This paper is on the basis of some studies on the M20 grade concrete having mix proportion 1:1.5:2 with water cement ratio 0.46 for finding the compressive strength of steel fibre reinforced concrete containing fibres of 0%, 0.47%, 0.97%, 1.47% and 1.97% amount of fraction of hook end steel fibre are used. And the result of this data studied, analysed, review and compare with a specimen of 0% fibre. The comparison of compressive strength with day-today represented with the help of tables. The percentage increase of compressive strength of result data for M20 grade of concrete in 12 hours, 24 hours, 7 days, 14 days and 28 days with respect to the difference in percentage addition of steel fibres. The purpose of this research is to determine and compare the properties of concrete with steel fibre and without steel fibre concrete. This research is mainly on the the enhancing of mechanical properties of concrete.

Concrete is a versatile material due to casting in any shape and provides good workability. Our infrastructure like rigid pavements of highways, bridges, harbors etc. develops rapidly. it requires improved mechanical properties of concrete. This research work is carried out to study the effects of steel fibre inclusion on mechanical properties of concrete. The present work deals with the compressive strength and water absorption studies on steel fibre reinforced concrete (SFRC) of grade M40 with steel fibre. The mix proportions for SFRC were arrived at by performing mix design. In SFRC the steel fibre total is 1%, 1.5%, 2% by volume of concrete has been taken. In this experiment two types of fibres has been used hooked end fibres and flat crimped fibres. All mixes were designed at single water cement ratio (w/c ratio) is 0.4. The results of compressive strength test and water absorption test has been compared and also equate with conventional concrete. Addition of fibres to concrete increased the 28 days Compressive strength and decreased water absorption.

The study is based on designing the mix design of the concrete for the class named MR_DK_E1: C30/37, one of the most widely used classes of normal concrete. To see the effect of the fibers on concrete, we will design three mixtures that in other components are similar to the first mixture "Normal Concrete",but as an additive, we will add 0.75%, 1.5%, and 2.0% of steel fiber (Romfracht SRL Company Profile) to the mass of concrete. Although some researchers have already detailed the favourable qualities of steel fiber reinforced concrete (SFRC), there is very little data regarding the design and performance of this type of concrete. To get to know something more in terms of the properties of steel fiber reinforced concrete, during the realization of this work we will perform some experimental tests based on European standards to understand closely how fibers affect the growth and improvement of properties of concrete with lime aggregate and local cement CEM II/BM (WL) 42.5N,...

Steel fiber is used to improve the mechanical properties of concrete, especially the postcracking tensile resistant. Moreover, it has recently been used as an alternative engineering material instead of steel bars/steel stirrups in short Steel fibers reinforced concrete (SFRC) construction is more economical than conventional construction. In addition to cost reduction, SFRC has other beneficial properties such as higher stiffness, higher ductility, lightweight, low repair costs, and better post-cracking and dynamic behavior. Fiber reinforced concrete is developed in recent years and its main advantages are good flexural strength, tensile strength, and impa permeability properties. Fiber reinforc techniques to enhance the overall properties of concrete. The cross can be flat, circular and triangular and the parameter to desc the aspect ratio. It is the ratio of length to its diameter. The main motive behind the use of steel fiber in concrete is to increase the mechanical and durability parameters of concrete. FRC concrete contains different materials w It contains short fibers that are uniformly distributed and randomly distributed. Fibers include steel fibers, glass fibers and natural fibers of concrete. With the addition of Fibers the conc the varying concrete, fiber materials, distributions, geometric orientation and densities. Uses of steel fiber in concrete can improve its many properties. contains the results of effects of use of steel fiber silica fume and fly ash. On th is compressive strength, flexural strength, split tensile analysis with different percentage of Steel fiber is used to improve the mechanical properties of concrete, especially the postcracking tensile resistant. Moreover, it has recently been used as an alternative ineering material instead of steel bars/steel stirrups in short-span concrete slabs. Steel fibers reinforced concrete (SFRC) construction is more economical than conventional construction. In addition to cost reduction, SFRC has other beneficial such as higher stiffness, higher ductility, lightweight, low repair costs, and cracking and dynamic behavior. Fiber reinforced concrete is developed in recent years and its main advantages are good flexural strength, tensile strength, and impact resistance and shows good permeability properties. Fiber reinforced concrete is one of the most i techniques to enhance the overall properties of concrete. The cross-can be flat, circular and triangular and the parameter to describe the fiber is called the aspect ratio. It is the ratio of length to its diameter. The main motive behind the use of steel fiber in concrete is to increase the mechanical and durability parameters of concrete. FRC concrete contains different materials which enhances its durability. It contains short fibers that are uniformly distributed and randomly distributed. Fibers include steel fibers, glass fibers and natural fibers-each of which changes properties of concrete. With the addition of Fibers the concrete properties changes according to the varying concrete, fiber materials, distributions, geometric orientation and Uses of steel fiber in concrete can improve its many properties. of effects of use of steel fiber in high strength concrete. On the basis of results of different properties of concrete that strength, flexural strength, split tensile strength, UPV percentage of addition of steel fiber with aspect ratio 60. er; reinforcement; environment; compressive strength; flexural strength; split tensile strength Sameer Malhotra and Jagdish Chand, Experimental Investigation on High Strength Concrete with the Addition of Steel Fiber. Steel fiber is used to improve the mechanical properties of concrete, especially the postcracking tensile resistant. Moreover, it has recently been used as an alternative span concrete slabs. Steel fibers reinforced concrete (SFRC) construction is more economical than conventional construction. In addition to cost reduction, SFRC has other beneficial such as higher stiffness, higher ductility, lightweight, low repair costs, and Fiber reinforced concrete is developed in recent years and its main advantages ct resistance and shows good ed concrete is one of the most impactive-section of fiber ribe the fiber is called the aspect ratio. It is the ratio of length to its diameter. The main motive behind the use of steel fiber in concrete is to increase the mechanical and durability parameters hich enhances its durability. It contains short fibers that are uniformly distributed and randomly distributed. Fibers each of which changes properties rete properties changes according to the varying concrete, fiber materials, distributions, geometric orientation and Uses of steel fiber in concrete can improve its many properties. This paper high strength concrete containing properties of concrete that value and XRD addition of steel fiber with aspect ratio 60.

Cement concrete is the most extensively used construction material in the world. The reason for its extensive use is that it provides good workability and can be moulded to any shape. Ordinary cement concrete possesses a very low tensile strength, limited ductility and little resistance to cracking. Internal micro cracks lead to brittle failure of concrete. In this modern age, civil engineering constructions have their own structural and durability requirements. Every structure has its own intended purpose and hence to meet this purpose, modification in traditional cement concrete has become mandatory. It has been found that different type of fibers added in specific percentage to concrete improves the mechanical properties, durability and serviceability of the structure. It is now established that one of the important properties of Steel Fiber Reinforced Concrete (SFRC) is its superior resistance to cracking and crack propagation. In this paper effect of fibers on the strength of concrete for M20 and M40 grade have been studied by varying the percentage of fibers in concrete. Fiber content were varied by 0.50%, 1% and 1.5% by volume of cement. Cubes of size 150mmX150mmX150mm to check the compressive strength and beams of size 500mmX100mmX100mm for checking flexural strength were casted. All the specimens were cured for the period of 7, 28 and 56 days before crushing. The results of fiber reinforced concrete for 3days, 7days and 28days curing with varied percentage of fiber were studied and it has been found that there is significant strength improvement in steel fiber reinforced concrete. The optimum fiber content while studying the compressive strength, flexural strength cube is found to be 1%. Also, it has been observed that with the increase in fiber content up to the optimum value increases the strength of concrete. Slump cone test was adopted to measure the workability of concrete. The Slump cone test results revealed that workability gets reduced with the increase in fiber content.

In this research, the mechanical properties of steel fiber reinforced concrete were investigated experimentally and the results compared with analytical models. Hooked end steel fibers of aspect ratio 50 were added at three proportions and compared with plain concrete. The fiber content is varied at 0%, 0.5%, 0.75%, 1% volume of concrete. The water cement ratio used was 0.51. Tests for compressive strength, flexure strength, splitting tensile strength, modulus of elasticity, impact test on cubes and impact test on slabs were conducted to investigate the influence of hooked end steel fibers in concrete. The experimental results for flexure test and impact test on slabs were compared with analytical results. Analytical study was conducted using commercially available finite element software, ABAQUS.

This paper deals with the experimental investigation for M25 grade of concrete to study the compressive strength tensile strength flexural strength and workability of Steel fiber reinforced concrete containing 0% 1% and 2% of 3 different types of Steel fiber that is creamed Flat fiber, creamed around fiber and both in hooked fiber. Result data obtained have been analyzed and compared with the conventional concrete (0% of Steel fiber). Relationship between the physical properties of concrete with respect to days is represented graphically. These results data clearly show that the increase in compressive strength tensile strength and flexible stand with the increase of Steel fibers while the reduced in workability with the increase in doses of Steel fibers are also plotted graphically

Currently in concrete technology a lot of materials were introduced to improve the quality and properties of concrete. Additional materials include the use of steel fibers into the concrete mix. With the used of steel fibers, it can enhance the strength of the concrete. In this research, two parameters will be investigated which is the volume friction of the steel fiber and the length of the steel fiber. End-hooked steel fiber with the length of 33 mm and 50 mm and the percentage of steel fiber 0.5 %, 1.0 % and 1.5 % used in this research. The size of the mold used is 100 mm x 100 mm x 100 mm. The characteristics during the fresh concrete were also investigated by conducting the slump test, compaction test and vebe test. All the samples has been cured in the water for 7th, 14th and 28th days for the compressive strength test. Based on result, it was concluded that the optimum percentage of steel fiber in this report was 1.0 % for the end-hooked steel fiber with 33 mm length which provided the highest compressive strength at 28 days.

Concrete made with Portland cement has certain characteristics: it is relatively strong in compression but weak in tension and tends to be brittle. These two weaknesses have limited its use. Another fundamental weakness of concrete is that cracks start to form as soon as concrete is placed and before it has properly hardened. These cracks are major cause of weakness in concrete particularly in large on site applications leading to subsequent fracture and failure and general lack of durability. Fiber reinforced concrete (FRC) may be defined as a composite materials made with Portland cement, aggregate, and incorporating discrete discontinuous fibers. Fiber-reinforced concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibres that are uniformly distributed and randomly oriented – each of which lend varying properties to the concrete. In addition, the character of fibre-reinforced concrete changes with varying concretes, fibre materials, geometries, distribution, orientation, and densities. In this experimental investigation, an attempt has made to find out strength related tests like Compressive Strength, Split Tensile Strength, Flexural Strength using hooked end Steel Fibers with to volume fraction of 0.5% and 1% and for aspect ratio and considered for M40 Grade of concrete. Number of specimens were casted, cured and tested. The real contribution of the fibers is to increase the toughness of the concrete, under any type of loading and permit the fiber reinforced concrete to carry significant stress over a relatively large strain capacity in the post cracking stage. The results of the tests showed that the strength properties are enhanced due to addition of fibers.