Manufacturing and Characterization of Wide-Bundle Bamboo Scrimber: A Comparison with Other Engineered Bamboo Composites

Abstract

Controlling the variability in mat structure and properties in bamboo scrimber (BS) is key to producing the product for structural applications, and wide strip scrimber (WBS) is an effective approach. In this study, the effects of scrimmed bamboo bundle morphology and product density on the properties of WBS were investigated. WBS panels were manufactured and tested using wide (200 to 250 mm) bamboo strips with different fiberization intensity. Maximum strength properties (flexural, compressive, and shear strength), and lowest thickness swelling and water absorption were achieved with three or four passes due to the higher resin absorption by strips. For balanced product cost and performance, we recommend 1–2 fiberization passes and a panel density of 0.9–1.0 g/cm3. Panel mechanical properties were compared with other common bamboo composites. Bamboo scrimber products were highly variable in properties due to differing manufacturing processes, element treatments, and suboptimal mat structure. Products including laminated bamboo lumber and flattened bamboo made from nonfiberized elements show markedly different relationships between strength and elastic properties mostly due to inadequate bonding between the laminae, which causes premature bond-line failure. This study helped improve the understanding of the structure–property relationship of engineered bamboo products while providing insights into process optimization.

Replacing An Extracted Natural Tooth As A Pontic By Using Fiber-Reinforced Composite: A Case Report

“…Even though some studies have revealed that laboratory-made composite materials seem to perform well when compared to conventional materials, the wear resistance of laboratory veneering composites is highly variable. 6,15 The fracture resistance of composite resins is increased by adding fibre reinforcement. By altering the geometry, fibre content, and fibre orientation, the properties of the composites can be altered.…”

A Review of Basic Mechanical Properties of Bamboo Scrimber Based on Small-Scale Specimens

“…The BS made by hot pressing at 140°C reduces the color deepening while maintaining its high durability, and its compressive strength is higher than that of ordinary BS [48,62]. The BS made of widebundle bamboo strips (WBS) has higher utilization rate of bamboo than the traditional BS, and the cracks caused by the fiberization of wide-bundle bamboo strips form a mechanical interlocking network filled with resin after resin filling and curing, which enhances the mechanical properties of WBS, so the compressive performance of WBS is better than that of traditional BS [63].…”

“…The bending strength parallel to grain of the bending small specimens of BS without special treatment is usually between 100-150 mpa, and the failure mode is that the fiber in the tensile area is broken [17,48,58]. The bending properties MOR and MOE of BS increase with density [63].…”

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“…Troughout its evolution, bamboo has fostered exchanges and infuences with other regions, particularly in Asia [3]. Found across Asia, Africa, and Central and South America [4], bamboo is prized for its sustainability [5], fexibility, and ease of fabrication. It is commonly used in crafting woven products like mats, boxes, and baskets.…”