scholarly journals Sustainable and Renewable Bio-Based Natural Fibres and Its Application for 3D Printed Concrete: A Review

2020 ◽  
Vol 12 (24) ◽  
pp. 10485
Author(s):  
Salmabanu Luhar ◽  
Thadshajini Suntharalingam ◽  
Satheeskumar Navaratnam ◽  
Ismail Luhar ◽  
Julian Thamboo ◽  
...  
Keyword(s):  
Material Selection ◽  
New Technology ◽  
Real Life ◽  
Natural Fibre ◽  
Environmental Benefits ◽  
Natural Fibres ◽  
Conventional Concrete ◽  
Sustainable Building ◽  
Fibre Composites ◽  
3D Printed

The concept of sustainability and the utilization of renewable bio-based sources have gained prominent attention in the construction industry. Material selection in construction plays a significant role in design and manufacturing process of sustainable building construction. Several studies are being carried out worldwide to investigate the potential use of natural fibres as reinforcement in concrete with its noticeable environmental benefits and mechanical properties. 3D printed concrete (3DPC) is another emerging technology, which has been under-developed for the past decade. The integration of reinforcement is one of the major challenges in the application of this new technology in real-life scenario. Presently, artificial fibres have been used as a reinforcement material for this special printable concrete mixture. However, natural fibre composites have received significant attention by many 3DPC constructions due to their lightweight energy conservation and environmentally friendly nature. These benchmarking characteristics unlock the wider area of natural fibres into the composite sector and challenge the substitution of artificial fibres. Hence, this paper presents a comprehensive review on the current practice and advantages of natural fibres in conventional concrete construction. Subsequently, with a view to the future efficient 3DPC construction, the potentials of natural fibres such as eco-friendly, higher impact, thermal, structural, and fire performance over the artificial fibres were highlighted, and their applicability in 3DPC as composites was recommended.

Grading of Biofibres for Use in Natural Fibre Composites

2011 ◽  
Vol 410 ◽  
pp. 23-23
Author(s):  
A. Crosky ◽  
Mindy Loo ◽  
Mohd Zakaria ◽  
Paresh Parmar ◽  
Andrew Beehag ◽  
...  
Keyword(s):  
Mechanical Behaviour ◽  
Fibre Composite ◽  
Mass Density ◽  
Natural Fibre ◽  
Cross Sectional Area ◽  
Environmental Benefits ◽  
Natural Fibres ◽  
Sectional Area ◽  
Cross Sectional ◽  
Fibre Composites

Natural fibres obtained from plant sources are attractive as a replacement for glass fibres in fibre reinforced plastic composites because of their environmental benefits. However, unlike synthetic fibres, natural plant fibres show considerable variability in their mechanical properties due to the effects of climate, soil quality, time of harvest, etc. Variability in properties of the fibres translates into variability in the properties of products made from natural fibre composites and this is a major obstacle to the more widespread use of these materials. One way to accommodate fibre variability would be to test the mechanical behaviour of samples from incoming batches of fibres and assign a grade to each batch, which could then be taken into account when the fibres are subsequently used to produce composite products. However, conventional methods of determining mechanical behaviour require test samples of constant cross-sectional area but, unfortunately, this is not the case for natural fibres which vary in shape, width and lumen size, from place to place along the fibre. Insight as to how to deal with such variability is provided from the textiles industry where strength is determined as a function of linear mass density rather than cross-sectional area. This paper examines the feasibility of using a similar approach for grading natural fibres for use in natural fibre composite products.

scholarly journals Characterisation of Natural Fibres for Sustainable Discontinuous Fibre Composite Materials

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2129 ◽  
Author(s):  
Ali Kandemir ◽  
Thomas R. Pozegic ◽  
Ian Hamerton ◽  
Stephen J. Eichhorn ◽  
Marco L. Longana
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Material Selection ◽  
Fibre Composite ◽  
Single Fibre ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Fibre Composites ◽  
Waste Flow ◽  
Mechanical Performances

Growing environmental concerns and stringent waste-flow regulations make the development of sustainable composites a current industrial necessity. Natural fibre reinforcements are derived from renewable resources and are both cheap and biodegradable. When they are produced using eco-friendly, low hazard processes, then they can be considered as a sustainable source of fibrous reinforcement. Furthermore, their specific mechanical properties are comparable to commonly used, non-environmentally friendly glass-fibres. In this study, four types of abundant natural fibres (jute, kenaf, curaua, and flax) are investigated as naturally-derived constituents for high performance composites. Physical, thermal, and mechanical properties of the natural fibres are examined to evaluate their suitability as discontinuous reinforcements whilst also generating a database for material selection. Single fibre tensile and microbond tests were performed to obtain stiffness, strength, elongation, and interfacial shear strength of the fibres with an epoxy resin. Moreover, the critical fibre lengths of the natural fibres, which are important for defining the mechanical performances of discontinuous and short fibre composites, were calculated for the purpose of possible processing of highly aligned discontinuous fibres. This study is informative regarding the selection of the type and length of natural fibres for the subsequent production of discontinuous fibre composites.

Tensile properties prediction of natural fibre composites using rule of mixtures: A review

2018 ◽  
Vol 38 (5) ◽  
pp. 211-248 ◽  
Author(s):  
Mun Wai Tham ◽  
MR Nurul Fazita ◽  
HPS Abdul Khalil ◽  
Nurul Zuhairah Mahmud Zuhudi ◽  
Mariatti Jaafar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Polymer Composites ◽  
Mixture Models ◽  
Prediction Accuracy ◽  
Physical And Mechanical Properties ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Fibre Composites ◽  
Experimental Values

Rule of mixture models are usually used in the tensile properties prediction of polymer composites reinforced with synthetic fibres. They are less utilized for natural fibre/polymer composites due to natural fibres physical and mechanical properties variability which reduces rule of mixture model's prediction values accuracy compared to the experimental values. This had led to studies conducted by various researchers to improve the existing rule of mixture models to give a better reflection of the true natural fibres properties and enhance the rule of mixture models prediction accuracy. In this paper, rule of mixture model's utilization includes the existing rule of mixture models as well as proposed rule of mixture models which have one or more factors incorporated into existing rule of mixture models for natural fibre/polymer composites tensile properties prediction are reviewed.

Potential of Sisal Reinforced Biodegradable Polylactic Acid and Polyvinyl Alcohol Composites

2010 ◽  
Vol 425 ◽  
pp. 167-178 ◽  
Author(s):  
Iman M. Taha ◽  
Gerhard Ziegmann
Keyword(s):  
Polyvinyl Alcohol ◽  
Polylactic Acid ◽  
Failure Modes ◽  
Single Fibre ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Green Composite ◽  
Surrounding Matrix ◽  
Pull Out ◽  
Fibre Composites

The application of natural fibres as polymer reinforcement is of extreme interest, especially in combination with biodegradable polymers. Such “green” composite represent a step forward to eco-design and environmentally friendly applications. The use of biodegradable polylactic acid (PLA) on the basis of renewable resources in addition to the biodegradable polyvinyl alcohol (PVA) on petrochemical basis is compared in this study with the application of polypropylene (PP) as a surrounding matrix for sisal fibres. According to the law of similarities, the chemically similar structure of natural fibres and PVA and PLA provides stronger fibre-matrix bonding characteristics compared to PP. This was experimentally validated applying single-fibre pull-out tests, where the effect of improved bonding is further investigated in terms of tensile and impact composite behaviour. SEM investigation was further applied to describe failure modes of natural fibre composites.

scholarly journals Performance Evaluation of Concrete by using Sisal Fibre and Bamboo Fibre

2018 ◽  
Vol 8 (3) ◽  
Author(s):  
Md Azhar Hoda ◽  
Premit Kumar Patil
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Natural Material ◽  
Conventional Concrete ◽  
Sisal Fibre ◽  
Compression Phase ◽  
Uniform Manner

Concrete is the most widely used material throughout the world. Concrete is a brittle material which is good in compression but it is weak in tension, this leads to the formation of cracks, these cracks extend and reach the compression phase and finally the member breaks. Cracks are the major reason for the failure of the structure. Many attempts have been made to improve the tensile strength of concrete. It becomes necessary to find a best method to improve the strength of concrete by replacing cement with some natural material. So to increase the tensile strength and compressive strength of concrete, technique of introduction of natural fibres in concrete has been done. The fibres are distributed randomly in a uniform manner. The post cracking response of concrete can be nullified with the addition of natural fibres into concrete. This is known as natural fibre reinforced concrete. Replacement of cement by 0, 0.5, 1, 1.5, 2, 2.5 and 3% of natural fibres. The wet concrete mix will be tested for workability and concrete specimens like Cubes, Cylinders and Beams will be cast to determine the Compressive strength, tensile strength and Flexural strength respectively. Addition of natural fibre were done for M30 and M25 mix. The specimens were tested for 28 days.The test results showed increment in the all properties of concrete compared to conventional concrete. In M30 Grade concrete there was 18.17% increase in compressive strength compared to conventional concrete, highest value of compressive strength was obtained for 1.5% and for 2% addition of natural fibres for M25 grade concrete has shown a increment by 10.6% compared to conventional concrete. In M30 grade concrete, the highest tensile strength was obtained for 1% addition of natural fibres, compared to conventional concrete there was a increment of 9.75% and in M25 grade concrete the strength was highest for 1.5% addition of fibres, there was 7.63% increment compared to conventional concrete. The highest value of flexural strength was obtained for 1% of addition of natural fibres to M30 grade concrete and the increment was by 10% compared to conventional concrete. In M25 grade concrete the highest value was obtained for 1% addition of fibres and the increment was by 7% compared to conventional concrete.

scholarly journals Tensile Properties of Natural Fibre Reinforced Thermoset Composites

2005 ◽  
Vol 14 (1) ◽  
pp. 096369350501400 ◽  
Author(s):  
T. Yamamoto ◽  
L. Medina ◽  
R. Schledjewski
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Microscopic Observation ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Fracture Surfaces ◽  
Thermoset Composites ◽  
Fibre Composites

The processing and mechanical properties of natural fibre composites were investigated. Three kinds of kenafhemp-non-woven materials impregnated with an acrylic matrix were used. The natural fibre composites were press moulded and showed good mechanical properties. It was clarified on the basis of the microscopic observation of the fracture surfaces that the adhesion of natural fibres and matrix was important in order to obtain good mechanical properties.

scholarly journals A review of sugar palm (Arenga pinnata): application, fibre characterisation and composites

2017 ◽  
Vol 13 (4) ◽  
pp. 678-698 ◽  
Author(s):  
M.R.M. Huzaifah ◽  
S.M. Sapuan ◽  
Z. Leman ◽  
M.R. Ishak ◽  
M.A. Maleque
Keyword(s):  
Review Paper ◽  
Engineering Application ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Palm Tree ◽  
Content Type ◽  
Fibre Composites ◽  
Palm Sugar ◽  
Sugar Palm Fibre ◽  
Palm Fibre

Purpose The purpose of this paper is to present the review of natural fibre composites as well as a specific type of fibre, i.e., sugar palm fibre and its composites. Design/methodology/approach The approach of this review paper is to present previous work on natural fibres and their composites. Then a review of several important aspects such as history, origin, botanic description, distribution, application and characterisation of sugar palm tree, and its fibre is presented. Finally a review of properties and characterisation of sugar palm composites is presented. Findings Findings of this review include the potential application of natural fibres and their composites for engineering application, the use of sugar palm and its fibres, as well as the suitability of sugar palm composites in engineering application after conducting review of their performance and characterisation. Originality/value The value of this review is to highlight the potential of natural fibres, natural fibre composites, sugar palm, sugar palm fibres and sugar palm composites as materials for engineering applications.

scholarly journals Comparative Analysis of Natural Fibre Reinforced Composite Material Using ANSYS

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
K. G. Saravanan ◽  
R. Prabu ◽  
A. Sivapragasam ◽  
Nahom Daniel
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Stress ◽  
Equivalent Stress ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Green Composites ◽  
Stress Strain ◽  
Element Analysis ◽  
Fibre Composites

The regulations of legislative bodies regarding the recycling and reusage of automotive materials has caused a great deal of obligation among automotive manufacturers to use natural fibres or green composites. Green composites or more commonly known as bio-composites are made up of natural fibres. Natural fibres are used by humankind since prehistoric times. The natural fibre is obtained from plants as well as animals. Since the natural fibre is obtained from natural as well as biological resources, it is biodegradable and recyclable. This paper presents the study and analysis conducted to address the suitability of natural fibre in the automotive industry. This paper discusses the finite element analysis of four different natural fibre composites used for making car door panel, i.e., flax, jute, sisal, and leather are taken for the material study. This paper helps to find the effectiveness of each of the four natural fibre composites that have already been used in the automotive sector. This paper includes the analysis of four different natural fibres with and without the addition of the aluminium as the reinforcement material. This project revolves around the design of the composite fibre sheet and analysis of the mechanical parameters such as equivalent stress, shear stress, strain, deformation, and so on. The studies and observations of the analysis showed that the natural fibre with the aluminium reinforcement proved to be much stronger than that without the reinforcement. The results of finite element analysis showcased lowest total deformation and equivalent strain in the flax as 1.026 m and 0.017 mm/mm, respectively. However, sisal showed the lowest equivalent stress and shear stress which were 68.09 and 38.178 MPa, respectively. Additionally, leather showed the highest amount of stress, strain, and deformation, and hence leather was deemed to have undesirable properties regarding the usage in car door panels. All the materials except leather were found to be safe under the loading conditions. Hence, the flax fibre is recommended by the project to have superior properties compared to the other materials.

scholarly journals Modelos en GeoGebra para el plano y el espacio. Impresión de materiales 3D para su uso en el aula

2020 ◽  
Vol 9 (1) ◽  
pp. 132-146
Author(s):  
Gustavo Daniel Aguilar
Keyword(s):  
3D Printing ◽  
New Technology ◽  
Real Life ◽  
Mathematical Education ◽  
Student Comprehension ◽  
3D Printers ◽  
3D Printed ◽  
Printed Materials ◽  
Near Future ◽  
Model Structures

RESUMENÚltimamente las impresoras 3D se han vuelto más accesibles a los usuarios y los usos de este tipo de impresoras se han multiplicado. Es una nueva tecnología que seguramente va a ser muy utilizada en los tiempos venideros y es de orden para los docentes investigar y reflexionar sobre los posibles usos de esta tecnología en el aula. Hace un tiempo que trabajo con la modelización de estructuras en dos dimensiones, pues ayuda a mis alumnos a comprender de mejor manera la interacción de la matemática en su vida cotidiana. Además de ser motivante y tener un gran contenido de funciones y cálculo, dos partes del currículo que siempre son muy abstractas y que necesitan ser acercadas a la realidad de nuestros alumnos para su mejor comprensión. En este artículo se comentará una experiencia didáctica y también se mostrará de qué manera se pueden usar las herramientas de GeoGebra para modelar estructuras, las cuales pueden ser impresas en 2 y 3 dimensiones. Luego se mostrará como imprimir estas estructuras desde GeoGebra, comentando algunas dificultades que he encontrado, y se hablará de otros usos para las impresiones 3D en el aula de Matemática.  Palabras claves: GeoGebra; Educación Matemática; Modelización, Impresiones 3D RESUMOUltimamente, as impressoras 3D tornaram-se mais acessíveis aos usuários e os usos desse tipo de impressoras têm-se multiplicado. Trata-se de uma nova tecnologia que será certamente muito utilizada nos próximos tempos pelo qual é preciso que os professores investiguem e reflitam sobre as possíveis utilizações desta tecnologia na sala de aula. Há algum tempo que trabalho com a modelação de estruturas bidimensionais, pois ajuda os meus alunos a compreenderem melhor a interação da matemática na sua vida quotidiana. Além de ser emocionante e ter um alto conteúdo de funções e cálculos, duas partes do currículo que são sempre muito abstratas e que precisam de ser aproximadas à realidade de nossos estudantes para a sua melhor compreensão. Este artigo irá comentar uma experiência de ensino e também mostrar como utilizar as ferramentas do GeoGebra para modelar estruturas, que podem ser impressas em 2 e 3 dimensões. Em seguida, é apresentado como imprimir essas estruturas a partir do GeoGebra, comentando algumas dificuldades que se encontrou, e vai se discutir outros usos para a impressão em 3D na aula de matemática.Palavras-chave: GeoGebra; Educação Matemática; Modelagem, Impressões 3D ABSTRACTLately 3D printers became cheaper and accessible to all users. Also there are many fields in which these kinds of printers are being used and this uses will surely develop in the near future. This is a new technology that will be used more and more and it is necessary for teachers to reflect and investigate over the possible uses of this technology in class. Some time ago, I started working with modeling real life 2 dimensional objects in the Maths class because it makes students realize the interaction between Mathematics and their life. In addition, it makes studying calculus more motivating and enhances student comprehension over such an abstract and unrelated topic to their life.  This are the reasons why in this article I will comment on a didactic experience and I  will explain how to use GeoGebra´s tools to model structures in 2 and 3 dimensions. Also I will show how to print these structures from GeoGebra, commenting on some difficulties I found, and I will comment over other uses for 3D printed materials in the maths class. Keywords:  GeoGebra; Mathematical education; 3D printing, Modeling.

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