Experimental investigation of full-culm bamboo tubes strengthened by filled concrete and bamboo sheets under axial compression

This paper reviews the mechanical performance of bamboo fiber reinforced polymer composites (BFRP) for structural applications. Bamboo fibers are very promising reinforcements for polymer composites production due to their high aspect ratio, renewability, environmentally friendly, non-toxicity, cheap cost, non-abrasives, full biodegradability, and strong mechanical performances. Besides, bamboo has its own prospects and good potential to be used in biopolymer composites as an alternative for petroleum-based materials to be used in several advanced applications in the building and construction industry. For bamboo fibre to be reinforced with polymer, they must have good interfacial bond between the polymer, as better fiber and matrix interaction results in good interfacial adhesion between fiber/matrix and fewer voids in the composite. Several important factors to improve matrix-fiber bonding and enhance the mechanical properties of BFRP are by fibre treatment, hybridisation, lamination, and using coupling agent. Moreover, mechanical properties of BFRP are greatly influenced by few factors, such as type of fibre and matrix used, fibre-matrix adhesion, fibre dispersion, fibre orientation, composite manufacturing technique used, void content in composites, and porosity of composite. In order to better understand their reinforcing potential, the mechanical properties of this material is critically discussed in this review paper. In addition, the advantages of bamboo fibers as the reinforcing phase in polymer composites is highlighted in this review paper. Besides that, the bamboo-based products such as laminated bamboo lumber (LBL), glued-laminated bamboo (glubam), hybrid bamboo polymer composites, parallel bamboo strand lumber (PBSL), parallel strand bamboo (PSB), bamboo-oriented strand board (BOSB), and bamboo-scrimber have lately been developed and used in structural applications.

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“…Concrete columns [177] Wetting mechanism and interfacial bonding performance of bamboo fibre reinforced epoxy resin composites…”

Section: Densified Bamboomentioning

confidence: 99%

Mechanical performance evaluation of bamboo fibre reinforced polymer composites and its applications: a review

Norizan¹,

Norrrahim²,

Sabaruddin³

et al. 2022

Funct. Compos. Struct.

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“…Bamboo was being used to build houses thousands of years ago and some modern public buildings and utilities continue to be built using bamboo. To improve the mechanical properties of bamboo structures, researchers have started to combine bamboo with other materials, such as steel and concrete to form steelbamboo composite structures [9][10][11][12], bamboo tube-confined concrete columns [13][14], and bamboo-reinforced concrete structures [15][16][17]. Moreover, bamboo fibers or rods have been mixed with concrete to improve its fracture toughness [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Effects of surface modification methods on physical, mechanical, and microstructural properties of sustainable bamboo aggregate subjected to cementitious materials

Wei

Wang

et al. 2023

Preprint

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To alleviate the serious loss of gravel resources and improve the sustainability of concrete materials, this study innovatively proposes the development of a new type of bamboo aggregate from green and renewable Phyllostachys edulis (Moso) bamboo to replace traditional gravel aggregates. To realize the direct application of bamboo aggregates, this study proposes the use of epoxy mortar (EM) and polyurethane (PE) adhesives to modify the bamboo surface. Compared to unmodified and PE-modified bamboo, EM-modified bamboo showed significantly improved physical and mechanical properties. Durability tests revealed that the modified bamboo, especially EM-modified bamboo, was less affected by acidic and alkaline corrosion than the unmodified bamboo and the mass loss rate was almost zero. In the early stages of alkaline corrosion, the strength of the bamboo increased, and then began to decrease after 28 d. The removal of the outer green bamboo significantly improved the adhesion of the adhesive to the bamboo surface, as confirmed by pull-out tests. A sufficient bonding area between the EM-modified bamboo and the cement matrix remained after compression damage, whereas obvious debonding behavior between the cement matrix and unmodified and PE-modified bamboo was observed. In summary, EM modification significantly improved the comprehensive performance of bamboo aggregates. This study is expected to help improve the utilization rate of bamboo, promote bamboo concrete, reduce carbon emissions, and develop sustainable materials.

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“…Bamboo is considered a new material with great market potential among natural fibers [ 24 , 25 , 26 , 27 ] and has been widely used in civil engineering structures, such as short-span footbridges, low-rise houses, long-span roofs and construction envelopes [ 28 , 29 , 30 , 31 ]. The original bamboo tube, as a natural fiber tube structure, has attracted the attention of scholars [ 32 , 33 , 34 ]. Umer et al [ 35 ] investigated the energy-absorbing characteristics of a range of lightweight bamboo-reinforced foam structures.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Foam-Filled Bamboo Composite Tubes under Axial Compression

et al. 2022

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In this paper, a new type of polyurethane foam-filled bamboo composite tube is proposed. Axial compression tests were carried out on unfilled and polyurethane foam-filled bamboo composite tubes. The effects of the foam filler, diameter (50 and 100 mm) and number of winding layers (10, 15 and 20 layers) on the failure mode and energy absorption capacity of the tubes were studied. The test results showed that the failure mode of the unfilled tube was buckling failure, while that of the foam-filled tube was pressure-bearing failure, and the latter was more abrupt. The foam filler enhanced the stability of the wall of the unfilled tube. The interaction between them further increased the bearing capacity of the foam-filled tube and showed a higher platform load at a later stage. In terms of the absorbed energy, specific absorbed energy and average crush load, not all foam-filled tubes were superior to unfilled tubes. However, reducing the height of the bamboo composite tube and increasing the number of winding layers of the bamboo composite tube can effectively increase the positive effect of the foam filler on energy absorption.

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Experimental investigation of full-culm bamboo tubes strengthened by filled concrete and bamboo sheets under axial compression

Cited by 19 publications

References 40 publications

Mechanical performance evaluation of bamboo fibre reinforced polymer composites and its applications: a review

Mechanical performance evaluation of bamboo fibre reinforced polymer composites and its applications: a review

Effects of surface modification methods on physical, mechanical, and microstructural properties of sustainable bamboo aggregate subjected to cementitious materials

Mechanical Behavior of Foam-Filled Bamboo Composite Tubes under Axial Compression

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