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Article
Publication date: 20 March 2009

R.X. Cheng

The purpose of this paper is to study interactions between water‐based polymer isocyanate (WPI) adhesive and bamboo by means of differential scanning calorimetry (DSC).

Abstract

Purpose

The purpose of this paper is to study interactions between water‐based polymer isocyanate (WPI) adhesive and bamboo by means of differential scanning calorimetry (DSC).

Design/methodology/approach

The method of adapting new reference substance replacing aluminium was used due to the special characteristic of WPI adhesive when studying reactions between WPI adhesive and bamboo.

Findings

The methods of changing reference substance could counteract effect of water in the sample on DSC measurement. The results of DSC analysis showed that hardener of WPI adhesive can react with water and also with ‐OH in bamboo and matrix of WPI adhesives. That is to say that a competition exists between urethane formation (covalent bonding of isocyanate with hydroxyl groups in bamboo and matrix in WPI adhesive) and urea formation (isocyanate consumption due to the reaction with water) during the operation of glued bamboo products.

Research limitations/implications

The method of changing reference substance can be used for other DSC samples in which water cannot be conveniently removed, but this method requires that weight of reference substance to be exactly the same as the sample used in DSC measurement. So accuracy of weighing was very important in this DSC measurement.

Practical implications

The method developed in this paper provides a simple and practical solution to studying interactions between WPI adhesive and bamboo by means of DSC.

Originality/value

Changing reference substance was brought forward as a new method of counteracting effect of water in the sample on DSC measurement. The understanding gained through this study could help improve bonding properties of glued bamboo products.

Details

Pigment & Resin Technology, vol. 38 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 14 April 2022

Ezra Kassa Hailemariam, Leule Mebratie Hailemariam, Ermias Adane Amede and Denamo Addissie Nuramo

Bamboo is still a traditional material that requires additional development before it can be considered as a modern and reliable alternative to steel, wood, and concrete…

Abstract

Purpose

Bamboo is still a traditional material that requires additional development before it can be considered as a modern and reliable alternative to steel, wood, and concrete. When compared to the huge volumes of information available on timber and concrete, bamboo has a little quantity of information. When it comes to estimating bamboo structures, there are not many options. As a result, pinpointing the key qualities and events that aid or impede bamboo's integration into the construction sector is vital.

Design/methodology/approach

Factor analysis (FA) was used for summarizing and reducing data to significant ones in identifying barriers, benefits and potentials of using bamboo materials for construction. In this method, small number of factors was aimed at to explain most of the variances observed in a much larger number of variables. The goal was to identify not-directly-observable barriers and opportunities based on a larger set of observable or measurable indicators identified from literature. It attempted to identify underlying challenges and potentials that lay the patterns of bamboo material usage in the construction sector.

Findings

From the results of FA, six specific components with loadings greater than 0.5 were kept for both the barrier and the advantages of using bamboo Lack of awareness on bamboo material, Unorganized supply chain, Exclusion from standards, Outperformance of industrial products, Lack of innovation and institutional support and Bamboo's mechanistic limitation was considered to be the root causes of all barriers. On the other end, structural suitability of bamboo, viable timber alternative, meeting sustainability's demand, attractive economic model, cost effective material, positive social implications were labeled as benefits of bamboo. Finally, major recommendation regarding research, facility, institutionalizing and resource management were forwarded.

Originality/value

Ethiopia is a major bamboo producer in Africa. The bamboo sector, on the other hand, remains a part of the undeveloped and informal rural economy, preventing it from reaching its full potential. Despite technological advancements, bamboo is not commonly used in construction. As a result, using bamboo as a building material is frowned upon. In order to take effective action to accommodate bamboo as an alternative building material, significant challenges, benefits, and potential of the material must be stated with this purpose in mind.

Details

Engineering, Construction and Architectural Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 19 October 2021

Tong Wang, Jing Di and Hongliang Zuo

In view of the defects of glued wood beams, a new composite member – reconstituted bamboo board reinforced glued wood beams is proposed to improve the bearing capacity of…

Abstract

Purpose

In view of the defects of glued wood beams, a new composite member – reconstituted bamboo board reinforced glued wood beams is proposed to improve the bearing capacity of glued wood beams.

Design/methodology/approach

The bending test studied the ordinary glulam beams and the reinforced glulam beams with different layer numbers and different layer thicknesses by comparing with six kinds of glulam beams strengthened with bamboo scrimber and one kind of ordinary glulam beams and used the method of third-point stepwise loading on the glulam beams strengthened with bamboo scrimber.

Findings

The bamboo scrimber improved the bending behavior of the ordinary glulam beams. The 10 mm bamboo scrimber layer can meet the requirements of the maximum ultimate bending capacity and minimize the defects. So 10 mm bamboo scrimber layer was the optimal thickness. During the loading process, the strain change of the normal section of the reconstituted bamboo board reinforced glued wood beam basically conforms to the plane section assumption.

Originality/value

The bending rigidities of the glulam beams strengthened with bamboo scrimber increased up to 28.25%, 8.53% and 76.67%, and the ultimate bending capacity increased from 83.44% to 99.34% with the increase of the bamboo scrimber plate layers (the replacement rate). The ultimate bending capacities and the bending rigidities of the glulam beams strengthened with bamboo scrimber increased to 52.32%∼60.18% and 90.07%∼99.34% with the changing of the bamboo scrimber thicknesses from 7.1 mm to 25 mm.

Details

International Journal of Structural Integrity, vol. 13 no. 1
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 16 June 2021

Nachiappan Sukumar, Mekonnen Bayeleyegn and Sampath Aruna

Recently, composites have concerned considerable importance as a potential operational material. Lots of work have been carried out to enhance the mechanical properties of…

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Abstract

Purpose

Recently, composites have concerned considerable importance as a potential operational material. Lots of work have been carried out to enhance the mechanical properties of composites. The main aim of this paper is to develop bamboo mat as reinforcing material with bagasse fiber as filler using epoxy resin matrix composite.

Design/methodology/approach

In this research, the effect of fiber surface treatments on mechanical properties of epoxy resin composite with bagasse as filler has been developed and investigated. The extracted bamboo fibers were treated with NaOH to improve the surface roughness fiber. Using treated and untreated bamboo fiber handwoven mat has been produced to be used as reinforcement and bagasse fiber has been converted into powder to be filled as filler. Composite material is fabricated using bamboo fiber and bagasse fiber as filler with epoxy resin as a matrix using hand layup technique.

Findings

Then, tensile, flexural and compressive strength and water absorption tests were conducted on sodium hydroxide treated and untreated fiber composites. The test results comparing with and without alkali treated composites show that there was significant change in their strength and water absorption properties on alkali treated fiber.

Originality/value

This study is an original research paper.

Details

Research Journal of Textile and Apparel, vol. 26 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 13 August 2018

Aidy Ali, Wei Kuan Ng, Faiz Arifin, Kannan Rassiah, Faiz Othman, Shauqi Hazin and Megat Hamdan Megat Ahmad

The purpose of this paper is to investigate the fracture properties of hybrid woven bamboo (WB)/woven e-glass (EG) fiber composites with various layer arrangements. This…

Abstract

Purpose

The purpose of this paper is to investigate the fracture properties of hybrid woven bamboo (WB)/woven e-glass (EG) fiber composites with various layer arrangements. This paper utilized a specific type of bamboo species named Gigantochloa Scortechinii (Buluh Semantan).

Design/methodology/approach

In these experiments, unsaturated polyester, woven EG and WB fibers were prepared through the hand lay-up technique. The composite bamboo strips were prepared in 1.5 mm thickness. The strips are woven to make a single layer. The layer was then laminated into several thicknesses. The specimens were then characterized using compact tension fracture tests.

Findings

The fracture toughness of 12–14 MPa was obtained. These findings suggest that this hybrid bamboo composite provides superior fracture strength that is equivalent with steel alloy and is extremely a good alternative for reinforcing fibers to combat fracture failures of materials and structures.

Originality/value

In this paper, experimental determination of newly developed composite made of WB and woven EG is presented.

Details

International Journal of Structural Integrity, vol. 9 no. 4
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 20 June 2016

Shih-Hsuan Chiu, Ivan Ivan, Cheng-Lung Wu, Kun-Ting Chen, Sigit Tri Wicaksono and Hitoshi Takagi

Stereolithography is a well-established technique for producing complex part for rapid prototyping purpose by using UV or laser as a source for curing process. This…

Abstract

Purpose

Stereolithography is a well-established technique for producing complex part for rapid prototyping purpose by using UV or laser as a source for curing process. This technique has been implemented in a lot of industrial sectors. However, the parts fabricated by this technique exhibit low mechanical and thermal properties hindering a fast-growing application. The purpose of this paper is to propose a new method of digital light rapid prototyping (DLRP) system and investigate the effect of the addition of bamboo fiber with surface modification on improvement of mechanical properties of urethane diacrylate/bamboo composite.

Design/methodology/approach

Test specimens were fabricated using aliphatic urethane diacrylate photopolymer as matrix material and bamboo fiber as reinforce material. Adhesion between matrix and reinforce materials is a big issue in compositing, especially when handling bamboo as hydrophilic material and urethane diacrylate as hydrophobic material. To overcome this problem, two surface modifications of bamboo fiber, alkali treatment and silane treatment, were implemented.

Findings

As a result, bamboo fiber can increase mechanical properties of urethane diacrylate photopolymer fabricated by rapid prototyping system.

Originality/value

In this paper, the authors investigate the effect of the addition of bamboo powder with surface modification on mechanical properties. Test specimens were fabricated using aliphatic urethane diacrylate photopolymer as matrix material and bamboo powder as reinforce material.

Details

Rapid Prototyping Journal, vol. 22 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 11 May 2012

Arun Jyoti Nath and Ashesh Kumar Das

The present study seeks to evaluate the role of village bamboo management in the rural landscape of North East India in global climate change mitigation.

Abstract

Purpose

The present study seeks to evaluate the role of village bamboo management in the rural landscape of North East India in global climate change mitigation.

Design/methodology/approach

A set of 100 home gardens and 40 bamboo groves were selected from Irongmara and Dargakona village, in Cachar district, Assam, North East India through random sampling. Sampling was done mostly for smallholders. Culm growth, carbon storage, carbon sequestration and carbon in litter floor mass and soil of bamboo growing areas in homegarden was explored from 2003‐2007.

Findings

Culm growth extension revealed the brief periodicity of culm growth in a single growth period. Of the total carbon storage soil contributed 84.6 per cent of the total (50.1 Mg ha−1) followed by carbon in above ground vegetation 15 per cent (9 Mg ha−1) and carbon in litter floor mass 0.4 per cent (0.2 Mg ha−1).

Practical implications

Bamboo plantation development and its management in home gardens has social, ecological and economical benefits for the rural life in North East India and its promotion can become an effective choice for climate change mitigation strategy.

Originality/value

Bamboo forms an important component in the traditional home garden system of North East India where the practice of bamboo cultivation and management provides an important sink for CO2. Village bamboos play an important role in local economics, societies and environments and, considering its potential to mitigate global climate change, the authors recommend the promotion of bamboo in agroforestry expanding practices and rehabilitation of degraded lands. Management of village bamboos in rural landscape is highlighted in context to environmental sustainability and as a sink measure under the Clean Development Mechanism (CDM) of Kyoto Protocol.

Details

International Journal of Climate Change Strategies and Management, vol. 4 no. 2
Type: Research Article
ISSN: 1756-8692

Keywords

Book part
Publication date: 8 October 2018

Tamanna M. Shah

This chapter examines the bamboo-based livelihoods of the tribal artisans of Tripura and studies entrepreneurship, through the perspective of innovative small and medium…

Abstract

This chapter examines the bamboo-based livelihoods of the tribal artisans of Tripura and studies entrepreneurship, through the perspective of innovative small and medium enterprises, as a way to achieve sustainable development. Under a cluster-based approach of the Tripura Bamboo Mission, this chapter intends to understand how tribal entrepreneur’s belief in sustainability motivates them to develop and enhance livelihood opportunities. It is in addressing this basic question of an entrepreneur’s ‘drive’ in achieving sustainable livelihood that the development goals are met.

Details

Entrepreneurship and the Sustainable Development Goals
Type: Book
ISBN: 978-1-78756-375-9

Keywords

Article
Publication date: 2 August 2019

Giridharan R., Raatan V.S. and Jenarthanan M.P.

The purpose of this paper is to study the effects of fiber length and content on properties of E-glass and bamboo fiber reinforced epoxy resin matrices. Experiments are…

Abstract

Purpose

The purpose of this paper is to study the effects of fiber length and content on properties of E-glass and bamboo fiber reinforced epoxy resin matrices. Experiments are carried out as per ASTM standards to find the mechanical properties. Further, fractured surface of the specimen is subjected to morphological study.

Design/methodology/approach

Composite samples were prepared according to ASTM standards and were subjected to tensile and flexural loads. The fractured surfaces of the specimens were examined directly under scanning electron microscope.

Findings

From the experiment, it was found that the main factors that influence the properties of composite are fiber length and content. The optimum fiber length and weight ratio are 15 mm and 16 percent, respectively, for bamboo fiber/epoxy composite. Hence, the prediction of optimum fiber length and content becomes important, so that composite can be prepared with best mechanical properties. The investigation revealed the suitability of bamboo fiber as an effective reinforcement in epoxy matrix.

Practical implications

As bamboo fibers are biodegradable, recyclable, light weight and so on, their applications are numerous. They are widely used in automotive components, aerospace parts, sporting goods and building industry. With this scenario, the obtained result of bamboo fiber reinforced composites is not ignorable and could be of potential use, since it leads to harnessing of available natural fibers and their composites rather than synthetic fibers.

Originality/value

This work enlists the effect of fiber length and fiber content on tensile and flexural properties of bamboo fiber/epoxy composite, which has not been attempted so far.

Details

Multidiscipline Modeling in Materials and Structures, vol. 15 no. 5
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 22 June 2018

Shariful Islam and Shaikh Md. Mominul Alam

The purpose of this paper is to investigate the acoustic properties of needle-punched nonwovens produced of bamboo, banana and hemp fibers blended with polyester (PET) and…

Abstract

Purpose

The purpose of this paper is to investigate the acoustic properties of needle-punched nonwovens produced of bamboo, banana and hemp fibers blended with polyester (PET) and polypropylene (PP) as they are supportive enough to minimize sound transmission inside the automobiles.

Design/methodology/approach

Textile materials like bamboo, banana and hemp blended with PET and PP in the ratio of 35:35:30 were applied to make the web. The needle-punching technique was applied to each web for three times to form a full nonwoven textile composite. The concept of PET/PP blend with natural fibers was to enhance the consistency and thermoform propensity of the composites. When nonwoven textile composites were placed in between a sound source and a receiver, they absorbed annoying sound by dissolving sound wave energy. Sound absorption coefficient was measured by the impedance tube method as per ASTM C384 Standard. Bamboo/PET/PP composite showed the highest absorption coefficient in most of the frequencies.

Findings

Physical and comfort properties were tested for the composites and it was noticed that bamboo/PET/PP composites with its compressed structure showed a better stiffness value, lesser thermal conductivity, lesser air permeability, better absorption coefficient and highest sound transmission loss compared to other two composites. At 840 Hz, the absorption coefficient of bamboo/PET/PP remained in satisfactory level but it was inferior by 20 percent in banana/PET/PP. Conversely at more frequencies like 1,680 Hz, there was a decrease from the target level in all the nonwovens composites, which could be enhanced by raising the thickness of the nonwovens, and all these properties of bamboo/PET/PP were considered appropriate for controlling noise inside the vehicles.

Practical implications

This research will provide facilities to decrease noise inside the vehicles. It will improve the apparent value of the automobiles to the traveler and also provide a sensible goodwill to the manufacturer.

Originality/value

This research will open several ways for the development of different nonwoven composites, particularly for the sound absorption and will open possible ways for the scholars to further study in this field.

Details

International Journal of Clothing Science and Technology, vol. 30 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

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