A Bamboo Treatment Procedure: Effects on the Durability and Mechanical Performance

Bui, Quoc-Bao; Grillet, Anne-CÃ©cile; Tran, Hoang-Duy

doi:10.3390/su9091444

Cited by 33 publications

(18 citation statements)

References 18 publications

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“…The results showed that the treatment decreased the mechanical properties (bending, compressive, and shear strengths). When the treatment duration increases, the mechanical strengths could decrease by 15-58% from the initial strength, depending on each treatment procedure and each mechanical property [35]. On the other hand, some treatments lead to color changes [36,37], which is an undesirable effect [35].…”

Section: Introductionmentioning

confidence: 99%

Effect of disodium octaborate tetrahydrate on the mechanical properties of Dendrocalamus asper bamboo treated by vacuum/pressure method

2019

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The chemical treatments applied to some lignocellulosic resources commonly used as building materials can influence their mechanical performance during service, and hence, this effect should be studied for structural safety reasons. In this piece of work, prismatic samples of Dendrocalamus asper bamboo were treated in a vacuum/pressure process with disodium octaborate tetrahydrate (DOT) solutions and the corresponding mechanical performance was compared with non-treated and water-treated samples. Full penetration of boron was achieved, with DOT retentions of 14.79 kg m −3 and 21.79 kg m −3 for 5% and 8% (wt/wt%) solutions, respectively. Dynamic modulus of elasticity (MOE), static MOE, and compressive modulus of elasticity of the material, with values between 23.3-24.0, 15.9-16.2, and 26.2-27.2 GPa, respectively, were statistically equivalent for all the analyzed treatment conditions. However, a significant influence of the treatment could be observed on the specific compressive strength of bamboo, showing an increase of 35.3% for the 5% solution and 30.6% for the 8% solution. Although without statistical difference among the treatments, similar behavior was observed on the specific modulus of rupture (MOR) under flexural loading, with an increase of up to 10.1% in relation to the reference for the treated samples. The results achieved in the present study from nondestructive excitation pulse, three-point bending, and axial compression tests demonstrated that mechanical behavior of bamboo was preserved or even enhanced by the proposed treatments based on disodium octaborate tetrahydrate.

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Section: Introductionmentioning

confidence: 99%

Effect of disodium octaborate tetrahydrate on the mechanical properties of Dendrocalamus asper bamboo treated by vacuum/pressure method

2019

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“…Para as três partes do bambu base, meio e topo, as médias ficaram abaixo de 15 % de umidade. O processo de tratamento térmico bio-óleo reduz significantemente a umidade do bambu (LI et al, 2015;BUI;GRILLET;TRAN, 2017). Esse tipo de tratamento não evita que brocas ou cupins perfurem o bambu, no entanto eles não conseguem sobreviver no mesmo, evitando uma grande destruição do material (GHAVAMI; MARINHO, 2001).…”

Section: Resultsunclassified

PAINÉIS DE ARGAMASSA ARMADA REFORÇADOS COM BAMBU (Bambusa vulgaris) VISANDO A UTILIZAÇÃO EM PEQUENAS CONSTRUÇÕES RURAIS

et al. 2018

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Objetivou-se com o presente trabalho avaliar as características físicas e mecânicas dos bambus (Bambusa vulgaris e Bambusa vulgaris vittata) com diferentes tratamentos térmicos e aplicá-los como reforço à placa de argamassa armada em substituição ao aço. Para isto, amostras de bambu foram selecionadas e retiradas de uma propriedade rural no município de Rondonópolis - MT. Foram realizados dois tratamentos térmicos (banho em água quente e banho quente-frio com óleo de cozinha usado). Testes foram realizados para determinação do índice de deteorização e teor de umidade do bambu com e sem os tratamentos. Posteriormente, com base nos resultados dos ensaios de tração e compressão do bambu, foram confeccionadas placas de argamassa armada com seis diferentes tipos de reforços. Com base nos resultados obtidos, observou-se que os tratamentos térmico e profilático, diminuíram o teor de umidade e a biodegradação do bambu. No que se refere às propriedades mecânicas, no ensaio de compressão simples, não houve melhoria significativa. Observou-se que nos testes de tração paralela às fibras do bambu e flexão das placas de argamassa armada, ocorreram aumentos satisfatórios nas resistências para as amostras utilizadas com os tratamentos.

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“…This study has shown that bamboo which was at least as stronger as other conventional materials was affordable and sustainable material and it can easily replace them where applicable. However, it is very important that bamboo is well treated in order to ensure its durability and mechanical performance (Bui Q-B, 2017), and service life of related structures.…”

Section: Conclusion and Recommendationmentioning

confidence: 99%

Strength, sustainability and affordability of bamboo and mud bricks as materials used in local construction

Mbereyaho¹,

Mutabaruka²,

Gershome³

et al. 2019

RJESTE

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The construction industry is one of the rapidly growing and the cost analysis suggests that the materials cost is constantly increasing. The continuous extraction of aggregates intensively used in the field is negatively acting to the environment. Therefore research in construction materials should focus not only on discovering new alternative materials but also in appreciating the quality of those locally available for their better application. This research aimed at evaluating the performance of bamboo and mud bricks as two available local building materials, especially with regards not only to their strength but also to new performance concepts which are affordability, energy efficiency and environment friendly aspects. The study comprised mainly of laboratory tests of used materials and cost estimation analysis. Study results established that the considered bamboo and mud bricks, made in ordinary soils and reinforced by sisal fibers were reusable, environment friendly materials and energy efficient, with the bamboo showing the thermal conductivity equal to 0.1496 W/mK. Regarding the compressive strength, reinforced mud bricks with sisal fibers showed an increased value from 1.75 MPA to 4.29MPA, what was in line with related previous studies. The average compressive strength of the studied Arundinaria Alpine bamboo was established at 133,7MPA, while its tensile strength was 88.16MPA and these values were reasonable with comparison to other conventional materials. It is recommended that further research in checking the performance of other types of bamboo as well as about new construction technologies be undertaken in order to enhance the service life of both bamboo and mud bricks.Keywords: Affordability, Bamboo, Conventional concrete, Materials strength, Mud reinforced bricks, Sustainability

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A Bamboo Treatment Procedure: Effects on the Durability and Mechanical Performance

Cited by 33 publications

References 18 publications

Effect of disodium octaborate tetrahydrate on the mechanical properties of Dendrocalamus asper bamboo treated by vacuum/pressure method

Effect of disodium octaborate tetrahydrate on the mechanical properties of Dendrocalamus asper bamboo treated by vacuum/pressure method

PAINÉIS DE ARGAMASSA ARMADA REFORÇADOS COM BAMBU (Bambusa vulgaris) VISANDO A UTILIZAÇÃO EM PEQUENAS CONSTRUÇÕES RURAIS

Strength, sustainability and affordability of bamboo and mud bricks as materials used in local construction

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