Glass fiber concretes are mainly used in exterior building facade panels and as architectural precast concrete. Fibre reinforced concrete has started finding its place in many areas of civil infrastructure applications especially where the need for repairing, increased durability arises. It is well observed that the maximum increase is noticed in the addition of 2% hair fiber, by weight of concrete, in all the mixes. 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. Properties and applications offiber reinforced concrete faisal fouad wafa associate professor, civil engineering department, faculty ofengineering, king abdulaziz university, jeddah, saudi arabia. Rubberised fibre reinforced concrete compared with normal concrete. Sep 29, 2017 this video explains fibre reinforced concrete and effect of fibre in concrete. Fiber reinforced concrete contains only fine sands, portland cement, fibers, and chemistry to accelerate its cure time. Steel fiber, concrete, properties, crack, ductility, technology. Frc is used in civil structures where corrosion is to be avoided at the maximum.
Since concrete is weak in tension hence some measures must be adopted to overcome this deficiency. Properties and applications offiber reinforced concrete. Alkaliresistant glass fibres are used in glassfibre reinforced concrete grc, see separate entries. Effect of admixtures on the use of short fibres in structural. Experimental investigation of steel fiber reinforced. Fiber reinforced concrete free download as powerpoint presentation. Enhance the physical and mechanical properties of concrete are a potential area of research. In 1911 porter found that fiber could be used in concrete. Macro synthetic fibres are typically used in structural concrete as replacement for nominal bar or fabric reinforcement. Both concrete crushing and coirgfrp rupture are acceptable failure modes in governing the design of coirgfrp reinforced concrete members provided that strength and serviceability criteria are satisfied. Experimental investigation of steel fiber reinforced concrete.
Relative fibre matrix stiffness volume of fibres aspect ratio of the fibre fibre reinforced concrete. Kamasani salini department of structural engineering kasireddy narayan reddy college of engineering and research abdullapurv,hayathnagarm,ranga reddydist501505. The type of fibre andor packaging has a direct impact on how the fibres are dosed into the concrete. Glass fibre reinforced concrete use in construction. Fibre reinforced concrete is a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable fibres. A thin and short fibre, for example short hairshaped glass fibre, will only be effective the first hours. The moisture absorption is found to be less in fibre concrete than in plain concrete. Fiber reinforced concrete frc examination of fractured specimens of fiber reinforced concrete shows that failure takes place primarily due to fiber pullout or debonding. Fiber reinforced concrete has all but completely replaced bar in underground construction industry such as tunnel segments where almost all tunnel linings are fiber reinforced in lieu of using rebar. Fiber reinforced concrete types, properties and advantages. Find powerpoint presentations and slides using the power of, find free presentations research about glass fibre reinforced concrete ppt. Fiber reinforced mortars frm 4, have been part of the construction industry for a long period of time.
Project seminar on rubberised fibre reinforced concrete knrr hyd presentation by p. Get the latest journals, research papers, doc and pdf documents discussing the need of using various types of fibers like synthetic, steel, glass etc. Fibers used are steel fibers, synthetic fibers, glass fibers, natural fibers, asbestos fibers and carbon fibers. A thin and short fibre, for example short hairshaped glass fibre, will only be.
Steel fibre reinforced concrete sfrc is well known in several areas of civil engineering as a structural application underground structures probably represent one of the most important fields of application. Human hair as fibre reinforcement in concrete international. Concrete reinforced with fibres which are usually steel, glass or plastic fibres is less expensive than handtied rebar, while still increasing the tensile strength many times. Download the seminar report on fiber reinforced concrete for civil and construction project. It contains short discrete fibers that are uniformly. Keywords compressive strength, ductility, flexural strength, fibre reinforced concrete, steel fiber. View and download powerpoint presentations on fiber reinforced concrete ppt. Design of fibre reinforced concrete beams and slabs master of science thesis in the masters programme structural engineering and building performance design ammar abid, kenneth b. Explore polymer modified steel fibre reinforced concrete with free download of seminar report and ppt in pdf and doc format. Crimped and hooked end steel fibre of length 50 mm and an aspect ratio equal to 50 was added to concrete in different proportions i.
Although the use of fibre reinforced concrete frc for structural applications is continuously increasing, it is still limited with respect to its potentials, mainly due to the lack of international building codes for frc structural elements. Fibers suitable for reinforcing concrete have been produced from steel, glass, and organic polymers synthetic fibers. Fiberreinforced concrete frc is concrete containing fibrous material which increases its structural integrity. Degradable paper bags or containers can be put directly into the concrete truck or mixer, or they can be opened and the loose fibre dispensed. The swedish concrete association published a report on steel fibre reinforced concrete in 1995. Project report on comparisons between pcc and hair fibre. Fiber reinforced concrete frc is a new structural material which is gaining increasing importance. 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. He is a member of aci committees 363, highstrength concrete. There is no difference in meaning between fiber and fibre. Aramid fiber reinforcement materials market analysis and industry forecast, 20142022 aramid fibers are synthetic fibers with exceptional heatresistance and strength.
Further information on the use of fibres in concrete may be found in concrete society technical report 63, guidance for the design of steelfibrereinforced concrete and technical report 65, guidance on the use of macrosyntheticfibre. Topforce fibre reinforced concrete was specified due to its high strength qualities but also for its ease of construction. This material is very good in making shapes on the front of. The influence of 1%, 2%, 3% and 5% fibre contents by mass of cement and fibre lengths of 2. Download fiber reinforced concrete pdf ppt seminar.
Fiber reinforced concrete reinforced concrete concrete. Ppt history frp fiber reinforced materials powerpoint. Fiber reinforced concrete is a type of concrete that includes fibrous substances that increase its structural strength and cohesion. Now, why would we wish to add such fibres to concrete.
Fiber reinforced cementitious matrix composites for. Fibre reinforced concrete, hair fibre, compressive strength, flexural strength, thirdpoint loading method. Tarmac topforce is reinforced with either macro synthetic or steel fibres and can be designed to exclude traditional steel reinforcement. Steel fiber reinforced concrete nguyen van chanh 1 summary it is now well established that one of the important properties of steel fibre reinforced concrete sfrc is its superior resistance to cracking and crack propagation. Also explore the seminar topics paper on polymer modified steel fibre reinforced concrete with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech.
Project report on comparisons between pcc and hair fibre reinforced concrete. Topforce fibres are spread evenly within the mix and are angled at random. Rubberised fibre reinforced concrete powerpoint slides. Thus unlike plain concrete, a fiberreinforced concrete specimen does not break immediately after initiation of the first crack. Thus the concrete and the material reinforced shall have the same strain. Diacalc software for analysis and design of steel fibre reinforced concrete sfrc structures. Topforce is not only quicker and easier to place than steel reinforced concrete, it also contributes to the durability and performance of the finished construction.
Fiber reinforced concrete offers a practical and economical method for overcoming microcracks and similar type of deficiencies. Fiber reinforced concrete has small distinct fibers that are homogeneously dispersed and oriented haphazardly. Naturally occurring asbestos fibers and vegetable fibers, such as sisal and jute, are also used for. Introduction glass fiber reinforced concrete gfrc or grc is a type of fiber reinforced concrete. Concrete containing a hydraulic cement, water, fine or fine and coarse aggregate, and discontinuous discrete fibers is called fiberreinforced. This particular class of concrete was developed with the goal of solving the structural problems inherent with todays typical concrete, such as its tendency to fail in a brittle manner. A comparison between the static and dynamic moduli was conducted.
View and download powerpoint presentations on glass fibre reinforced concrete ppt. Besides its ability to sustain loads, natural fibre reinforced concrete. Reduction of dead weight of a reinforced concrete rc structure without too much concession in its load carrying capacity has always been an attractive study subject because it engenders 1 a decrease in dimensions of the members, 2 a decrease in the reinforcement steel, and 3 a decrease in lateral inertia forces during severe earthquakes. To the steel fibre reinforced concrete a styrene butadiene rubber emulsion was added and the properties of such polymer modified steel fibre reinforced concrete psfc are studied. Thus unlike plain concrete, a fiber reinforced concrete specimen does not break immediately after initiation of the first crack. 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. Fibre reinforced concrete can offer a convenient, practical and economical method for overcoming microcracks and similar type of deficiencies. Sep 10, 2009 although the use of fibre reinforced concrete frc for structural applications is continuously increasing, it is still limited with respect to its potentials, mainly due to the lack of international building codes for frc structural elements. Fibers include steel fibers, glass fibers, synthetic fibers and natural fibers each of which lend varying properties to the concrete. Natural fibre reinforced concrete blocks david stephens, university of durbanwestville, south africa. Within fib federation internationale du beton, the special activity group 5 is preparing a new fib model code that aims to update the previous ceb. The idea of using such fibers to improve the strength and durability of brittle materials is not new. Introduction fibre reinforced concrete frc may be defined as a composite materials made with portland cement, aggregate, and incorporating discrete discontinuous fibres. Gopalaratnam and shah 1986 discussed the effect of strain rate on the flexure behaviour of unreinforced matrix.
Introduction to steel fiber reinforced concrete on. Download fiber reinforced concrete pdf ppt seminar report. Highperformance fiberreinforced cementitious composites. Fiber reinforced concrete knowledge area ppt scribd. Fiber reinforced concrete frc is concrete containing fibrous material which increases as structural and is gaining importance. Polymer modified steel fibre reinforced concrete seminar. Indeed, some fibers actually reduce the compressive strength of concrete. All these studies are limited to the normal strength concrete, and the research in the area of high performance concrete hpc and steel fibre reinforced high performance concrete sfrhpc beamcolumn joints is limited. Fiberreinforced concrete frc is concrete made primarily of hydraulic cements, aggregates, and discrete reinforcing fibers.
Steel fiber reinforced concrete linkedin slideshare. Whilst natural fibres have been used to reinforce construction materials since time immemorial the use of straw in sundried mud bricks or the strengthening of. Fiber reinforced concrete is a composite material of mixtures of cement mortar or. Reduction of dead weight of a reinforcedconcrete rc structure without too much concession in its load carrying capacity has always been an attractive study subject because it engenders 1 a decrease in dimensions of the members, 2 a decrease in the reinforcement steel, and 3 a decrease in lateral inertia forces during severe earthquakes. The addition of fibres to the concrete should be in accordance with an agreed method statement, to ensure that the fibres are adequately distributed throughout the concrete, there are no fibre. Natural fiber reinforced concrete transportation research board. Feb 18, 2017 there was an overall increase of 1 12% in the compressive strength of concrete and up to 5% in the flexural strength of concrete test specimens by the addition of hair fibers in different quantities.
Experimental program materials the cementitious material used in the test was ordinary portland cement. If you continue browsing the site, you agree to the use of cookies on this website. In general, when fibres are added to concrete, tensile strain in the neighbourhood of fibres improves significantly. When horse hair, straws were used to strengthen the bricks.
You may have heard of gfrc which is an abbreviation for glass fiber reinforced concrete and perhaps the most common of all the frcs, but with new developments in fiber technology, many mixes are utilizing fibers made from. 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. Hair fibre reinforced concrete linkedin slideshare. The experimental set up for various tests were described below. May 28, 2015 to safeguard the concrete against flexural cracks fibres are used in concrete section which is known as fibre reinforced concrete 4. Design of fibre reinforced concrete beams and slabs. Fiber reinforced concrete frc is concrete made primarily of hydraulic cements, aggregates, and discrete reinforcing fibers. Confirming to is 5161959 15 in present work weigh batching hand mixing is used to study cube compression test, flexural test on beams, on plain and steel fibre reinforced concrete sfrc were carried on number of samples. This masters thesis was carried out, between january 2011 and june 2011, at the.
Download the seminar report for fibre reinforced concrete. Naturally occurring asbestos fibers and vegetable fibers, such as sisal and jute, are also used for reinforcement. Abbey glen subdivision with fiberreinforced concrete. Care should be taken to ensure proper dispersal and complete mixing. As a result of this ability to arrest cracks, fibre composites possess. Normal unreinforced concrete is brittle with a low to not exist. Though the mechanics of cementitious based matrices for fiber reinforced composites was explored during the 1970s, with intrinsic models developed 5, no. Fiber reinforced concrete knowledge area ppt free download as powerpoint presentation. Find powerpoint presentations and slides using the power of, find free presentations research about fiber reinforced concrete ppt. Fiberreinforced concrete frc examination of fractured specimens of fiberreinforced concrete shows that failure takes place primarily due to fiber pullout or debonding. In addition, the character of fiberreinforced concrete. Steel or macro synthetic fibres may be added to the concrete either at the readymixed plant or to the mixer truck on site. Fiber reinforced concrete fiber reinforced concrete frc is concrete containing fibrous material which increases its structural integrity.
1134 1417 809 1563 1156 975 1374 699 727 204 1546 411 8 440 804 304 119 165 203 337 911 554 70 1318 696 609 136 824 1169 709 623 374 1134 385 281 914 319 330 89 90 675 1304 807