Effect of processing methods on the mechanical properties of engineered bamboo

Abstract

h i g h l i g h t sMechanical characterisation of bleached and semi-caramelised laminated bamboo. Thermal treatment processing methods have an effect on the mechanical properties. Engineered bamboo has mechanical properties comparable to timber. a b s t r a c tEngineered bamboo is increasingly explored as a material with significant potential for structural applications. The material is comprised of raw bamboo processed into a laminated composite. Commercial methods vary due to the current primary use as an architectural surface material, with processing used to achieve different colours in the material. The present work investigates the effect of two types of processing methods, bleaching and caramelisation, to determine the effect on the mechanical properties. A comparison to other engineered bamboo and timber products is also presented. The results of the study indicate that processing does affect the mechanical properties of engineered bamboo products. Areas in need of further research are also identified for thermally treated bamboo to be used in structural applications.

A Strong, Tough, and Scalable Structural Material from Fast‐Growing Bamboo

“…Recently, tremendous efforts have been devoted to processing bamboo into sustainable, eco‐friendly, cost‐effective, and high‐performance composite materials. Pre‐treatment with bleaching, saturated steam, hot oil, or by filling with resin followed by densification, has led to the enhanced mechanical performance of natural bamboo . However, the improvement of the mechanical strength is moderate, generally achieving a tensile strength of 200–300 MPa and flexural strength of 100–320 MPa (Tables S1 and S2, Supporting Information), which is mainly due to the natural brittleness of the lignin network and inefficient load transfer caused by weak interface interactions between the sclerenchyma and parenchyma cells and the existence of numerous defects.…”

Effect of the Nonprestressed/Prestressed BFRP Bar on Flexural Performance of the Bamboo Beam

“…erefore, it is necessary to explore more feasible and appropriate materials similar to the wood, and the bamboo is attracting researchers' attention. Compared with wood, advantages of the bamboo are demonstrated as follows: (1) faster growth speed, (2) high speci c strength, (3) high speci c rigidity, and (4) lower water swelling ratio [7,8]. e bamboo can be conveniently obtained in China, which is characteristic as saving costs, environmental friendliness, and recyclability [9][10][11].…”

Bamboo Bicycle - Past or Future?

“…Bamboo is anisotropic composite material with high strength in direction of the fibres, but low in opposite direction. It is estimated that there are around 1250 species; the most of them grow in Asia, America and Africa [5]. Through the past, the bamboo, with more than 1500 commercial applications, played a fundamental role in Asia.…”

“…Effects of heat on bamboo are still unpredictable. Given the potential of bamboo as a material, more and more scientists deal with this problem [5]. Chemical constituents of bamboo fibre are shown in Figure 1.…”

“…The most of research is focused on bamboo fibre biocomposites [2,3] or for constructional purposes [4,5]. Therefore, due to insufficient knowledge about bamboo intended for bicycle frames, opportunity to complement that knowledge has occurred.…”