Fiber Reinforced Concrete and Its Application

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AIM: The aim of this topic is to define fiber reinforced concrete and its application, it important properties as well as it superior resistance to cracking. As a result of the ability of fiber to arrest cracks, the composites of fiber possesses an increased in tensile strength both at the first crack and at ultimate, especially under flexural loading, and the fibers can still hold the matrix together even after a lot of cracking.
 Introduction
Concrete is a structural material that is weak in tension and they also have brittle properties with a low tensile strength and strain capacity. Fiber reinforced concrete is known as one of the fastest segments in concrete which contain fibrous materials which increase the structural integrity. Fiber reinforced concrete can also be defined as a composite materials which is compose of aggregate, cement and discrete discontinuous fibers. Fibers include natural fibers, glass fibers, synthetic fibers and steel fibers. Fiber is developed recently in the early sixties and when it is added to concrete makes it to be consistent and isotropic in nature. The mode of failure of fiber reinforced concrete is either by bond failure between fiber and matrix or failure of the materials.
 The application area of fiber reinforced concrete is an old form of method which helps to improve the characteristics of construction materials. The recent applications include the addition of horse hair to reinforce plaster, asbestos to reinforce pottery and straw to mud bricks.
 The role of fibers in concrete is to bridge across the cracks that develop some post cracking ductility and to increase it toughness and types of loading. The uses of reinforced concrete help to increase the strength and ductility but it req...

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...forced concrete beams up to 100 percent.
 Column: The use of fibers help in reducing the types of explosives failure for columns and an increase of fiber content slightly increases the ductility of axially loaded strength.
 Applications of Fiber Reinforced Concrete: The application of fibers in concrete industries depends on the designer and the builder. The main area where fiber reinforced concrete are applied is as follows:
 Runway, Aircraft Parking, and pavements
 Tunnel Lining and Slope Stabilization.
 Blast Resistant Structures.
 Thin Shell, Walls, Pipes and Manholes.
 Dams and Hydraulics Structures
 Conclusions: From my understanding, it shows that Fiber Reinforced Concrete is a promising material to be used because of it good properties, no workability problem , it helps to control cracks in concrete and it is long lasting in concrete structures.

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