[2] . Factors affecting the fresh, hardened, and durability properties of concrete reinforced with coconut fiber are discussed. Basalt fiber has arisen new perspectives due to the potential low cost and excellent mechanical performance, together with the use of environmental friendly coir can be beneficial to the development of sustainable construction. The CHB was added with 1, 2 and 3% pre-treated coconut coir fibers, by weight of cement, at varying coconut fiber lengths of 3, 4.5 and 6 cm during the production. The fly ash based coconut fiber reinforced concrete shows a better performance than ordinary concrete. The coir is a hard, renewable, and biodegradable fiber and is produced by extraction of fiber from waste coconut husk by retting process in mainly coastal areas of Africa, Asia, and America [13]. 02(01):179-182. REFERENCES [1] "Mechanical and dynamic properties of coconut fiber reinforced concrete" Majid Ali, Anthony Liu, Hon Son, Nawawi Chouw Construction and Building Materials 30(2012) 814-825. From the lab results and SEM images of the present research display that glass fibers might be utilized in coconut shell concrete to enhance its mechanical and durability attributes, to accomplish . In an urge to enhance the mechanical properties of concrete, coconut fiber, as a dispersed reinforcement, has been the focus of multiple studies [ 33, 34, 35 ]. Coconut and sisal-fibre reinforced concrete have been used for making roof tiles, corrugated sheets, pipes, silos and tanks (Agopyan, 1988). INTRODUCTION, OBJECTIVES, All the test procedures were done according to the standard ASTM methods. Coconut fiber is stiff and is the strongest among all-natural fibers and can withstand an elongation 4-6 times higher than that of the other fibers [4]. The amount of coconut fiber is tabulated below: Table 2 : Amount of Coconut Fiber Used. Test results for concretes obtained by using water blended with yeast granules are also reported in this paper. Furthermore, Concrete specimens' tests indicate that marble slurry up to 20% and coconut fiber addition 2.0% tend to improve the mechanical performance of hardened Concrete. Coconut fiber reinforced concrete is a castable or sprayable composite material of hydraulic . When coconut fibers are added to mortar, Portland cement concrete or refractory concrete, the flexural strength of the composite is increased from 15% to 85% - depending on the proportion of fibers added and the mix design. of coconut fiber reinforced concrete were compared to plain concrete specimens (without fiber). Class AA concrete mixture of 1:1.5:3 is used with a water-cement ratio . long and randomly mixed with the concrete at . Fiber-reinforced concrete is a construction material produced from cement and cementations materials such as fly ash, slag materials, aggregate, water, and chemical mixtures. Bing C, Zhen W, Ning L. 2012. Abstract- Reinforcement of concrete is necessary to enhance its engineering properties. The common name, scientific name and plant family of coconut fiber is Coir, Cocos nucifera and Arecaceae (Palm), respectively. Coconut fiber (Coir) is mainly classified into four different kinds such as buffering coil, bristle coil, white fibers, and brown fibers. The coconut fiber-reinforced concrete (CFRC) specimens also benefitted from the reinforcing effects of the fiber because the specimens consistently exhibited a higher strength in this environment. However, the research and knowledge on the viability of coconut-fiber-reinforced concrete are scattered. For the 0.6CF, 1.2CF, and 1.8CF specimens, the compressive strength continued to increasing steadily after 546 days. natural fibers are able to become a sustainable additive or replacement for steel reinforced , concrete. Coconut fibres reinforced composites have been used as cheap and durable non-structural elements. Reis (2006) found that coconut fiber-reinforced concrete (CFRC) had greater flexural strength than other natural fiber . This study aims to obtain the effects of fiber length and fiber content on splitting tensile strength behavior of the concrete composite reinforced with coconut fiber. Shrinkage cracking in concrete can be reduced by adding fibers into the concrete mix. The novel interlocking block is made of coconut fibre reinforced concrete (CFRC). (2006) The static properties of plain concrete (PC) and fiber reinforced concrete (FRC) with different fiber volume fractions ranging from 0.5% to 2% . Coconut fiber reinforced concrete (CFRC) may also strengthen members of the building and construction industry who want to "go green" without breaking the bottom line. Results indicate that coconut fiber improved the mechanical performance of concrete due to crack prevention, similar to the synthetic fibers but decreased the flowability of concrete. Specifically, this paper discusses the use of naturally-derived fibers within a cementitious binder. Tests on the Indonesian coconut fiber showed that, compared to the results of previous studies, tensile strength and tension failure improved after the fiber was washed with water and dried. Characterization and Determination of Properties of Sri Lankan Coconut Fibres, Article, Aug 2005, N. H. A. S. Y. Nanayakkara BSc (Botany, Usuf Ismail, PhD R. L. C. Wijesundara BSc, View, Show. The 28-day compression strength of the plain concrete is about 15 MPa, which represents the low strength and poor-quality concrete widely existing in a large number of old buildings. Various other tests were also conducted which made our research work more evidence proof. The mix proportion of 1:2:3 by the weight of ordinary Portland cement, river sand, crushed stone and . For this study, coconut fibres were used as they are freely available in large quantities. The fiber in fiber reinforced concrete adds some strength to the concrete by mechanically reinforcing the concrete. It comes from a renewable source and the fibers or fabrics are 100% bio-degradable. Waqas Ahmad (2020) varies not only the percentage of fiber in Not much importance is conductivity of the composite specimens. was based on the mechanical and dynamic properties of coconut fiber reinforced concrete (CFRC). properties and behavior of natural fiber reinforced concrete (NFRC). reinforced concrete (CFRC). Lastly, we prepared 6/6 inches 3 cubes, in which coconut fiber was reinforced with concrete in 0.25%. The density of coconut fiber reinforced concrete was used as 2.057(Hasan Ali and Sankar,2018). Coconut fibers (Coir fibers) are one of the most popular type of fibers used as concrete reinforcement. Self-compacting concrete has a high flowability that under its own weight without any vibration or impact fills all the parts and chinks of the formwork. In this study, a composite material consists of basalt fiber-reinforced polymer (BFRP) tube-encased coconut fiber-reinforced concrete (CFRC) is developed. The test samples were cast into concrete cylinders and flexural beams. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. Benefits of Coir Coconut Fiber: Coir coconut fiber is eco-friendly and bio-degradable. Tests have shown that coconut fiber has great potential as a replacement for steel as a material for reinforcing concrete. Coconut shell glass-fiber-reinforced concrete with silica fume is a reasonable option to be used as a feasible construction material that is sustainable in the making of concrete for structural applications, which is environmentally friendly, low cost, and has good strength. The sample with 0.25% fiber content achieved the optimum flexural strength but has a lower compressive strength gain when compared 0.5% fiber content. A study by Ali et al. Not only this, we also prepared small blocks of cement and coconut fiber which displayed amazing results for hut making. A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate Sci Rep. 2021 Jun 17 . In the present research, the effect of untreated and treated coconut fibres as an additive in self compacting concrete (SCC) both experimental and microstructure was investigated. There is a need of investigating the behaviour of coconut fibre reinforced concrete to be used in main structural components like beams and columns. Each coconut fiber of diameter exhibited good strength parameters when compared to 10 to 20 um and length 10 cm is chosen. One of the most used natural fiber in different sectors, is coconut COIR which belongs to the Palm family [4]. In low-cost concrete structures, coconut fibers can possibly be utilized as reinforcement. What about coconut fibers and bioplastics? In this present study the durability characteristics of Steel fiber reinforced Self compacting concrete (SFRSCC) is determined for M30 and M40 grade concrete mixes. . The reason for using coconut fibre is their highest toughness amongst natural fibres. It is hard wearing and durable. Experiment findings indicate that marble slurry and coconut fiber decrease the workability of fresh concrete. Among the natural fibers, coconut fibers have the highest toughness. Experimental investigation of natural fiber reinforced concrete in construction industry. Slaney- Paramasivam et al (1984) Conducted a feasibility study of coconut fibre reinforced corrugated slabs of 915 mm,460 mm,10 mm for low-cost housing. Fig. The use of coconut fibres will also lead to better management of these waste fibres. Hussain, R. R., and Morshed, M. A. The increase in fresh density of concrete reinforced with coconut fibers is related to crack prevention since coconut fiber reinforced concrete has fewer plastic shrinkage voids and produces denser concrete. 2.1 Coconut Tree, Coconut and Coconut fibers Natural fibers such as jute, sisal, pineapple, abaca and coir have been studied as a reinforcement and filler in . The aim of this study is to produce a load-bearing concrete hollow block (CHB) with pre-treated coconut fiber passing the required minimum compressive strength. Unlike traditional plastics, which are made from petroleum and fossil fuels, bio-based materials have a smaller carbon footprint. Fiber-reinforced concrete incorporating locally available natural fibers in normal-and high-strength concrete and a performance analysis with steel fiber-reinforced composite . (2012) has studied the mechanical and dynamic properties of coconut fibre reinforced concrete and also they have potential to be used as . From the compressive strength test, it is noticeable that at lower and higher fiber quantity Here are the main advantages of fiber reinforced concrete: Prevents maximum corrosion in civil structures. The most widely used coconut fiber is the brown fiber that is generally highly thick, abrasive, and strong. This makes 0.5% fiber content the best . 0. Fracture toughness and fracture energy of coconut This current study focused on the fire resisting property of coconut fibre reinforced concrete as compared to plain concrete at varying temperatures. banana fiber and coconut coir. This paper describes the in-plane behaviour of the interlocking wallette under earthquake loadings. Coir also has low thermal conductivity, which allows for natural cooling. Minimizes the cavitation damage in structures - navigational locks, bridges, piers, sluice-ways. Natural fiber reinforced concrete. However, coconut fibers improved flexure . During the past two decades, there has been considerable interest in the study of fiber reinforced concrete and its appli cations to several types of structures. addition of coconut fibre to concrete leads to improvement of concrete the toughness torsion and the tensile stress, Further work is however ,required to assess the long term durability of concrete . Coconut fiber is known by its popular name, scientific name, and plant family, which are coconut, Cocos nucifera, and Aceraceae (palm). Z. Silica fume (10% by mass) and super plasticizer (1% by mass) are also added to the CFR-HSC. M25 concrete and Ordinary Portland cement of grade 43 is to be used. It is biodegradable so the impact on environment will be minimal. To improve the status-quo, fiber-reinforced panels may help to address both the structural and thermal issues within a single application. ash based coconut fiber composite cement was replaced with five percentages (10%, 15%, 20%, 25%, & 30%) of class C fly ash. When you try to break fiber-reinforced concrete, the fibers tend to make it so it doesn't just fall apart in big chunks. Characteristics Jute fiber Sisal fiber Sugarcane bagasse fiber Coconut fiber Cellulose content (%) 61-72 66-78 45-55 32-43 Lignin content (%) 12-13 8-11 19-24 41-45 They . Using natural fiber in reinforced composite can reduce not only the dependency on conventional concrete-making material but also environmental impact. Coconut fibres are a form of solid waste and, therefore, the use of these fibres in concrete prompts a compelling strong waste administration technique. Concrete containing hydraulic cement, water, aggregate, and discontinuous discrete fibers is called Fiber reinforced concrete. Fiber Reinforced Concrete Association MTSU Box 19 Murfreesboro, Tennessee 37130 Phone number: (615) 494-7658 Email: info@fiberreinforced.com. It is also beneficial because it is strong, cheap to make, and naturally cooling. By End-users, industrial & commercial infrastructure segment accounted for a notable share in 2018 and is anticipated to exhibit a remarkable growth rate in the following years. The influence of 25 mm-, 50 mm-, and 75 mm-long coconut fibers and 0.5%, 1%, 1.5%, and 2% contents by mass is investigated. The coconut fiber reinforced concrete with 0.5% fiber in-creased by 38.13% for compression and 22.15% under flexural stress compared to the normal concrete. They include materials such as coconut, sisal, jute and sugarcane, and come in varying lengths, geometries and material characteristics. The lengths of the fibers were 25, 50, and 75 mm and the percentages by mass were 1%, 2%, and 3%. The addition of fibers in Coconut fiber - Fibres are strong, light in weight. Standard ASTM procedures in casting of flexural beams and concrete cylinders and the curing of 28-day concrete samples were . The study comprises of comparative statement of properties of coconut fibre reinforced concrete with conventional concrete based on experiments performed in the laboratory. Specifically, the coconut fiber, also known as coir, has been trending option for fiber , reinforcement in the recent years for its low cost, abundance in third-world countries, and low , impact to the environment. decreased workability of concrete if coir fiber is used more than 1% [21]. Coconut Fiber Reinforced Self Compacting Concrete with Steel Fibers Ravinder Kumar B Tech (Civil), Kurukshetra University Abstract: High stream capacity concrete is that solid which under its own particular weight with no vibration or effect fills every one of the parts of the formwork .Such cement is known as self compacting concrete. REFERENCES Afa Austin Waifielate Bolarinma Oluseun Abiola (2008). Coir coconut fiber is water resistant and is the only fiber that is resistant to saltwater damage. Normally, in convectional reinforced concrete we use steel bars which increase the weight as well as the cost of the concrete which cannot be easily affordable to all rulers as well as urban civilians. Int Res J Eng Technol. The selection of coconut fiber is in. In this work, the mechanical properties of coconut fiber reinforced high strength concrete (CFR-HSC) are explored. Four percentages of coconut fibers (0.15, 0.3, 0.45 & 0.60%) having 40mm length were used. The aim of this review is to spread awareness of coconut . Along with durability strength and sorptivity is carried out and comparison is made with Plane self-compacting concrete (SCC) by chemical resistances, Initial Surface Absorption . Preparation of the test specimens: Concrete cubes sizes of 100x100x100 mm and prisms having dimension of 100x100x300 mm were cast for both plain and coconut fibre reinforced concrete for the determination of different properties of concrete. Coconut fiber being the most ductile among all natural fibers has the potential to be used as a reinforcement material in concrete. Coconut husk fibers have a quick drying time . The failure pattern of coconut fiber reinforced concrete was observed. However, with the 4% addition of coconut fibers, compaction becomes problematic, resulting in porous concrete and lower fresh density. The right fiber-reinforced concrete can also provide impact resistance, increase tensile strength and reduce voids in the concrete. The plain concrete will control the cracking due shrinkage and addition of coconut fiber can reduce the thermal also reduce the bleeding of water. The behaviour of SCC was investigated using coconut fibres under three different treatment forms were proposed. In civil engineering, coconut fibres have been used as reinforcement in composites for non-structural components. OBJECTVE In this project; six different percentages of coconut fibres and banana fibres (5%, 8%, 10%, 12%, 15%) having 50mm length are to be used. The 28-day . Behavior of Coconut Fiber-Reinforced Expansive Soil A Widianti, W Diana and M R Alghifari-Sustainable Production of Concrete using Coir Fibres Sudarshan D. Kore-Effect of Epoxy Resin on CBR Improvement of Soft Clayey Subgrade Mixed with Coconut Coir Fibres Raja Veerendra Yenigalla and G.V. The cement content was replaced with class F fly ash at 10% by weight. Fiber Length Volume Fraction Amount in kg 2.5 cm 1.50% 0.1 2.50% 0.165 3.50% 0.23 3.5 cm 1.50% 0.1 2.50% 0.165 . The bulk presence of lignin in coconut fiber and lesser cellulose content makes it strong, solid, and versatile. Udhay and Ajitha conducted compressive testing on lime treated coir fiber reinforced concrete (FRC) cubes for 3, 7 and 28 days strength for 1% to 5% use of coir fiber and observed reduction in strength with all ratios except 1% use of coir where a nominal Self compacting concrete (SCC) is special type of concrete which is highly flowable and non-segregated and by its own mass, spreads into the formwork without any external vibrators, even in the presence of thick reinforcement. The study comprises of comparative statement of properties of coconut fibre reinforced concrete with conventional concrete based on experiments performed in the labor. The fibers are meshed together and the concrete has to pull away from the fiber in order to break. The fibers were not chemically treated and no admixtures were used. Growing demand for reinforced concrete with . 2 % and 0.4% volume- fractions. The influence of variations in the length and content of coconut fibers was analyzed. This paper presents an experimental study that investigates the use of coconut fibers in concrete. Features: 1 - Improve the cohesion of the mixture, and improve the capacity of long - distance pumping 2- Improved resistance against freezing and melting cycles 3 - Improve the resistance of fragmentation due to explosion and fire 4- Improve impact resistance, tensile strength and shear. Coir fiber-reinforced concrete has many advantages. View Coconut Fiber Reinforced Concrete.docx from COECSA CE 401 at Lyceum of the Philippines University - Cavite - General Trias, Cavite. The results indicated that coconut fibres with a length of 38 mm and a volume fraction of 4% gave the maximum strength. Steel fibers of 0.25, 0.5, 0.75, and 1.0% by volume of concrete were used.
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coconut fiber reinforced concrete