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Fiber Reinforcement in Concrete
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Fiber Reinforcement in Concrete

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Concrete has high compressive strength, stiffness, lowthermal and electrical conductivity, but it lacks in tensile, flexural strengthas well as structure formed is brittle and not tough. When fibers with smallstaple length are added to concrete, fibers precipitates through the cementslurry to create a second phase at the interface making the structure tough andflexible. The flexibility leads to energy absorption which leads to toughersystem. This second phase makes the structure tougher which will act as shockabsorbing zone and avoid cracking.


Concreteis the combination of dissimilar material. As in concrete, a single componentis not used, so this total structure can be called as composite. Whenfibers with small staple length are reinforced in concrete matrix structure,the fibers precipitate through the cement slurry solution to create a secondphase at the interface. This second phase makes the structure tougher. In caseof vibration or heavy shocks, this second phase will act as shock absorbingzone and avoid any reflective cracking [1]. Thefiber reinforcement in building materials dates from centuries ago, and it allstarted with natural fibers. In ancient Egypt some 3000 years ago, clay wasreinforced by straw to build walls [2].

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