Shear Performance of Adhesive Bonding of Cross-Laminated Bamboo

Xing, Weiqi; Hao, Jian Li; Sikora, Karol S.

doi:10.1061/(asce)mt.1943-5533.0002854

Cited by 31 publications

(10 citation statements)

References 20 publications

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“…Based on the literature reviewed, PF is the most common adhesive used for gluing bamboo strips. It should be noted that different adhesives affect the physical and mechanical properties of LBL [68][69][70]. According to previous studies, the specimens created with polymer-isocyanate (EPI), PUR, hybrid polymer adhesive (HPA), and PVA failed more often along the glue line than the specimens glued with MUF, as well as PF [68,69].…”

Section: Productionmentioning

confidence: 98%

“…It should be noted that different adhesives affect the physical and mechanical properties of LBL [68][69][70]. According to previous studies, the specimens created with polymer-isocyanate (EPI), PUR, hybrid polymer adhesive (HPA), and PVA failed more often along the glue line than the specimens glued with MUF, as well as PF [68,69]. At the same time, EPI appeared to be unsuitable for the creation of LBL to be used in structural applications due to delamination caused by the inability of EPI to transfer loads [68].…”

Section: Productionmentioning

confidence: 99%

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A review of mechanical behavior of structural laminated bamboo lumber

Dauletbek¹,

Li²,

Xiong³

et al. 2021

Sustain. Struct.

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The transition of the construction sector to sustainable development mostly depends on the environmental friendliness of building materials. This, in turn, calls for the development of new, strong, and sustainable materials that would be a worthy alternative for traditional materials, including wood. Over the past decade, laminated bamboo lumber (LBL) has received much attention from engineers, practitioners, and scientists for its attractive mechanical properties, comparable to and in some cases superior to hard and softwood. Moreover, the sustainability of LBL is characterized by its high carbon sequestration, fast time to harvest, high yield, and low energy consumption for processing. However, the behavior of LBL is not yet fully understood, which in turn affects the low awareness and application of the material by practitioners and engineers around the world. Since LBL has a promising future, this article will contribute to a better understanding of its mechanical properties and a more accurate design, taking into account the influencing factors. This article discusses the mechanical properties of three types of structural LBL, namely beams, columns, and sheathing panels. The previous works of researchers on the mechanical properties of structural LBL were reviewed, and thus the most common failure modes, the causes of the destruction of structural elements, and the factors that affect their behavior were discussed and described. This work will serve as a reference for current practitioners and future research.

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Section: Productionmentioning

confidence: 98%

Section: Productionmentioning

confidence: 99%

A review of mechanical behavior of structural laminated bamboo lumber

Dauletbek¹,

Li²,

Xiong³

et al. 2021

Sustain. Struct.

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“…It should be noted that when using hot pressing for molding bamboo panels, densification can occur, which leads to an improvement in the mechanical properties of the material due to the destruction of the cell cavities or filling the pores and therefore reducing the volume fraction of voids [86]. According to Sinha et al [87], strips are usually glued and pressed vertically, and therefore, the dimension and orientation are the same relative to the tangential and radial direction of bamboo. Fig.…”

Section: Introductionmentioning

confidence: 99%

“…According to past studies, the type of glue had an impact on the physical and mechanical characteristics of the material. For example, based on the strength of the The manufacturing process of LBL adhesion, MUF, as well as PF, would serve as the best option for LBL compared to EPI, PUR, hybrid polymer adhesive (HPA), and PVA [87]. At the same time, PF coped better in the exterior applications due to its low wettability, while PVA was recommended for use in the interior, where there was less contact with water [88].…”

Section: Introductionmentioning

confidence: 99%

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A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

Dauletbek¹,

Li²,

Lorenzo³

et al. 2022

Journal of Renewable Materials

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Over the past decade, the physical and mechanical performances of laminated bamboo lumber (LBL)-a bamboobased structural material, have been extensively studied using experimental, analytical, and numerical approaches. This paper presents a review of existing knowledge in the literature about the mechanical properties of LBL. The paper involved the review of the response of LBL to different types of loading such as tension, bending, compression, and shear. Based on results of the literature reviewed, the strength of LBL parallel to grain was 90-124 MPa with MOE of 10700 MPa in tension, 29. 55-72.60 MPa, and MOE of 8396-11022 MPa in compression, 63.87-128.4 MPa, and MOE of 8320-10912 MPa in bending, and 7.15-17.5 MPa in shear. The average strength of LBL was similar and in some cases exceeded the average values of bamboo-or wood-based materials, while the variability of its mechanical parameters was lower. The variability in strength values of LBL was affected by bamboo species, density and thickness of bamboo strips, growth portion, type of treatment, strips arrangements, and type of adhesive which in turn calls for classification of LBL by strength grades, degree of hardness, the capability of impregnation and penetration, as well as by areas of application in construction. The study provided and discussed concluding observations, the current research gap, and future research directions on the mechanical properties of LBL.

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