU Jun-bao, ZHANG Su-jun. Compressive Strength Parallel to Grain of Bamboo Scrimber after Combustion[J]. China Wood Industry, 2019,33(6):10-13. DOI： 10.19455/j.mcgy.20190603.

摘要

为探究重组竹燃烧后的抗压性能,在不同受火方式下燃烧不同时间,测试燃烧后试件的炭化深度和顺纹抗压强度。结果表明:随着受火面积增加、受火时间延长,试件的炭化层加深、质量损失率增大,顺纹抗压强度逐渐降低,但在燃烧45 min时,重组竹仍能保持44 MPa的顺纹抗压强度;四面受火比三面受火试件的顺纹抗压强度损失量大。

Abstract

The bamboo scrimber samples were combusted with three and four sides exposed to fire respectively.After cooling down completely,the compressive strength parallel to the grain of the samples were tested.The results showed that as combustion time increased,the carbonation layer depth and the mass loss rate increased,while the compressive strength parallel to the grain decreased gradually.The bearing capacity of the samples combusted on four sides was lower than that on three sides.The samples maintained the compressive strength of 44 MPa in 45 minutes of combustion time.