Mechanical properties of two bamboo species subjected to heat treatments

Authors

  • Mayra Ferreira Alves de Oliveira Mbamu Engenheira Florestal, mestra em Ciências Ambientais e Florestais pela Universidade Federal Rural do Rio de Janeiro, Seropédica,RJ.
  • Alexandre Miguel do Nascimento Engenheiro Florestal, mestre em Ciência Florestal, doutorado em Ciência Florestal, Professor Titular, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ.
  • Rosilei Aparecida Garcia Engenheira Florestal, mestre em Ciências da Madeira, doutora em Ciências da Madeira, Professora, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ.
  • Daiana Souza de Jesus Engenheira Florestal, mestra em Ciências Florestais, doutoranda do Programa de Pós-Graduação em Ciências Ambientais e Florestais, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ.

DOI:

https://doi.org/10.35977/0104-1096.cct2020.v37.26547

Keywords:

Bambusa tuldoides, Phyllostachys aurea, mechanical tests, thermal modification, modulus of elasticity

Abstract

Bamboo is a very versatile material that shows a high physicomechanical resistance, besides lightness and flexibility. It can be used in various areas such as food, furniture, construction, crafts etc. Heat treatment can be applied to bambu, to improve its dimensional stability, and to change the color and the mechanical properties of the material. The objective of this work was to evaluate the mechanical properties of Phyllostachys aurea and Bambusa tuldoides. The heat treatment was applied at three temperatures and time durations: 160, 180, and 200ºC, for 15, 30, and 45 min, respectively. The mechanical tests were performed using the Contenco universal testing machine. There was a reduction of the compressive strength, with the increase of treatment temperatures. Shear strength decreased by 47% in B. tuldoides, in comparison to the control for the 45-min treatment time, and 59%, considering the temperature at 200°C. In P. aurea there was a 31.5% reduction of shear strength, in comparison to the control at 200ºC. The modulus of elasticity to flexion (MOE) showed a slight increase, with the increment of the treatment temperatures.

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Published

2020-02-18

How to Cite

Mbamu, M. F. A. de O., Nascimento, A. M. do, Garcia, R. A., & Jesus, D. S. de. (2020). Mechanical properties of two bamboo species subjected to heat treatments. Science & Technology Journals, 37(1), e26547. https://doi.org/10.35977/0104-1096.cct2020.v37.26547

Issue

Vol. 37 No. 1 (2020)

Section

Artigos

License

After publication of the work, the Authors are authorized to non-exclusively distribute the version of the published work (for example: publish in an institutional repository, as a book chapter, create links on electronic pages, etc.), as long as the authorship and initial publication in this journal are mentioned.