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Full-Text Articles in Engineering
Effects Of Heat Treatment On The Dimensional Stability And Mechanical Properties Of Guadua Bamboo, Kade Schmitz, Skye Dascher, Shalto Dascher
Effects Of Heat Treatment On The Dimensional Stability And Mechanical Properties Of Guadua Bamboo, Kade Schmitz, Skye Dascher, Shalto Dascher
Materials Engineering
Contributing to about 4% of particulate emissions, the construction industry is one of the largest polluters of the environment. In an effort to reduce emissions, BamCore has produced a dual panel wall system made of Guadua bamboo with a Douglas fir veneer. Bamboo is a highly renewable material with a fast growth rate and carbon sequestration abilities. This project investigates how heat treating Guadua bamboo influences its dimensional changes and mechanical properties for building applications. It was found that a dimensional increase in every direction occurred for all samples when exposed to higher relative humidity (50% to 90%), and that …
Effect Of Heat Treatment On The Mechanical Properties In Natural Bamboo, Austin Levy, Mackenzie Kirkpatrick
Effect Of Heat Treatment On The Mechanical Properties In Natural Bamboo, Austin Levy, Mackenzie Kirkpatrick
Materials Engineering
Previous studies have shown that heat treatments have the ability to improve mechanical strength and stiffness in hardwood species. Compared to structural hardwoods, bamboo is a more sustainable and globally viable renewable resource. Therefore, Bambusoides vivax (timber bamboo) culms were fabricated into flat, rectangular cross-section samples with varying cellulose content to be heat treated and tested for mechanical properties. All samples were heat treated (HT) twice. The first HT was a normalization of all samples at 103 +/- 3 °C. The second HT was performed at various times and temperatures ranging from 130°C to 170°C for 0.5 to 3 hours. …
Analyzing The Flexural Properties Of Self-Constructed Bamboo Laminates, Brett Dorren
Analyzing The Flexural Properties Of Self-Constructed Bamboo Laminates, Brett Dorren
Materials Engineering
Bamboo plies of 1/8" and 1/32" thicknesses were glued together to form multiple unidirectional and cross-ply laminates that measured 12" by 12". The thickness of each laminate was between 0.25" and 0.375". All laminates were pressed together with a Tetrahedron MTP-10 bench top precision press at 75°F and 1000 lbf for 40 minutes. Laminates were then cut with a band-saw into four 3" by 12" test specimens, 24 hours after pressing. Each test specimen was three-point bend tested to identify the modulus of rupture (MOR) and apparent bending stiffness. Three-point bend testing was also performed on laminates that were …
Determining An Inorganic Mineralization Process To Inhibit Organic Degradation And Preserve The Dimensional Stability Of Bamboo, Eric Hahn
Materials Engineering
Bamboo is a renewable natural composite with potential as both a construction and synthesis material. The components of bamboo are cellulosic vascular bundles imbedded within a lignin matrix that create a porous hierarchical structure. This structure has low density while maintaining high strength, toughness, and elasticity, but is susceptible to organic decay. A study was performed to evaluate the effect of varying bamboo culm age (1-3 years) and density (0.72-1.05 g/cm3) on the ability to control inorganic mineral precipitation to prevent degradation and preserve dimensional stability of the organic matrix. Internodal culm samples were immersed in solutions of …
Materials Characterization Of Bamboo And Analysis Of Bonding Strength And Internal Strength As A Structural Member In Reinforced Concrete, Nithi Plangsriskul, Nicholas Dorsano
Materials Characterization Of Bamboo And Analysis Of Bonding Strength And Internal Strength As A Structural Member In Reinforced Concrete, Nithi Plangsriskul, Nicholas Dorsano
Materials Engineering
This study evaluates the potential to utilize bamboo as reinforcement in concrete structural members. In this project, the mechanical properties of bamboo were tested, specifically force required to embed a 0.5” diameter ball 0.016” into the bamboo samples and its bonding strength with concrete. One type of bamboo, Bambusa Oldhamii, was cut into eight sections, approximately 2.54 cm wide, along the length of the culm. The compression test recorded the bamboo’s strength at eight points along the length of the internode and at three points along the transverse direction of each specimen. Bambusa Oldhamii’s specimen base 1 data for inner, …