Bibliografie tematiche / Bamboo materials

Letteratura scientifica selezionata sul tema "Bamboo materials"

Autore: Grafiati

Pubblicato: 8 giugno 2024

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Articoli di riviste sul tema "Bamboo materials":

Suhasman, Suhasman, Detti Yunianti, Sahriyanti Saad e Baharuddin Baharuddin. "Characteristics of Binderless Particleboard Made of Three Species of Sulawesi Bamboos". Wood Research Journal 4, n. 2 (31 agosto 2017): 68–71. http://dx.doi.org/10.51850/wrj.2013.4.2.68-71.

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Binderless particleboards (BP) were produced from three different species of Sulawesi bamboos. Parring bamboo (Gigantochloa ater) was extracted from Tanralili Maros while betung bamboo (Dendrocalamus asper) and tallang bamboo (Schizostacyum barcahycladum) were extracted from Batu Papan Makale Tana Toraja. The bark and nodes were removed, followed by cutting into chips; air drying, and finally converting into fine particles. The particles were oxidized using hydrogen peroxide 15% based on oven dry particle weight and 7.5% ferrous sulfat based on hydrogen peroxide weight. Hot pressing was applied for 12 min at 180ºC. Seven types of bamboo BP were produced based on the raw materials, i.e. the bamboo species namely; parring bamboo, betung bamboo, tallang bamboo, parring-betung bamboo with ratio 1 : 1, parring-tallang bamboo with ratio 1 : 1, betung-tallang bamboo with ratio 1 : 1, and parring-betung-tallang bamboo with ratio 1 : 1 : 1. The results indicated that the characteristics of betung bamboo BP were better than the two other bamboos. The physical and mechanical properties however have not fulfilled JIS A 5908 2003 yet. Differences in BP characteristics were caused by the chemical contents of bamboo, especially lignin that is different from species to species.

Qanytah, Khaswar Syamsu, Farah Fahma e Gustan Pari. "Structure analysis of three non-wood materials for liner paper". Nordic Pulp & Paper Research Journal 34, n. 4 (18 novembre 2019): 453–66. http://dx.doi.org/10.1515/npprj-2019-0043.

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Abstract The potential use of sago pith waste, bamboo, and water hyacinth based on the characteristics of raw materials to make liner paper were studied. The analysis conducted covered the analysis of physical characteristics, chemical components, morphology (SEM), functional groups (FTIR), and crystallinity (XRD). The pulp from the three kinds of fiber was molded into paper with a certain formulation. The parameters of pulp and paper observed covered the alkaline consumption, Kappa number, pulp yield, and paper physical characteristics (grammage, bursting strength, Ring Crush Test/RCT, water content, and water absorption). The chosen paper was the paper whose characteristics resembled the quality parameter of liner paper used by the paper industry and the standard in accordance with the Indonesia’s National Standard (SNI) 14-0095-1996. The microscope images showed that the three said raw materials have long fibers: sago pith waste and water hyacinth has fibers measuring respectively 1.89±0.90 and 2.07±0.39 mm, resembling hard wood, whereas bamboos have longer fibers measuring 4.61±0.72 mm, resembling soft wood. Bamboos have the best fiber composition and characteristics for pulp and liner paper. The two paper formulas that meet the criteria for liner paper are bamboo and bamboo+water hyacinth.

Eneogwe, Innocent. "Examining the Practice of Using Bamboo for Construction, Indoor and Outdoor Decoration". Journal of Physical Science and Environmental Studies 9, n. 1 (20 agosto 2023): 1–9. http://dx.doi.org/10.36630/jpses_23010.

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With the rise in the cost of building materials all over the world, there is a need to resort to low-cost building materials or building materials that are not capital-intensive. One of such low-cost building material that suits the purpose of the study is bamboo. This paper attempted to present the use of bamboo in the building industry. The paper made use of the survey method in data gathering and discussion. It was found out that bamboos are formidable in building and interiors, as the innovation has been globally accepted to be quite reliable as a housing decoration tool, especially in developing countries of the world. The study recommended that bamboo should be harnessed as a cost-effective material besides being a preferred option that has gained wide acceptance for both indoor and outdoor decorations. Key Words: Cost-effective, Bamboo, indoor decoration, outdoor decorations, bamboo varieties, use of bamboo.

Masrilurrahman, LL Suhirsan, e I. Gde Adi Suryawan Wangiyana. "Identifikasi Jenis dan Pemanfaatan Bambu di Desa Loyok, Kecamatan Sikur, Kabupaten Lombok Timur". Empiricism Journal 3, n. 2 (31 dicembre 2022): 406–14. http://dx.doi.org/10.36312/ej.v3i2.1168.

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Masyarakat di Desa Loyok Kecamatan Sikur Kabupaten Lombok Timur memiliki interaksi yang kuat dengan tanaman bambu. Bambu merupakan salah satu komoditi Hasil Hutan Bukan Kayu yang mampu menunjang perekonomian mereka. Penelitian ini bertujuan untuk mengetahui jenis-jenis bambu dan mengetahui pemanfaatan dari setiap bambu yg ditemukan. Penelitian menggunakan metode deskriptif eksploratif dengan pengumpulan data jenis bambu dan pemanfaatannya dilakukan dengan cara penjelajahan untuk mengiventarisasi jenis bambu yang ada di Desa Loyok. Selanjutnya dilakukan wawancara melalui purposive random sampling dilakukan terhadap 9 responden petani hutan untuk mengetahui pemanfaatan bambu. Data hasil inventarisasi jenis bambu ditabulasikan. Berdasarkan hasil inventarisasi, Jenis bambu yang ditemukan di Desa Loyok sebanyak 3 genus, yaitu 2 bambu Gigantochloa, 2 bambu Bambusa, dan 1 bambu Dendrocalamus. Jenis bambu tersebut yaitu: Bambu Ater (Gigantochloa atter), Bambu Kuning (Bambusa vulgaris cv Vittata), Bambu Tali (Gigantochloa apus), Bambu Petung (Dendrocalamus asper) dan Bambu Ampel (Bambusa vulgaris Schard). Masyarakat di Desa Sikur memanfaatkan bambu tersebut untuk bahan bangunan, bahan konsumsi, dan mengembangkannya menjadi berbagai produk kerajinan tangan yang lebih bernilai. Identification of Types and Utilization of Bamboo in Loyok Village, Sikur District, East Lombok Regency Abstract Loyok Village, Sikur District, and East Lombok Regency communities strongly interact with bamboo plants. Bamboo is a non-timber forest product that could benefit these communities economically. This study aims to find out the types of bamboo and the utilization of each bamboo found. This research is used descriptive explorative method. Data collection on bamboo species and their utilization was conducted using exploration to take inventory of bamboo species in Loyok Village.Furthermore, interviews based on purposive random sampling were conducted to determine the use of bamboo. The results of the inventory of bamboo species are tabulated. Based on the inventory results, 3 genera of bamboo species are found in Loyok Village, namely 2 Gigantochloa bamboos, 2 Bambusa bamboos, and 1 Dendrocalamus bamboo. The types of bamboo are: Ater Bamboo (Gigantochloa atter), Yellow Bamboo (Bambusa vulgaris cv Vittata), Tali Bamboo (Gigantochloa apus), Petung Bamboo (Dendrocalamus asper) and Ampe Bamboo (Bambusa vulgaris Schard). The people in Sikur Village use the bamboo for building materials, consumption materials, and develop it into various more valuable handicraft products.

Laksono, Andromeda Dwi, e Diah Tri Agustiningtyas. "Pengaruh Faktor Geografi Terhadap Karakteristik Bambu Petung". SPECTA Journal of Technology 3, n. 1 (5 dicembre 2019): 25–32. http://dx.doi.org/10.35718/specta.v3i1.115.

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In this study was about a comparison of geographic factors towards the characterization of petung bamboo in Indonesia and the Philippines. Bamboo is one of the plants that has advantages in the field of technical materials based on developments in composite materials and is found in various regions. In general, bamboo has lignin and cellulose, where the morphology and nature of both bamboos are not the same from different countries. Therefore,material testing was carried out on each Indonesian and Filipino petung bamboo using material characterization testing methods. The process of Differential Scanning Calorimetry (DSC) was carried out to measure calorimetry with the yield of melting point in Philippine petung bamboo at 341ºC which is lower than the melting point in Indonesian petung bamboo which is 354.34ºC. In this DSC test, quantitative and qualitative results were obtainedin the form of phase changes, melting, and transition temperatures that occurred. Then an Energy Dispersive Spectrometer (EDS) was analyzed and the carbon content of cellulose and lignin was higher in Indonesian petung bamboo, respectively 65.29 wt.% And 66.05 wt.%. The morphology of bamboo shows that the fibers and matrices present in Philippine petung bamboo are denser than those of Indonesian petung bamboo. The highest peak value based on X-Ray Diffraction (XRD) is found in Philippine petung bamboo at 2ș of 34.49 and cubic phase.

Silva, Fernando José, Francisco Carlos Rodrigues e Luís Eustáquio Moreira. "Buckling of Masts of Bamboos Bundles". Key Engineering Materials 634 (dicembre 2014): 379–88. http://dx.doi.org/10.4028/www.scientific.net/kem.634.379.

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Bamboos generally have elasticity module in compression of about 9 GPa, which is a relatively low value compared to timber and concrete, 20 GPa, and steel, 200 GPa. However, the compressive strength is high - 40 to 80 MPa – that, combined with axissimetria of the cross section, makes the bamboos structural elements with high strength and flexibility. Considering the low apparent specific weight of the material 8 kN/m3, photosynthetic production and workability, bamboos have no competitor in the market so that loads can be absorbed independently by any of the above materials. But the industrial structural elements may be produced with dimensions and geometries provided in accordance with the load to be transported. This is not the case of bamboo. Thus, the capacity of the bamboo in compression becomes limited by its natural flexural rigidity, EI. Thus, different structural systems with pipe threads to make large columns or masts were investigated, [1,2], all with bamboo Phyllostachys pubescens species. In this paper, a kind of mast composed of a central bamboo 6 m in length and six smaller segments axi-symmetrically distributed around this central bamboo will be presented. This proposed design is organizationally a set of bars shackled by steel bands along the length of the beam. Flexion-compression tests with bamboo species Phyllostachys pubescens, combined with numerical modeling through the MEF were made. The loading capacity was tripled and the lateral deviations are negligible when compared with the axial bamboo tested alone. This mast, while consuming a relatively high number of bamboo units, has the advantages of ease and constructive possibility of structural use of smaller diameter bamboo. All the design and results of experimental and numerical analyzes will be discussed in this paper.

Asare, B. Jnr, e Y. Danyuo. "Mechanical Characterization of Earth-Based Composites Materials Reinforced with Treated Bamboo Fibres for Affordable Housing". MRS Advances 5, n. 25 (2020): 1313–21. http://dx.doi.org/10.1557/adv.2020.214.

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AbstractThis paper presents the characterization of laterite-cement-based matrix composites, reinforced with chemically modified bamboo fibers. Fiber extraction and chemical modification were first explored by soaking slabs of bamboos in NaOH solution (5 wt.% of NaOH in distilled water) for 14 days. Fiber characterization, as well as the flexural and compressive strength of reinforced composites, were carried out with MTS universal mechanical testing machine. Comparative results on the compressive and flexural strength were obtained at 80 wt.% laterite (L) to 20 wt.% cement (C) with fiber ratios from 5-25 wt%. The compressive strength of the composites varied from 7.2 MPa (at 5 wt.% bamboo fiber) to 17.67 MPa (at 25 wt% fiber blocks). The hardness of the composites was found to improve from 66.67-75.0 HD with bamboo fibers. Results were then discussed for possible structural applications such as enhancing low-cost building blocks for rural communities in Ghana.

Zhang, Sheng Li, Yan Hua Song, Xiao Gang Li e Wei Li. "Study on the Capacitance Performance of Activated Carbon Material for Supercapacitor". Advanced Materials Research 239-242 (maggio 2011): 797–800. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.797.

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Activated carbon for electric double-layer capacitors was prepared from bamboos by activation with KOH solution through heating by microwave radiation. The influence of the mass ratio of KOH to bamboo, power and radiation time of microwave was studied. The behavior of charge/discharge, cyclic voltammetry and AC impedence of bamboo-based activated carbon electric double-layer capacitor was investigated. The results indicated that the specific capacitance of bamboo-based activated carbon supercapacitors can reach 277.46F/g while KOH to bamboo is 6:1 and the power and radiation time of microwave are 720W and 12 minutes respectively. Moreover, the electric double-layer capacitor using the activated carbon as electrode materials has good charge/discharge properties and cycling performance.

Sun, Haoxian, Xuhong Li, Haitao Li, David Hui, Milan Gaff e Rodolfo Lorenzo. "Nanotechnology application on bamboo materials: A review". Nanotechnology Reviews 11, n. 1 (1 gennaio 2022): 1670–95. http://dx.doi.org/10.1515/ntrev-2022-0101.

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Abstract Bamboo is one of the renewable materials which can be applied in the engineering field widely. Previous research has shown that bamboo’s inherent poor durability can limit the application of bamboo materials. And nanotechnology has been receiving more and more attention on improving the properties of natural materials, simultaneously. This article aims to promote the application of nanotechnology on bamboo by presenting some guides. And this article has been organized as follows: first, the characteristics and nanomechanical behavior of bamboo in mesoscopic and nanoscopic scale have been introduced. Then, nanomaterials for modifying bamboo have been presented. Next, some analyses on the improvement of some properties of nano-modified bamboo materials have been made. Finally, future perspectives have been discussed.

Park, Se Hwi, Jae Hyuk Jang, Nyoman J. Wistara, Fauzi Febrianto e Min Lee. "Fuel properties of Indonesian bamboo carbonized at different temperatures". BioResources 14, n. 2 (12 aprile 2019): 4224–35. http://dx.doi.org/10.15376/biores.14.2.4224-4235.

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Bamboo can be used in a variety of ways, including as fuel and as household and construction materials. Due to its versatility, the material is of high economic value. This study investigated the fuel properties of six bamboo species grown in Indonesia. Each bamboo sample was carbonized at different temperatures. Proximate and ultimate analyses were carried out on the bamboo samples. The thermal maturity of the bamboo samples as a solid fuel was investigated by the van Krevelen diagram. The efficiency of bamboo at each carbonizing temperature was determined based on the char yield, energy densification rate, energy efficiency, and calorific value. The results showed that the ash and fixed carbon contents of carbonized bamboo increased with an increasing carbonization temperature; while the volatile matter decreased. Significant changes in the fuel properties were observed between 200 °C and 400 °C. Carbonized bamboos showed lower sulfur contents in comparison to other fossil fuels. Ampel bamboo showed a calorific value of 18 MJ/kg to 32 MJ/kg, which was the highest value among the samples. Bamboo carbonized at temperatures above 600 °C showed a thermal maturity of coal grade. The results of this study can be used for utilizing Indonesian bamboo as a fuel source.

Più fonti

Tesi sul tema "Bamboo materials":

Dixon, Patrick G. (Patrick Gary). "The structure and mechanical behavior of bamboo and bamboo products". Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111242.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2017.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 199-215).
Bamboo is a unique lignocellulosic material with considerable potential in sustainable construction. Structural bamboo products are analogous to wood products, such as oriented strand board (OSB), but composed primarily of bamboo elements, as opposed to wood elements. Such products could extend the use of bamboo. The mechanical behavior of structural bamboo products in large part depends on that of bamboo tissue. In this thesis, the structure and mechanical properties of dry bamboo tissue are related. Cellular level models are developed and explored, with a focus on density. Density is a practical parameter: it corresponds to weight, and places bamboo in the broader context of cellular solids. Bamboo tissue is made up of parenchyma and vascular bundles, consisting of sclerenchyma fibers and vessels; the structure can be thought of as a fiber reinforced composite. There is a radial gradient in the volume fraction of vascular bundles as well as the fraction of quite solid sclerenchyma fibers within the vascular bundles, increasing from the inside to the outside of the culm wall. Longitudinal flexural properties (modulus of elasticity MOE and modulus of rupture MOR) and compressive strength increase with increasing sclerenchyma fiber volume fraction, indicating the mechanical importance of these fibers. The density also increases with increasing fiber volume fraction. Thus, these longitudinal mechanical properties increase with density. This suggests that in bamboo tissue density reflects the underlying sclerenchyma fiber volume fraction. For moso bamboo (Phyllostachys pubescens), the extrapolated cell wall longitudinal Young's modulus estimate from tests on small flexural specimens, 39.8 GPa, agrees well with the value of 36.6 GPa obtained from a simple cell wall model for the fibers. From mechanical tests of 3D printed models of bamboo parenchyma, an open-cell foam model seems appropriate for bamboo parenchyma. The densification of bamboo increases the longitudinal flexural properties, but natural bamboo at the same density of densified bamboo has higher properties. A multiscale model for wood OSB is adapted for bamboo OSB based on the natural tissue's structure and properties; this model gives a good description of the modulus of elasticity of bamboo OSB made with internode strands.
by Patrick G. Dixon.
Ph. D.

Aijazi, Arfa N. (Arfa Nawal). "Material characterization of Guadua bamboo and the environmental feasibility of structural bamboo products". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/80899.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2013.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (p. 52-55).
Bamboo has long been used in vernacular construction because of its high strength, rapid growth rate, and global abundance. Bamboo is increasingly being used in contemporary architecture as a sustainable alternative to wood and other building materials. Forming bamboo into a structural composite can improve mechanical performance, durability, and joining, which can open up new structural applications and design possibilities as well as remove the stigma that bamboo is the "poor man's timber". This study aims to characterize the radial and longitudinal variation in the microstructure and mechanical properties of Guadua bamboo (Guadua angustifolia kunth) in order to inform efficient material use in a composite. The study found a linear relationship between the MOE, MOR, and compression strength with density. Through analysis of micrographs, the density was correlated to the area fraction of sclerenchyma fiber sheaths. Results from nanoindentation confirmed that the fiber properties did not vary with position. Further the environmental impact in the form of exhaustion of energy found that processed bamboo had a mechanical advantage over raw bamboo culm and lower energy input in manufacturing but superior performance in comparison to wood composites.
by Arfa N. Aijazi.
S.B.

Dagilis, Trevor David. "Bamboo composite materials for low-cost housing". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/NQ54407.pdf.

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Ahmad, Mansur. "Analysis of Calcutta bamboo for structural composite materials". Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/28742.

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Land use issues have dramatically changed the timber supply outlook for our nation's forest products industry. Since demand for wood products shows no sign of abating, alternative products must be developed. Bamboo is a very promising alternative raw material for the manufacture of structural composite products. It is fast growing, economical, renewable and abundant throughout the world. Bamboo has physical and mechanical properties that are comparable to many commercial timber species, and thus, may easily be processed using existing technology from the wood-based composites industry. Bamboo can be cultivated in the U.S., and thus has the potential to relieve some of the harvesting pressure from our nation's forestlands. However, the use of specific bamboo species for structural composite products will require a thorough investigation of the material as well as its interaction with other components. Thus, the primary objective of this dissertation is to determine the properties of Calcutta bamboo and its interaction with adhesives. The properties investigated were relative density, dimensional stability, equilibrium moisture content, bending strength and stiffness, tensile strength, pH, buffer capacity, wettability and the adhesive penetration. In addition to this, a prototype bamboo parallel strip lumber (BPSL) was manufactured and tested for its physical and mechanical properties. The relationships among the properties of Calcutta bamboo and the prototype bamboo composite were also investigated. As the result of these investigations, it is concluded that Calcutta bamboo is technically a suitable raw material for structural composite products. This result may also be applicable for the utilization of other bamboo species, thus aiding companies in decisions regarding investment in bamboo plantations and manufacturing facilities in the U.S, Malaysia and other parts of the world. The primary benefits from this research may be the development of new products to serve growing markets, and thereby relieving some of the pressure to harvest forestlands.
Ph. D.

Gerhardt, Michael R. "Microstructure and mechanical properties of bamboo in compression". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76122.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 34).
Bamboo has received much interest recently as a construction material due to its strength, rapid growth, and abundance in developing nations such as China, India, and Brazil. The main obstacle to the widespread use of bamboo as a structural material is the lack of adequate information on the mechanical properties of bamboo. In this work, the microstructure and mechanical properties of Phyllostachis dulcis bamboo are studied to help produce a model for the mechanical properties of bamboo. Specifically, a linear relationship is established between the density of bamboo samples, which is known to vary radially, and their strength in compression. Nanoindentation of vascular bundles in various positions in bamboo samples revealed that the Young's modulus and hardness of the bundles vary in the radial direction but not around the circumference. The compressive strength of bamboo samples was found to vary from 40 to 95 MPa, while nanoindentation results show the Young's modulus of vascular bundles ranges from 15 to 18 GPa and the hardness ranges from 380 to 530 MPa.
by Michael R. Gerhardt.
S.B.

Ross, Sheila. "Bamboo construction as a sustainable building technology from a structural and materials engineering perspective". Master's thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/33901.

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The objective of this dissertation is to determine whether bamboo culms or stems are suitable for use as a construction material for permanent structures, from an engineering as well as a sustainability perspective. A secondary objective is to establish whether this would be a suitable building technology for South Africa. The research is desk-top in nature and involves reviewing articles in online journals and publications and collating the information into a coherent form. Eleven species of bamboo commonly used in construction worldwide are selected for investigation of their material and engineering properties. Based on the variations found in the various species of bamboo, approaches to engineering modelling and design of bamboo structures are detailed and discussed. Furthermore, four case studies are presented that illustrate the various areas where bamboo construction is currently used. Finally, research is done regarding the level of the South African bamboo industry, including whether a bamboo species currently exists in South Africa that would be suitable for construction purposes. The preliminary literature review indicated that there is a lack of scientific or structural information regarding bamboo as a building material from an engineering or materials perspective, both globally as well as in South Africa. Although a substantial amount of information was subsequently found on the various aspects of bamboo as a structural material, the information varies widely between sources, which is ascribed to variations in test methods as well as to the location of the species being tested. The design codes and standards from various countries for bamboo design and construction are briefly reviewed. For countries where there is currently no bamboo design code or standard, such as South Africa, it is recommended that the International Standard, ISO 22156, be used as a design basis, using specific material properties relevant to the local species. Many publications state that bamboo is a sustainable building material, comparing favourably with other building materials. However, quantitative proof was found to be either lacking or unclear. Different methods were used in the publications to evaluate bamboo from an environmental perspective, making it difficult to compare and evaluate the different reports and results. However, despite the different methods, it appears that bamboo can be regarded as an environmentally favourable material, provided that local species are used in construction. The four case studies presented demonstrate that bamboo culms are suitable for use in large structures, such as bridges or trusses, as well as for smaller structures such as buildings or houses. They also illustrate the issues that can occur if the design intent is not understood or correctly carried out during construction. South Africa has one bamboo species considered suitable for construction, namely Bambusa balcooa, which is grown in various parts of the country. The properties of the South African plants have not been established as yet. However, theoretical engineering and material properties as determined elsewhere in the world indicate that this is a viable construction material. Further areas of research are the establishment of the material and engineering properties of the local South African bamboo species Bambusa balcooa, as well as further research into the behaviour of bamboo in fire conditions.

García, Lina M. (Lina Mariá García De la Ossa). "Radial and longitudinal variation of the mechanical properties of bamboo". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/101858.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 47-48).
Although used for millennia, only recently has there been an increased interest in bamboo as a construction material for its economic, social and environmental benefits. For bamboo to be widely implemented in construction, however, there is a need to better understand the variation in the plant's mechanical properties. The microstructure of bamboo and the mechanical properties of the solid cell wall material of bamboo were characterized for use in models for the variation of the overall mechanical properties of bamboo as a function of radial and longitudinal position. The density of bamboo and the volume fraction of vascular bundles in the bamboo increases with radial position (away from the center of the culm) and decreases with height. Tensile tests follow the trends predicted by the models. Young's modulus and strength increase with radial position (away from the center of the culm). Values for Young's modulus were in the range of 5 to 40 GPa and values for strength varied from 100 to 400 MPa.
by Lina M. Garcia.
S.B.

Qian, Jun. "Investigation of crystallization of poly(3-hydroxybutyrate-CO-3-hydroxyvalerates) and their bamboo fiber reinforced composites". Online access for everyone, 2006. http://www.dissertations.wsu.edu/Thesis/Fall2006/J_Qian_120906.pdf.

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Archila, Santos Hector Fabio. "Thermo-hydro-mechanically modified cross-laminated Guadua-bamboo panels". Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675700.

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Guadua angustifolia Kunth (Guadua) is a bamboo species native to South and Central America that has been widely used for structural applications in small and large-scale buildings, bridges and temporary structures. Currently, its structural use is regulated within seismic resistant building codes in countries such as Peru and Colombia. Nevertheless, Guadua remains a material for vernacular construction associated with high levels of manual labour and structural unpredictability. Guadua buildings are limited to two storeys due to the overall flexibility of the slender and hollow culms and its connection systems. Its axial specific stiffness is comparable to that of steel and hardwoods, but unlike wood, Guadua’s hollow structure and lack of ray cells render it prone to buckling along the grain and to transverse crushing. As a result, Guadua’s mainstream use in construction and transformation into standard sizes or engineered Guadua products is scarce. Therefore, this work focussed on the development of standardised flat industrial structural products from Guadua devising replicable manufacturing technologies and engineering methods to measure and predict their mechanical behaviour. Cross-laminated Guadua panels were developed using thermohydro-mechanically modified and laminated flat Guadua strips glued with a high performance resin. Guadua was subjected to thermo-hydro-mechanical (THM) treatments that modified its microstructure and mechanical properties. THM treatment was applied to Guadua with the aim of tackling the difficulties in the fabrication of standardised construction materials and to gain a uniform fibre content profile that facilitated prediction of mechanical properties for structural design. Densified homogenous flat Guadua strips (FGS) were obtained. Elastic properties of FGS were determined in tension, compression and shear using small-clear specimens. These properties were used to predict the structural behaviour of G-XLam panels comprised of three and five layers (G-XLam3 and G-XLam5) by numerical methods. The panels were assumed as multi-layered systems composed of contiguous lamellas with orthotropic axes orientated at 0º and 90º. A finite element (FE) model was developed, and successfully simulated the response of G-XLam3 & 5 panels virtually loaded with the same boundary conditions as the following experimental tests on full-scale panels. G-XLam3 and G-XLam5 were manufactured and their mechanical properties evaluated by testing large specimens in compression, shear and bending. Results from numerical, FE predictions and mechanical testing demonstrated comparable results. Finally, design and manufacturing aspects of the G-XLam panels were discussed and examples of their architectural and structural use in construction applications such as mid-rise buildings, grid shells and vaults are presented. Overall, this research studies THM treatments applied to Guadua in order to produce standardised engineered Guadua products (EGP), and provides guidelines for manufacturing, testing, and for the structural analysis and design with G-XLam panels. These factors are of key importance for the use of Guadua as a mainstream material in construction.

Srikar, V. T. (Vengallatore Thattai) 1972. "Electromigration behavior and reliability of bamboo Al(Cu) interconnects for integrated circuits". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85249.

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Libri sul tema "Bamboo materials":

International Conference on Modern Bamboo Structures (1st 2007 Changsha, China). Modern bamboo structures: Proceedings of first international conference on modern bamboo structures (ICBS-2007), Changsha, China, 28-30 October 2007. A cura di Xiao Yan, Inoue Masafumi e Paudel Shyam K. Boca Raton: CRC Press/Taylor & Francis, 2008.

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Oprins, Jan. Bamboo: A material for landscape and garden design. Basel: Birkhäuser, 2006.

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Castro, Dicken. La guadua. 2^a ed. Bogotá, Colombia: FES, 1985.

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Cala, Ismael. Ser como el bambú: Be like the bamboo. Nashville, Tennesse: HarperCollins Español, 2015.

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Tsien, Tsuen-hsuin. Written on bamboo & silk: The beginnings of Chinese books & inscriptions. 2^a ed. Chicago: University of Chicago Press, 2004.

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von, Vegesack Alexander, Kries Mateo 1974-, Vitra Design Museum, ZERI Foundation e C.I.R.E.C.A, a cura di. Grow your own house: Simón Vélez und die Bambusarchitektur = Simón Vélez and bamboo architecture. [Weil am Rhein, Germany]: Vitra Design Museum [in cooperation with, 2000.

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Huang, Chunyan, e Xiumei Zhan. Song dai jing ji pu lu. 8^a ed. Lanzhou: Gansu ren min chu ban she, 2008.

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Kankōkai, Nihon Hatsumei Daijiten. Nihon hatsumei daijiten. Tōkyō: Ōzorasha, 2010.

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Rittironk, Supreedee. Thai bamboo: Material explored. Bangkok, Thailand: G7 Publication, 2011.

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1938-, Dunkelberg Klaus, a cura di. Bambus =: Bamboo. Stuttgart: Institut für Leichte Flachentragwerke, 1985.

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Capitoli di libri sul tema "Bamboo materials":

Wachter, Igor, Peter Rantuch e Tomáš Štefko. "Transparent Bamboo". In Transparent Wood Materials, 47–57. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-23405-7_5.

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Ren, Yihua, e Yingwu Yin. "New Bamboo-Based Materials". In Bamboo and Sustainable Construction, 323–44. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0232-3_12.

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Das, Mahuya. "Bamboo Fiber-Based Polymer Composites". In Composite Materials, 627–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49514-8_18.

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Abdullah, Fadzidah, Aliyah Nur Zafirah Sanusi, Aida Kesuma Azmin e Zeenat Begam Yusof. "Bamboo: The Forgotten Versatile Materials". In Innovative Renewable Energy, 1–17. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71700-1_1.

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Rahman, Md Rezaur, e Muhammad Khusairy Bin Bakri. "Bamboo Cellulose Gel/MMT Polymer Nanocomposites for High Strength Materials". In Bamboo Polymer Nanocomposites, 131–57. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68090-9_7.

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Rathoure, Ashok Kumar. "Life Cycle Assessment of Bamboo Products". In Encyclopedia of Green Materials, 1–6. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-4921-9_168-1.

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Dong, Zhi Zhong, Haiyong Gao, Cheng Shan Xue, Zhi Hua Dong e Jianting He. "Synthesis of Bamboo-Shaped Gallium Nitride Nanorods". In Materials Science Forum, 3575–78. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-960-1.3575.

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Shao, Zhuoping, e Fuli Wang. "Interlaminar Fracture Properties of Bamboo". In The Fracture Mechanics of Plant Materials, 147–97. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-9017-2_8.

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Ehrlich, Hermann. "Bamboo Corals as Living Bone Implants". In Biological Materials of Marine Origin, 195–99. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9130-7_10.

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Low, I. M., Z. Y. Che, Bruno A. Latella e K. S. Sim. "Mechanical and Fracture Properties of Bamboo". In Fracture of Materials: Moving Forwards, 15–20. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-994-6.15.

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Atti di convegni sul tema "Bamboo materials":

"Confined Bamboo Guadua LaminatE – CBGL". In Non-Conventional Materials and Technologies. Materials Research Forum LLC, 2018. http://dx.doi.org/10.21741/9781945291838-28.

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Fujiyoshi, Kazuo, Takao Ueda, Hitoshi Takagi e Masayuki Tsukagoshi. "Mechanical Properties and Durability of Bamboo Fibers/Bamboo-Fiber-Mixed Spray Mortar for Slope Protection". In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.1.

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Abstract (sommario):

Conventionally, short fibers such as steel and synthetic fibers have been mixed into spray mortar used for slope protection to enhance resistance against cracking and durability. However, in the quest of higher performance fiber-reinforced mortar with reduced impact on the environment, natural fibers such as bamboo fibers may play a vital role. Thus, the tensile strength and the bond strength of bamboo fibers used for spray mortar were examined by laboratory tests. The mechanical properties of bamboo-fiber-reinforced spray mortar were examined under cyclic wet and dry conditions along with its resistance against freezing and thawing by a spray test. It was confirmed that 0.75% mixture of bamboo fibers in spray mortar successfully improved mechanical properties and durability. These include adhesion strength to the base surface following exposure to cyclic wet/dry conditions and overall resistance against freezing/thawing. Moreover, higher compressive strength, flexural toughness and adhesion strength to the base surface were achieved by further mixing in vinylon fibers or fly ash in addition to bamboo fibers.

Greco, Silvia, e Luisa Molari. "Flexural Behavior of Six Species of Italian Bamboo". In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.723.

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The good mechanical performance of bamboo, coupled with its sustainability, has boosted the idea to use it as a structural material. In some areas of the world it is regularly used in constructions but there are still countries in which there is a lack of knowledge of the mechanical properties of the locally-grown bamboo, which limits the spread of this material. Bamboo is optimized to resist to flexural actions with its peculiar micro structure along the thickness in which the amount of fibers intensifies towards the outer layer and the inner part is composed mostly of parenchyma. The flexural strength depends on the amount of fibers, whereas the flexural ductility is correlated to the parenchyma content. This study focuses on the flexural strength and ductility of six different species of untreated bamboo grown in Italy. A four-point bending test was carried out on bamboo strips in two different loading configurations relating to its microstructure. Deformation data are acquired from two strain gauges in the upper and lower part of the bamboo beam. Difference in shape and size of Italian bamboo species compared to the ones traditionally used results in added complexity when performing the tests. Such difficulties and the found solutions are also described in this work. The main goal is to reveal the flexural behavior of Italian bamboo as a functionally graded material and to expand the knowledge of European bamboo species toward its use as a structural material not only as culm but also as laminated material.

"Sustainable Building Replacing Normal Construction Materials with Sustainable Materials". In The International Conference on scientific innovations in Science, Technology, and Management. International Journal of Advanced Trends in Engineering and Management, 2023. http://dx.doi.org/10.59544/qvzv4524/ngcesi23p75.

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The construction industry of the world is rapidly developing with the abrupt increase of the urban population. To meet the needs of the evolving industry and the surging population, the need of raw materials for the construction industry is rising day by day. Energy consumption in the building sector is very high. Carbondioxide emission are connected with offsite manufacturing of building materials and components ( cradle to site) .the materials such as cement ,hollow concrete block, bricks, reinforcement bars etc. emit un considerable amount of carbondioxide during the manufacturing process. Carbondioxide emission from 1 meter cube of coarse aggregate, fine aggregate and cement are 25.47 kg, 63 kg and 417.6kg respectively. Embodied energy can be consumed directly in construction of building and other relative processes or indirectly for extracting raw materials manufacturing the building materials and relative products and transporting. In the present study we are entirely replacing the traditional material with sustainable material. Construction industry consumes more than 50 percentage of the raw materials obtained from the earth’s crust. In the nearby future these resources will get emptied. So it’s time to find the suitable sustainable alternative for the building components. Geopolymer concrete is the new development in the field of building construction in which cement is totally replaced by pozzolanic material like fly ash and activated by alkaline solution. This gives the effect of concentration of sodium hydroxide, temperature and duration of overheating on compressive strength of fly ash based geopolymer concrete. The Wool Glass Shell Brick (WGSB) is filled with waste materials from plants and other industries. Bamboo reinforced concrete construction follows the same design, mix proposition and construction techniques as used for steel reinforced. Steel reinforcement is replaced with bamboo reinforcement. Natural materials, bamboo has been widely used for many purposes. Mainly as a strength bearing material. Then wool glass shell brick, geopolymer concrete slab reinforced with bamboo, and geopolymer concrete block are manufactured. The manufactured materials are subjected to their respective tests and prototype is also constructed. From the study of materials, it is observed that percentage economy can be achieved using this sustainable material .The test results showed that the compressive strength, tensile strength and of the manufactured materials are much better than the conventional construction materials.

Yasin, Iskandar, Agus Priyanto e Zainul Faizin Haza. "Bamboo Green Materials for Environmental Sustainability Constructions". In The 7th Engineering International Conference (EIC), Engineering International Conference on Education, Concept and Application on Green Technology. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0009008602060212.

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Khatib, J., Ali Hussein Jahami, Mohammed Sonebi e Adel Elkordi. "Shear Behavior of Bamboo Reinforced Concrete Beams". In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.730.

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This research work aimed to study the usage of Bamboo strips as shear reinforcement in reinforced concrete (RC) beams. Four beams were considered in this study. The flexural reinforcement for all beams was the same. As for shear reinforcement, one beam was reinforced with conventional shear reinforcement with spacing (s=180 mm), while the other three beams were reinforced with bamboo strips with three different spacings (s=180 mm, s= 90 mm, and s=60 mm). The beams were subjected to a four-point bending test to plot the load-deflection curve for each beam. Results showed that the beam reinforced with bamboo strips spaced at 180 mm has 30% higher shear capacity than the beam with conventional shear reinforcement at the same spacing. Also, as the spacing of bamboo strips decreased, the shear capacity of beams increased nonlinearly.

"Bamboo-Piles Analysis for Slope Stability". In Non-Conventional Materials and Technologies. Materials Research Forum LLC, 2018. http://dx.doi.org/10.21741/9781945291838-3.

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Aguilar Larrinaga, Roberto, Laia Haurie Ibarra, Ana Maria Lacasta Palacio e Marc Tous Coll. "Bamboo Connection Technology for Lightweight Structures". In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.872.

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Abstract (sommario):

Bamboo construction is often related to traditional and vernacular architecture, which is found mostly in rural areas, where, for the construction, local people apply diverse techniques learned in an empirical way and passed on from generation to generation. However, in the last years, many modern constructions with bamboo have been developed around the world. At the same time, many connections have been designed for permanent and ephemerals lightweight structures. However, most of them do not have standardization and mechanical testing, because it is expensive or there are no means to do it. Therefore, it is required to create a technology classification for the most used existing connections, starting with the traditional way to join canes until the contemporary connections developed with high technology. In this context, connections are a challenge to be developed, as currently there is no normative in bamboo to follow and create standardization.

Takagi, H., H. Mori e M. Nakaoka. "Damping performance of bamboo fibre-reinforced green composites". In MATERIALS CHARACTERISATION 2015. Southampton, UK: WIT Press, 2015. http://dx.doi.org/10.2495/mc150221.

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Alamsyah, Alamsyah, Josh Fortuna Arruan, Andi Mursid Nugraha Arifuddin, Muhammad Uswah Pawara e Faisal Mahmuddin. "A Study of Alternative Materials for Sail Mast of Sandeq". In The 5th EPI International Conference on Science and Engineering (EICSE) 2021. Switzerland: Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-w8hlty.

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Sandeq is a type of outrigger sailing boat used by Mandar fishermen to catch fish as well as a mode of transportation between islands. Sandeq boat has a mast made of bamboo that is called pattung. Recently, the raw material for the mast is very rare, so it is necessary to find alternative materials with equal quality and strength. In this study, numerical simulations were carried out by modeling masts made of aluminum, fiberglass and bamboo using Finite Element Method (FEM). The workload used is the maximum load of the main sail. The results showed that alternative materials that can replace bamboo are aluminum 6061 (AL 6061) and fiberglass (FRP). By applying the caseload on the Sandeq mast, it is found that the AL 6061 experiences stress with 78 MPa, and FRP experiences stress with 150 MPa. Both of these materials are suitable for use as an alternative material for the Sandeq mast with a safety factor SF ≥ 5.