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Fiber Reinforced Concrete full report

What is a Fiber ?
Small piece of reinforcing material
possessing certain characteristic
Can be circular or flat.
Parameter used to describe fiber
Aspect ratio .
Aspect ratio is ratio of its length to its
Typical aspect ratio for fibers ranges from
30 to 150.
Concrete (FRC)?
Fiber reinforced concrete (FRC) is concrete
containing fibrous material which increases its
structural integrity.
It contains short discrete fibers that are uniformly
distributed and randomly oriented.
Fibers include steel fibers, glass fibers, synthetic
fibers and natural fibers.
Within these different fibers that character of fiber
reinforced concrete changes with varying
concretes, fiber materials, geometries,
distribution, orientation and densities
History of FRC
The concept of using fibers as reinforcement is not new.
Fibers have been used as reinforcement since ancient
Historically, horsehair was used in mortar and straw in
mud bricks.
In the early 1900s, asbestos fibers were used in concrete,
and in the 1950s the concept of composite materials
came into being.
There was a need to find a replacement for the asbestos
used in concrete and other building materials due to the
health risks associated with the substance were
By the 1960s, steel, glass (GFRC), and synthetic fibers
such as polypropylene fibers were used in concrete, and
research into new fiber reinforced concretes continues

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