Performance of polypropylene fibre reinforced concrete milind v. The longer the fibers are, the stronger the bond between fibers and paste is and thus the greater the fiber pullout strength is. The results illustrated that glass fiber reinforced ac and pp fiber reinforced ac treatments. Concrete is sufficiently strong in compression but weak in tension. Similarly concrete mixture that containing 15% fly ash and 0. Kamal tawfiq, jamshid amaghani, and rodolfo ruiz publication. Polypropylene fiber reinforced concrete, published in journal of mechanical and civil engineering, 2015 studied the effect of the addition of various properties of polypropylene fibers on the properties of high strength concrete m30 and m40 mixes. Various type of fiber is used such as glass, carbon, steel, asbestos, polyester and polypropylene. Fiber reinforced concrete types, properties and advantages. Such concrete is also used in retrofitting and repairing the covering of concrete structure, tunnels, etc. Experimental study of compressive behavior of polypropylene. 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. Fatigue strength of fibrillated polypropylene fiber reinforced concretes m.
Restrained shrinkage cracking of fiberreinforced high. Fatigue strength of fibrillated polypropylene fiber. Fiber reinforced concrete has not used mainly for support in weak rock because relation between fiber reinforced concrete lining and the rock mass had not been fully investigated due to safety issues jovicic et al, 2009. Properties of polypropylene fiber reinforced concrete. Inclusion of synthetic polypropylene macro fibers in concrete is known to improve crack resistance and is a feasible solution for prolonging the life of crossties. Pdf experimental study of polypropylene fiberreinforced. Loaddeflection characteristics of steel, polypropylene and. Itwas shown that for thesamelengthanddiameter,crimpedendfibers can achievethesamepropertiesas straight fibers using 40 percent less fibers s. The purpose of this paper was to investigate the influence of fiber volume content on the mechanical properties, durability, and chloride ion penetration of polypropylenefiberreinforced concrete in a. The paper presents research work of experimental investigation on polypropylene fiber reinforced concrete by replacing river sand to artificial sand with and without admixture. The result of fiber reinforced concrete for 7 days, 28days, curing of concrete. Find, read and cite all the research you need on researchgate.
Properties and applications offiber reinforced concrete 51 high aspect ratio were found to have improved effectiveness. Investigation of properties of highperformance fiber. Plastic shrinkage cracking of polypropylene fiber reinforced concrete was investigated experimentally. Hybrid reinforcement of asphaltconcrete mixtures using glass. In this study, the results of the strength properties of polypropylene fiber reinforced concrete have been presented. Mostofinejad and hatami 32 studied the effects of using polypropylene fibers on cracking. The paper deals with the effects of addition of various proportions of polypropylene fibers on the properties of high strength concrete m30and m40. This paper describes the strength of polypropylene fiber reinforced concrete pfrc exposed to the elevated temperatures. Properties studied include unit weight and workability of fresh concrete, and compressive strength, modulus of elasticity, porosity, water absorption, sorptivity coefficient, drying shrinkage and freezethaw resistance of hardened concrete.
Fatigue cracking of polypropylene fiber reinforced concrete. The interest in the use of fibers for the reinforcement of composites has increased during the last several years. Therefore, this paper investigates the feasibility of. A comprehensive study of the polypropylene fiber reinforced fly. This page contains fiberreinforced concrete frc seminar and ppt with pdf report. Sustainability free fulltext influence of the fiber. The compressive strength, permeability and electric resistivity of concrete samples were studied. Carbon footprint assessment of polypropylene fiber reinforced. The use of fiber is the awareness of environment is. Providing and laying 40 mm steel fiber reinforced cement concrete in pavement in panels having area not more than 1.
Use of fiber reinforce polymer in civil engineering increase rapidly. The objective of the study is to use recycled aggregates obtained from polypropylene fiberreinforced concrete in new concrete applications. The nucleation and growth of fatigue cracking in concrete are attributed to the inherent weakness of concrete in tension. Potentially useful improvements in the mechanical behavior of concrete can be affected by the incorporation of fibers. In addition, the character of fiberreinforced concrete. Polypropylene fiber reinforced concrete much work has gone into researching the properties of synthetic fiberreinforced concrete over the past decade, in particular polypropylene fiber reinforced concrete, as the addition of fibers can provide effective, inexpensive reinforcement for concrete. Continuous meshes, woven fabrics and long wires or rods are not considered. Polypropylene is the lightest of all fibres and is lighter than water. Principal research scientist introduction new construction and rehabilitation of existing structures require highperformance. The nucleation and growth of fatigue cracking in concrete are attributed to the. Bending toughness of hybrid fiber reinforced concrete, with the substrate intensity c30, the quantity of the volume for the steel fiber dosage 01.
Performance of polypropylene fibre reinforced concrete. As soon as some tension is developed, it will lose its stiffness. Plastic shrinkage cracking of polypropylene fiberreinforced concrete was investigated experimentally. Mechanicaldamage behavior of mortars reinforced with. In this study, polypropylene fiber reinforced concrete composite is prepared by adding polypropylene fiber into composite material. Mechanical properties of polypropylene fiber reinforced concrete. Fiberreinforced concrete seminar ppt with pdf report. The fiber has subsequently been improved further and at present it is used either as short discontinuous fibrillated material for production of fiber reinforced concrete or a continuous. The existing single concrete composite material mainly consists of sand, cement and water reducer, thus having poor anti. Pdf plastic shrinkage cracking test have been performed on polypropylene fiber reinforced concrete to evaluate the effectiveness of the fibers in. Fiber reinforced concrete frc is a new structural material which is gaining increasing importance.
The percentage increase of compressive strength of polypropylene fiber concrete mixes compared to the mix without fiber is observed from 4 to 12 %. Failure analysis of polypropylene fiber reinforced concrete two. Fiberreinforced concrete frc seminar and ppt with pdf report. Grace microfiber is a synthetic fiber for concrete, manufactured from 100% virgin polypropylene in a monofilament form. Mar 23, 2020 the existing single concrete composite material mainly consists of sand, cement and water reducer, thus having poor anti. The paper deals with the effects of addition of various proportions of polypropylene fibers on the. It contains short discrete fibers that are uniformly distributed and randomly oriented. Fiber reinforced concrete is cement based composite material that has been developed in recent years. Fiber reinforced concrete frc is concrete containing fibrous material which increases its structural integrity. Fiber reinforced concrete was successfully used in variety of engineering applications, because of its satisfactory and outstanding performance in the industry and construction field. Fiber effects on concrete properties were assessed. Ramakrishnan, and gary vondran this paper presents the results of an experimental investigation to determine the flexural fatigue strength of concrete reinforced with three different concentrations of fibrillated polypropylene fibers.
This paper reports of a comprehensive study on the durability properties of concrete containing polypropylene fiber and fly ash. Polypropylene fiber is a light weight synthetic fiber. Durability of glass, polypropylene and steel fiber reinforced. The aim of this paper is to compare the properties of concrete beams in which three types of fibers are added individually. Thus unlike plain concrete, a fiberreinforced concrete specimen does not break immediately after initiation of the first crack.
Pdf experimental investigation on polypropylene fiber. An experimental investigation explored properties such as compressive strength, flexural strength, split tensile. The building sector is a major contributor of carbon footprint or co. Pdf polypropylene fiber reinforced fly ash concrete a. Sekar 2004 conducted tests on fiber reinforced concrete from industrial waste. Polypropylene fibers were first suggested as an admixture to concrete in 1965 for the construction of blast resistant buildings for the us corps of engineers. Loaddeflection characteristics of steel, polypropylene. The present study investigated the performance of synthetic polypropylene macro fiber reinforced concrete and their application in railway crossties.
The results indicated that the polypropylene fiber can significantly reduce the autogenous and total shrinkage of concrete. Concrete is a composite material consisting of cement, water and aggregates. Because of its low specific gravity, polypropylene yields the greatest volume of fibre for a given weight. Since a large portion of the volume of concrete is composed of aggregates, first the. Polypropylene fiber has no effects on flexural strength but the flexural toughness increased on adding polypropylene fiber. Three variables were considered, each at two levels, to assess their effects on plastic shrinkage cracking of concrete.
The three variables and their corresponding levels are given. The tests conducted included determinating the compressive strength of hardened concrete at different times, bond strength, modulus of rapture, modulus of elasticity, the splitting strength, ductility and maximum strain for standard concrete specimens. Failure analysis of polypropylene fiber reinforced concrete. 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. The test results indicate that addition of waste fibers from lathe and wire winding industries to plain concrete enhances the strength markedly, whereas inclusion of waste fibers from wire. A few studies concern the impacts of the polypropylene fiber on drying shrinkage of concrete 29 31. Plastic shrinkage cracking of polypropylene fiberreinforced. Ram meghe institute of technology and research,badnera, amravati, india abstract. Grace microfiber is produced on a stateoftheart production line which. It holds short discrete fibers that are uniformly distributed and circumstances oriented. The character of fiber reinforced concrete changes with varying concretes fiber materials, geometries, distribution, orientation, and densities. Moreover, the water penetration and gas permeability of steel fiber reinforced concrete are increased compared to plain concrete.
Carbon footprint assessment of polypropylene fiber. Recently, however the development of polypropylene fiber reinforced concrete pfrc has provided a technical basis for improving these deficiencies. Mar 06, 2016 fiber reinforced concrete is used to improve the performance of concrete cracking and shrinkage problems. Study of strength of polypropylene fiber reinforced concrete. High performance polypropylene fiberreinforced concrete in panelbeam tests ceylan, semih m. In this study, the results of the strength properties of polypropylene fiber. In the study, control specimens without any fibers and the concrete specimens with the ratios of 0. Fiber reinforced concrete are of different types and properties with many advantages. The samples with polypropylene fiber content of 2 % showed optimum results in comparison with other. Very early strength, toughness, permeability, and fiber distribution evelina khakimova, eit graduate research assistant celik ozyildirim, ph. Applications of fiber reinforced concrete in pavements. Concrete is widely used as construction material worldwide. Fiber reinforced concrete is used to improve the performance of concrete cracking and shrinkage problems. An experimental research investigation of the fresh and hardened material properties of fibrillated polypropylene fiber reinforced concrete is reported.
Fatigue cracking of polypropylene fiber reinforced concrete authors. Performance of polypropylene fibre reinforced concrete doi. Polypropylene fiber reinforced concrete pfrc is a versatile and high performance concrete particularly for industrial and building floors. Mohod1 1 assistant professor, department of civil engineering,prof. This paper presents an overview of the effect of polypropylene pp fibers on various properties of concrete in fresh and hardened state such as compressive. It is 34% lighter than polyester and 20% lighter than nylon. Ac mixtures by using polypropylene and glass fibers. The character of fiberreinforced concrete changes with varying concretes fiber materials, geometries, distribution, orientation, and densities. In addition, the scaling resistance also is improved more for steel fiber reinforced concrete. Durability of glass, polypropylene and steel fiber. Structural properties of polypropylene fiber reinforced.
Properties and applications offiber reinforced concrete faisal fouad wafa associate professor, civil engineering department, faculty ofengineering, king abdulaziz university, jeddah, saudi arabia. Lutfullah turanli may 2014, 61 pages comparison of concrete mixtures containing steel mesh, steel fiber and. A combination of high strength, stiffness and thermal resistance favorably characterizes the fiibers. Concrete, polypropylene fibers, compressive strength, split tensile strength.
What are the disadvantages of fiber reinforced concrete. Fibers include steel fibers, glass fibers, synthetic fibers and natural fibers each of which lend varying properties to the concrete. Keywordsfiber reinforced concrete, polypropylene fibers. Fiberreinforced concrete frc is concrete consisting fibrous material which increases its structural purity. Influence of polypropylene fiber on strength of concrete. Concrete, ductility, mechanical properties, durability. In fiberreinforced concrete, cracks can open only if the tensile stresses in the concrete exceed the tensile strength or the pullout strength of the fibers.
Concrete reinforced with polypropylene fibers concrete. Introduction in recent years, many studies have been conducted in the mechanical characteristics of reinforced fiber concrete. Fiber reinforced concrete possesses high flexural and tensile strength, improved ductility, and high energy absorption over the conventional concrete in sustaining dynamic loads. Polypropylenefiberreinforced concrete impacts the early shrinkage during the plastic stage of concrete, and the fiber volume content influences the durabilityrelated properties of concrete.
Way slabs subjected to static and impact load induced by free falling mass abstract the impact resistance of concrete is considered as poor due to a relatively energy dissipating characteristics and tensile strength. Preparation and performance analysis of polypropylene fiber. Hybrid reinforcement of asphaltconcrete mixtures using. Failure analysis of polypropylene fiber reinforced. In fiber reinforced concrete, cracks can open only if the tensile stresses in the concrete exceed the tensile strength or the pullout strength of the fibers. Fiberreinforced concrete frc is concrete containing fibrous material which. Properties and applications offiber reinforced concrete. This paper presents an overview of the effect of polypropylene pp fibers on various properties of concrete in fresh and hardened state such as compressive strength, tensile strength, flexural. Fiberreinforced concrete frc is concrete containing fibrous material which increases its structural integrity. Preparation and performance analysis of polypropylene. In a previous comparative study 29, different types of fibers including polypropylene, polyester, nylon and glass were used to reinforce asphalt concrete mixture. Research articles challenge journal of structural mechanics.
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