Properties and applications offiber reinforced concrete 51 high aspect ratio were found to have improved effectiveness. Testing and performance of fiberreinforced, selfconsolidating. Pdf mechanical properties of steel fibre reinforced self. Precast fibrereinforced selfcompacting concrete slabs. This paper deals with the mix design and mechanical properties of self. Tasdemirmechanical behaviour and fibre dispersion of hybrid steel fibre reinforced selfcompacting concrete. The aim of the research programme was to investigate flexural behaviour of steel fibre reinforced selfcompacting concrete sfrscc. Steel fibre reinforced concrete, self compacting concrete, thin slab, nonlinear analysis. Self compacting fiber reinforced concrete combines the benefits of scc in the fresh state and shows an improved performance in the hardened state, as compared with conventional concrete, due to. Properties of steel fibre reinforced selfcompacting concrete for. In this study we have made self compacting concrete sccand self compacting fibre reinforced concrete scfrc satisfying above three characteristics with super plasticisers sulphonate napthalene formaldehyde. Experimental study on fiber reinforced self compacting. Superplasticiser is an essential component of self compacting concrete to provide the necessary workability. Study on steel fibre reinforced self compacting concrete.
Properties and applications offiber reinforced concrete. Glass fiber concretes are mainly used in exterior building facade panels and as architectural precast concrete. This is the case of flat concrete slabs, whose thin geometry. Though there are notable improvements, some problems still remained. Properties of steel fibre reinforced selfcompacting concrete for optimal rheological and mechanical properties in. Conventional fiber reinforced concrete is a special type of concrete that has been strengthened by adding fibers to the wet concrete mix. Tasdemir, mechanical behaviour and fibre dispersion of hybrid steel fibre reinforced selfcompacting concrete, construction and building materials 28 2012 287293. Selfcompacting concrete, fiber reinforcement, fly ash, workability, strength 1. Fibrereinforced selfcompacting concrete frscc is a new building material that combines positive characteristics of workability of selfcompacting concrete scc with enhanced characteristics of hardened concrete due to fibre addition. Evaluation of the fresh and hardened properties of steel fibre reinforced selfcompacting concrete using recycled aggregates as a replacement material. Experimental study on fiber reinforced self compacting concrete. Mechanical performance of steel fiber reinforced selfcompacting concrete in. Mechanical properties and fibre density of steel fibre.
Inclusion of relatively small amounts of fibre can adequately. Vibrated and selfcompacting fibre reinforced concrete. The paper presents an experimental investigation on the flexural fatigue strength of self compacting fibre reinforced concrete scfrc beams. Six different mixes were produced in two different conditions. Selfcompacting concrete produces resistance to segregation by using mineral fillers or fines and using special admixtures. The specific gravity of the admixture selfcompacting concrete scc is a concrete that can be placed and compacted under its own weight without mechanical vibration. In this study, fibre reinforced self compacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. The aim of the research programme was to investigate flexural behaviour of steel fibre reinforced self compacting concrete sfrscc. However, a barrier to more widespread use of frc has been the lack of. Considerable work has been done in the area of self compacting concrete by partial replacement of coarse aggregates ca with. The achievement of this aim, a control selfcompacting concrete scc and 24 frsccs were designed applying fresh concrete properties tests. Glass fibre reinforced concrete use in construction. Selfconsolidating concrete is required to flow and fill special forms under its own weight, it shall be flowable enough to pass through highly reinforced areas, and must be able to avoid aggregate segregation. Steel fibre reinforced self compacting concrete sfrscc possess the advantages of both self compacting and fibre reinforced concrete.
The sfrscc deck is intended to withstand the compressive. Selfcompacting concrete applications and advantages. Also, limited studies with steel fibre reinforced self compacting concrete using msand and ggbs scm for improving the paste properties of scc. Also, limited studies with steel fibre reinforced selfcompacting concrete using msand and ggbs scm for improving the paste properties of scc. In this study, fibrereinforced selfcompacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. Oct 19, 2016 the application of steel fibre reinforced self compacting concrete sfrsc in the construction of structural elements is seen as an alternative solution to the complication in placing the reinforce. Selfcompacting concrete is a brittle material with a low strain capacity. The present study consists of two parts, the first one look for producing selfcompacting steel fibrous concrete with reasonable flow, spread, and passing abilities, and resistance to segregation and shear. Properties of steel fibre reinforced selfcompacting concrete for optimal rheological and mechanical properties in precast beams author links open overlay. Fibre reinforced scc fibre reinforced self compacting concrete is considered as new technology for the construction industry. The achievement of this aim, a control self compacting concrete scc and 24 frsccs were designed applying fresh concrete properties tests.
The resulting material is, in this work, designated by steel fibre reinforced self compacting concrete sfrscc and, when compared to. Shear strength of steel fibre selfcompacting reinforced. This paper deals with the behaviour and capability of sfrscc in flexure and punching shear by conducting. The concrete precast industry often has to cope with the difficulties concerning the production of structural elements with complex or atypical shapes.
The mix with steel fibres have higher split tensile. The present study consists of two parts, the first one look for producing self compacting steel fibrous concrete with reasonable flow, spread, and passing abilities, and resistance to segregation and shear. Mechanical behaviour of self compacting concrete with hybrid fibre reinforced concrete guided by. Technology, design and applications of steel fibre reinforced self compacting concrete joaquim a. The addition of fibers to scc produces self compacting fiber reinforced concrete scfrc that not only has the fresh state benefits of scc but also has improved properties in the hardened state. Bond characteristics of steel fibre reinforced self. In the design of frscc, 4 steel and 2 polypropylene synthetic fibres were used in different lengths and aspect ratios. Introduction glass fiber reinforced concrete gfrc or grc is a type of fiber reinforced concrete. Department of civil, environmental, architectural engineering and mathematics, university of brescia, via branze 43, italy. Fibrereinforced selfcompacting concrete prediction of rheological properties. The specimens were in a form of slabs reinforced with steel fibres of three lengths and two shapes by volumes of 1. Structural performance of self compacting fibre reinforced. Structural engineering 202016 university college of engineering, trichirappalli bit campus, india. The results indicated that highvolume of fly ash can be used to produce steel fiber reinforced selfcompacting concrete, even though there is some increase in the concrete strength because of the use of steel fiber and highvolume of fly ash.
Properties of steel fibre reinforced selfcompacting concrete. Sfscc was used where the stirrups were reduced to 50% in order to study the possibility of steel fibre to partly replaced normal stirrups. The feasibility of producing fiberreinforced, selfconsolidating concrete frscc that can be cast into place with minimum or no consolidation was investigated. Abstract self compacting concrete has developed as an advanced material, proficient of attaining remarkable development in the arena of concrete technology. To achieve the warranted workability, compressive and splitting tensile strengths, compositions were determined by preliminary tests on self compacting materials with various. Steel fibre reinforced self compacting concrete sfrscc is a composite material that can integrate the benefits of fibre reinforcement with those derived from the self consolidating. Eight different concrete compositions were grouped in two strength classes with compressive strengths of 50 and 70 mpa. Paper open access related content vibrated and self. Introduction in modern times of civil engineering, development of new materials and production methods have increased within the field of construction. Mechanical behaviour of selfcompacting concrete with hybrid. One example is the use of steel fibers for various applications.
Mechanical performance of steel fiber reinforced selfcompacting. T, strength and behaviour of steel fibre reinforced self compacting concrete in flexure, international conference on advances in concrete, composites and structures, held. Recycling of materials is a possible way of eradicating the acute shortage of materials. Itwas shown that for thesamelengthanddiameter,crimpedendfibers can achievethesamepropertiesas straight fibers using 40 percent less fiberss. By using superplasticizers and mineral admixtures such as slag and fly ash, three sfrc of different fiber contents 0. Steel fibre reinforced selfcompacting concrete sfrscc is a composite material that can integrate the benefits of fibre reinforcement with those derived from the selfconsolidating. The design of fibre reinforced self compacting concrete and. Pdf steel fibre reinforced self compacting concrete sfrscc possess the advantages of both self compacting and fibre reinforced concrete.
Abstract selfcompacting concrete scc represents one of the most outstanding advances in concrete technology during the last decade. Flexural fatigue strength and failure probability of self. Fibre reinforced concrete frc and selfcompacting concrete scc are two important types of novel concre tes. Mechanical behaviour of selfcompacting concrete with. The influence of selfcompacting steel fibre reinforced. The strength properties of fibre reinforced self compacting concrete. The use of concrete as a structural material is limited to certain extent due to the. Workability analysis of glass fiber reinforced selfcompacting concrete using jring test written by praveen. The addition of fibers to scc produces selfcompacting fiber reinforced concrete scfrc that not only has the fresh state benefits of scc but also.
Grunewald, performancebased design of selfcompacting fibre reinforced concrete, doctors thesis, 2004. Experimental study on the mechanical behaviour of sisal. Fiber blir et viktig alternativsupplement til stangarmering i fremtidens betong. Performance of glass fibre reinforced self compacting. Nandha engineering collegeautonomous, erode, india. Simplified mix design procedures for steel fibre reinforced. Steel fibre reinforced selfcompacting concrete sfrscc is a relatively new composite material that combines the benefits of the selfcompacting concrete scc technology with the advantages derived from the fibre addition to a brittle cementitious matrix. This material is very good in making shapes on the front of. Fibrereinforced concrete frc extends the versatility of concrete as a construction material, offers a potential to simplify the construction process and, when combined with selfcompacting concrete, signifies an important step towards industrial construction. Due to environmental consequences and scarcity of river sand, usage of msand has to be encouraged.
Pdf selfcompacting concrete scc offers several economic and technical benefits. In this work, an attempt has been made to make a comparative study on the fresh and hardened state properties of m20 and m30 grades of concrete mixes of self compacting concrete scc and glass fibre reinforced self. Technology, design and applications of steel fibre reinforced selfcompacting concrete joaquim a. Flexural behaviour of steel fibre reinforced selfcompacting. Reinforcement of selfcompacting concrete with short randomly distributed fibers can. In recent times, self compacting concrete has been accepted as a quality product and are widely used.
Fibre reinforced concrete with steel fibres attracted the attention of engineers and researchers during the last five decades. Selfcompacting fiber reinforced concrete request pdf. Properties of steel fibre reinforced selfcompacting. Design of fibre reinforced concrete beams and slabs. Fibre reinforced self compacting concrete is considered as new technology for the construction industry. Fibre reinforced concrete frc extends the versatility of concrete as a construction material, offers a potential to simplify the construction process and, when combined with self compacting concrete, signifies an important step towards industrial construction. In concrete industry, it is widely accepted that the conventional concrete mixes are face down to plastic shrinkage during the phase of setting and this can often lead to cracking. Fibre reinforced self compacting concrete frscc is a new building material that combines positive characteristics of workability of self compacting concrete scc with enhanced characteristics of hardened concrete due to fibre addition. Steelfibrereinforced concrete, selfcompacting concrete, thin slab, nonlinear analysis. Steel fibre reinforced selfcompacting concrete sfrscc is a material that can flow under its own weight and fill formwork without the need for any type of internal or external vibration.
This kind of concrete mix can mitigate two current concrete weaknesses. In literature, metallic and synthetic fibres are used as the scc reinforcement. Fibrereinforced concrete for industrial construction. Steel fibre reinforced selfcompacting concrete sfrsc. 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. Fibrereinforced selfcompacting concrete frscc is a new building material that combines positive characteristics of workability of. The analysis observed that the addition of 1% steel fibre by volume. Keywords fibre reinforced selfcompacting concrete, steel fibres, polypropelene fibres, hybrid fibres. Steel fibre reinforced concrete sfrc has been successfully used in various types of construction due to the fact that adding steel fibres improves the durability and mechanical properties of hardened concrete, notably flexural strength, toughness, impact strength, resistance to fatigue. Fibre reinforced self compacting concrete frscc is a new building material that combines positive characteristics of workability of self compacting concrete scc with enhanced characteristics. The results indicated that highvolume of fly ash can be used to produce steel fiber reinforced self compacting concrete, even though there is some increase in the concrete strength because of the use of steel fiber and highvolume of fly ash. The advantages associated to the addition of steel fibers to concrete mixes may be joined with the ones resulting from the selfcompacting ability concept in.
In this world of rapid urbanization the demand for natural construction materials is increasing day by day which has created a necessity for alternative construction materials. Self compacting concrete containing fibres is a high performance building material which has the combined properties of scc having improved characteristics with the addition of fibres. Abstract self compacting concrete scc represents one of the most outstanding advances in concrete technology during the last decade. Glass fibre reinforced self compacting concrete gfrscc is composed of cement, different sizes of coarse and fine aggregates, which integrate with distinct, uneven glass fibres. Workability analysis of glass fiber reinforced self. Lukas, the investigation on the workability and flexural toughness of fibre coctail reinforced selfcompacting high performance concrete. More recently, researchers are developing fiber reinforced selfcompacting concrete, frscc, which consists in the addition of fibers typically, steel fibers or synthetic fibers to the scc.
Franzen department of civil and environmental engineering division of structural engineering concrete structures chalmers university of technology abstract. A large number of studies are available with respect to several parameters viz. Hybrid fiber reinforced selfcompacting concrete international. However this technology has found wide acceptance amongst the construction industry. Pdf steel fibre reinforced selfcompacting concrete. Steel fibre reinforced self compacting concrete sfrscc is a material that can flow under its own weight and fill formwork without the need for any type of internal or external vibration. Lukas, the investigation on the workability and flexural toughness of fibre coctail reinforced self compacting high performance concrete. The application of steel fibre reinforced selfcompacting concrete sfrsc in the construction of structural elements is seen as an alternative solution to the complication in placing the reinforcement and compaction of normally vibrated concrete. Mechanical properties of selfcompacted fiber concrete mixes.
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