Experimental study on compressive and tensile properties of a bamboo scrimber at elevated temperatures

Xu, Mengfei; Cui, Zhaoyan; Chen, Zhongfan; Xiang, Jinhua

doi:10.1016/j.conbuildmat.2017.06.128

Cited by 84 publications

(51 citation statements)

References 22 publications

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“…Bamboo scrimber is a high-strength biocomposite consisting of bamboo fibre bundles within a phenolic resin matrix. 1,2 The fabrication process involves 4-to 5-year-old Moso bamboo culms, which are first split into 2-m-long strips. Each strip is pushed into the fluffer to form net-structured bamboo bundles.…”

Section: Discussionmentioning

confidence: 99%

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The charring rate and charring depth of bamboo scrimber exposed to a standard fire

Cui

Chen

et al. 2018

Fire and Materials

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Summary To better understand the charring properties of bamboo scrimber, a standard fire test was conducted to examine the effect of moisture content, exposure time, and grain direction on the charring rate of bamboo scrimber. The bamboo scrimber specimens were exposed to fire on one side with furnace temperatures following the requirements of ISO 834. The experimental results indicated the charring depth decreased as moisture content increased from 6% to 18%. Due to the thermal insulation of the char layer of bamboo scrimber, the charring rate decreased non‐linearly as the fire exposure time increased from 10 to 40 minutes. The charring rate of bamboo scrimber parallel to grain was approximately 1.23 times that perpendicular to grain. The non‐linear equation to express the charring rate of bamboo scrimber with moisture content, exposure time, and grain direction was established by regression analysis of the test data. The temperature of the char front was approximately 280°C, determined by heat transfer analysis of the 3‐dimensional finite element method model. Compared with different timber species in the literature and in standards, bamboo scrimber has better fire performance and a lower charring rate.

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Section: Discussionmentioning

confidence: 99%

“…parameter non-linear model is shown in Equation(1). When the parameter a is equal to 1, charring depth is linearly related to the exposure time; when the parameter a is larger than 1, charring rate increases with the exposure time increasing; when the parameter a is smaller than 1, charring rate decreases with an increase of exposure time.…”

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confidence: 99%

The charring rate and charring depth of bamboo scrimber exposed to a standard fire

Cui

Chen

et al. 2018

Fire and Materials

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“…Xu e al. [16] studied on the stress-strain relationship and failure mechanism of bamboo scrimber at elevated temperatures. e research found the compressive stress-strain curves of bamboo scrimber exposed to elevated temperatures were divided into a linear branch and a nonlinear branch beyond the proportional limit for both grain directions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Axial Compression Behavior of Masonry Columns’ Strengthening with Bamboo Scrimber Bar Mesh Mortar Layer

Liu

Lei

Chen

2020

Advances in Civil Engineering

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We propose a new method to strengthen structural masonry. To study on the axial compression behavior of masonry columns’ strengthening with a bamboo scrimber bar mesh mortar layer, axial compression tests of twelve masonry columns have been completed: nine strengthened columns and three unstrengthened columns. The failure process, bearing capacity, and failure mode are carried out. The strengthening method of bamboo scrimber bar mesh mortar layer permits the upgrade of the columns’ bearing capacity. The effects of bamboo bar ratio and mortar strengthening ratio on bearing capacity of the reinforced columns are compared. We propose the method for calculating the axial bearing capacity of such a reinforced column. The calculation results agree well with the experimental results, and the research results are available for engineering application.

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“…Ahmad et al [28] have analyzed the physical and mechanical properties of parallel strand lumber (PSL) made from Calcutta bamboo. Xu et al [29] have studied compressive and tensile properties of PBSL at elevated temperatures. Yu et al [30][31] have carried out the experiments about the preparation, physical, mechanical, and interfacial morphological properties of PBSL.…”

Section: Introductionmentioning

confidence: 99%

Compression Behaviors of Parallel Bamboo Strand Lumber Under Static Loading

Li¹,

Qiu²,

Wu³

et al. 2019

Journal of Renewable Materials

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In order to investigate the influence of length and compression directions upon behaviour of parallel bamboo strand lumber (PBSL) specimens, 240 axial compression tests have been performed. With three similar one different typical failure modes, the mechanical performance for PBSL specimens under compression parallel to grain and perpendicular to grain are different as a whole. From the point of the characteristic values, the compression strength parallel to grain is 2.1 times of the compression strength perpendicular to grain. The elastic modulus for compression parallel to grain is 3.64 times of the compression strength perpendicular to grain. While the compression ratios along two compression directions are equal to each other. The bigger Poisson ratios for one typical side surface is 3.93 times of that for another typical side surface for PBSL specimens under compression perpendicular to grain, and the bigger value is equal to that for PBSL specimens under compression parallel to grain. Length can influence the mechanical properties of the PBSL specimens. The size 50 mm × 50 mm × 100 mm should be good choice for the standard or code to measure the compression strength. PBSL materials have better ductility under compression parallel to grain than that under compression perpendicular to grain. Stress-strain relationship models were proposed for PBSL specimens under compression parallel to grain and perpendicular to grain, respectively. These proposed models gave a good agreement with the test results.

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Experimental study on compressive and tensile properties of a bamboo scrimber at elevated temperatures

Cited by 84 publications

References 22 publications

The charring rate and charring depth of bamboo scrimber exposed to a standard fire

The charring rate and charring depth of bamboo scrimber exposed to a standard fire

Experimental Study on Axial Compression Behavior of Masonry Columns’ Strengthening with Bamboo Scrimber Bar Mesh Mortar Layer

Compression Behaviors of Parallel Bamboo Strand Lumber Under Static Loading

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