Properties of coconutcoir fiber manufacturing process of. The use of coconut fibre ash as a partial replacement for. Mechanical and dynamic properties of coconut fibre reinforced concrete. This research studies the effect of coconut fibers on the strength of concrete which includes the compressive and the flexural strength of normal concrete. There is the recent development of producing concrete by use of coconut coir based fiber. Fiber reinforced concrete is a type of concrete that includes fibrous substances that increase its structural strength and cohesion. Coconut fibre reinforced concrete cfrc is used for casting interlocking blocks. Graph of crushing load from the above graph it is clear that when 0. However, the dosage of coconut fiber should be low, not exceeding 1. The following tests are performed on concrete blocks reinforced with coconut fiber. Coconut fibre is treated as natural fiber before using in concrete. And we used coconut fibre also known as coir fibre. Properties and applications offiber reinforced concrete. The common name, scientific name and plant family of coconut fiber is coir, cocos nucifera and arecaceae palm, respectively.
Coconut and sisalfibre reinforced concrete have been used for making roof tiles, corrugated sheets, pipes, silos and tanks agopyan, 1988. In general, the deleterious effects brought about by aggressive environments can be suppressed with fiberreinforced concrete. This study recommends that the coconut fiber undergo treatment prior to its. Optimization of coconut fiber in coconut shell concrete and its. The present study discusses about the importance of coconut fiber as an admixture for roofing, its advantages and scope in future. To evaluate the performance of coconut fiber reinforced concrete in reducing cracking. International status according to the research conducted by majid ali, et. The even though the market for fibre reinforced concrete is still small compared to the overall production of concrete, the worldwide yearly consumption of fibres. It is concluded that crushed coconut shells are suitable when it is used as substitute for conventional aggregates in lightweight concrete production. Fiber reinforced concrete is used to improve the performance of concrete cracking and shrinkage problems. The addition of coconut fiber significantly improved all the properties investigated. By compare with other types of concrete coconut fiber reinforced concrete is also strong and ideal for hard use.
Thus unlike plain concrete, a fiber reinforced concrete specimen does not break immediately after initiation of the first crack. Foamed concrete is a better option but it is good in compression and. In this research, the effect of coconut fibers and hybrid. The coconut fiberreinforced concrete cfrc specimens also benefitted from the reinforcing effects of the fiber because the specimens consistently exhibited a higher strength in this environment. Concrete containing a hydraulic cement, water, fine or fine and coarse aggregate, and discontinuous discrete fibers is called fiberreinforced. Fiber reinforced concrete frc examination of fractured specimens of fiber reinforced concrete shows that failure takes place primarily due to fiber pullout or debonding. Malaysia studied the strength and durability of coconut fiber reinforced concrete in aggressive environments. I used coconut fiber as a alternate solution of steel. The use of coconut fibre in the production of structural. Introduction inclusion of a sufficient volume of certain fibres. Growing attention is nowadays being paid to coconut fiber due to its availability. Abstract this is a experimental studies on the use of coconut fibre as enhancement of concrete which can reduce conventional building material costs for the rural and urban development in india. Concrete and coconut fibrereinforced concrete soumen santra, jaydeep chowdhury. Fiber reinforced concrete has small distinct fibers that are homogeneously dispersed and oriented haphazardly.
A wide variety of fibres have been proposed by the. Certified that this project work entitled coconut fibre reinforced concrete is an authentic record of project work done by aditya tom reg. The weight and volume of plain and fibre reinforced concrete was measured before the compressive strength test. In this paper, coir fibre is considered which is the natural fiber of the coconut husk where it is thick, coarse and durable fiber. Conventionally the tensile properties of concrete members are improved by the reinforcement with steel. There is no significant change of moisture content with coconut fiber. Conventional concrete is robust in compression and weak in tension in order to swamp the weakness natural fibre is being equipped. But, due to its number of demerits, which includes its. Basalt fiber is cheap and has excellent mechanical performance. Fiber reinforced concrete are of different types and properties with many advantages. He is a member of aci committees 363, highstrength concrete. The compressive strength, splitting tensile strength, modulus of rupture and shear strength of coir fibre reinforced concrete with 2% fibres by volume fraction were. Irjet an experimental study on coconut fiber reinforced.
Murali, g sravan kumar, k varum teja 2018, study on properties of natural fibre reinforced concrete made with coconut shells and coir fibre, international journal of civil engineering and technology, 91, 2018, pp. This page contains fiberreinforced concrete frc seminar and ppt with pdf report. In this study, a new composite structure called basalt fiber reinforced polymer bfrp tube encased coconut fiber reinforced concrete cfrc is developed. Pdf mechanical and dynamic properties of coconut fibre. This addendum is to be used in conjunction with aci 522. Pdf coconut fibre reinforced concrete researchgate.
No mass is put at wallette top and earthquake loadings are scaled because of limitation of shake table. Advantages and disadvantages of reinforced concrete. Fracture toughness and fracture energy of coconut fiber reinforced polymer concrete are higher than that of other fibers reinforced polymer concrete and flexural strength is increased up to 25 % with coconut fiber only. Application of coir fibres as concrete composites for disaster prone structures abstract investigations to overcome the brittle response and limiting post yield energy absorption of concrete led to the development of fibre reinforced concrete using discrete fibres within the concrete mass. Fibre reinforced concrete, coconut fibre, banana fibre, material properties, hardened concrete properties 1. Thus unlike plain concrete, a fiberreinforced concrete specimen does not break immediately after initiation of the first crack. The addition of coconut fibre in concrete improves various engineering properties of concrete. Fiberreinforced concrete frc is concrete consisting fibrous material which increases its structural purity. Aug 01, 2016 there is the recent development of producing concrete by use of coconut coir based fiber. Fiberreinforced concrete frc is concrete containing fibrous material which increases its structural integrity.
Properties of coconutcoir fiber manufacturing process. The even though the market for fibre reinforced concrete is still small compared to the overall production of. There are two types of coconut fibers, brown fiber extracted. The maintenance cost of reinforced concrete is very low. High flow ability concrete is that concrete which under its own weight without any vibration or impact fills all the parts of the formwork. Fiber reinforced concrete frc is a new structural material which is gaining increasing importance. Density of plain and coconut fibre reinforced concrete. The adoption of inherent fibres as edifice constituents is boon to procure a livable production. Fiberreinforced concrete smart materials and smart sensors aci fall 2011 convention october 16 20, cincinnati, oh aci web sessions antoine naaman, faci, is a professor in the department of civil and environmental engineering at the university of michigan. Coconut fibre is a waste material which can be utilized as fibre in fibre reinforced concrete, if we used it the. Coconut fiber is extracted from the outer shell of a coconut. Use of coconut fibre reinforced concrete and coconutfibre. The walls are intended to be constructed with novel interlocking blocks, and coconut fibre reinforced concrete cfrc is used as a construction material presented in a separate study.
Mixtures m1m5 had polypropylene fibers and coconut fiber in proportions such as the proportion of polypropylene fiber decreasing starting with 100% in m1 and 0% in m 5 while coconut fiber starting with 0 % in b1 and 100% in b5. Fiber reinforced concrete can be defined as a material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed fibers. Use of coconut husk fiber for improved compressive and. The present study has illustrated that addition of coconut fibre and coir fibre to concrete enhances the properties of concrete.
The use of coconut fibre ash as a partial replacement for cement. To know effect of addition of coconut fibers on compressive strength of concrete. Mar 06, 2016 fiber reinforced concrete is used to improve the performance of concrete cracking and shrinkage problems. Jul 19, 2016 reinforced concrete, as a fluid material, in the beginning, can be economically molded into a nearly limitless range of shapes. To make concrete able to absorb tension force be use reinforced concrete. The testing of concrete according to indian standard specification to identify the effect of workability and mechanical strength properties due to doses of combined fiber. Reinforced concrete, as a fluid material, in the beginning, can be economically molded into a nearly limitless range of shapes. Compression behavior of basalt fiberreinforced polymer.
Test results for concretes obtained by using water blended with yeast granules are also reported in this paper. Effect of coconut fibre in concrete and to improve. Fiber reinforced pervious concrete specification abc. Their aim was to mitigate the development of cracks in marine structures by introducing coconut fibers which would provide a localized reinforcing effect. As soon as some tension is developed, it will lose its stiffness. Continuous meshes, woven fabrics and long wires or rods are not considered. Concrete reinforced with coconut fibres international journal of.
Fiberreinforced concrete frc seminar and ppt with pdf report. In addition, the character of fiberreinforced concrete. The obtained weight of each concrete was divided with its volume to find out the density. Fibers include steel fibers, glass fibers, synthetic fibers and natural fibers each of which lend varying properties to the concrete. Fibre reinforced concrete frc frc is a structural material having nearly the same cementitious matrix composites as a plain concrete pc except fibres of different types and forms. By compare with other types of concrete coconut fiberreinforced concrete is also strong and ideal for hard use. Such concrete is known as self compacting concrete. Mar 16, 2017 conventional concrete is robust in compression and weak in tension in order to swamp the weakness natural fibre is being equipped. What are the disadvantages of fiber reinforced concrete. Properties and applications offiber reinforced concrete faisal fouad wafa associate professor, civil engineering department, faculty ofengineering, king abdulaziz university, jeddah, saudi arabia. Strength and durability of coconutfiberreinforced concrete. The use of coconut fibres will also lead to better management of these waste fibres. Fibers used are steel fibers, synthetic fibers, glass fibers, natural fibers, asbestos fibers and carbon fibers. The densities are less than normal concrete at 2400 kgm3 and comparable to other new wall materials between 600 kgm3to 1800 kgm3.
The results of the test showed that the compressive strength, flexural strength and splitting tensile strength of the foamed concrete increase as the fiber volume percentage of the coconut coir fiber increased in the concrete mix. The concept of using fibers as reinforcement is not new. Sumit thakur civil fiberreinforced concrete frc seminar and ppt with pdf report. 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. The swedish concrete association published a report on steel fibre reinforced concrete in 1995. Pdf study on mechanical properties of coconut fiber. In this study, a composite material consists of basalt fiberreinforced polymer bfrp tubeencased coconut fiberreinforced concrete cfrc is developed. Fiber reinforced concrete can be defined as a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable fibers. For these drawbacks, the development of contemporary concrete technologies such as ecofriendly and affordable coconut fiber reinforced concrete needs more investigation. At that time, it was considered to be one of the worlds most modern and straightforward handbooks on the design of steel fibre reinforced concrete structures. There is also no significant effect to water absorption on increasing coconut fiber content.
In addition, in combination with the environmentally friendly coconut fiber, it can contribute to sustainable construction materials. Pdf the use of coconut fibre as an additive for improving the strength of concrete find, read and cite all the research you need on researchgate. In this study, a composite material consists of basalt fiber reinforced polymer bfrp tubeencased coconut fiber reinforced concrete cfrc is developed. In general, the deleterious effects brought about by aggressive environments can be suppressed with fiber reinforced concrete. The result of fiber reinforced concrete for 7 days, 28days, curing of concrete. As we all know, steel is used as a reinforcing material for holding the concrete and making it crack resistant.
Do not open the pavement to vehicular traffic until the concrete has cured at least 7 uninterrupted days. Fiberreinforced concrete seminar ppt with pdf report. The use of fibers in pervious concrete is permitted when approved by the architectengineer. Irjet an experimental study on coconut fiber reinforced concrete. These coir rope reinforced biocomposite concrete panels are obtained by reinforcing the coir ropes of small diameter in between concrete layers using epoxy resin. 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. Flexural behavior of basalt fiber reinforced polymer tube.
Cfrc is prepared with 5 cm long coconut fibres and 1% content by mass of concrete materials. Application of coir fibres as concrete composites for. To check the feasibility of coconut fiber and polypropylene. Green approach refers to a use of natural and renewable source of energy replacing or reducing environmentally unfriendly materials like steel. Coconut shells are replaced in the place of coarse aggregate. The addition of coconut fibres improved the flexural strength of concrete by. It is the natural fiber of the coconut husk where it is a thick and coarse but durable fiber. It contains short discrete fibers that are uniformly distributed and randomly oriented.
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