This presentation provides an overview of fiber reinforced concrete. It discusses the history of fiber reinforcement in concrete, which began with asbestos in the 1900s and transitioned to steel, glass, and synthetic fibers like polypropylene after the health risks of asbestos were discovered. The presentation introduces fiber reinforced concrete as a composite material made of a concrete mix with short, discrete fibers uniformly distributed. It describes the types of fibers used, how fiber reinforced concrete is made, its advantages over traditional concrete like higher strength and ductility, and its applications in buildings and infrastructure.

1. A PRESENTATION ON
FIBER REINFORCED CONCRETE
OVER VIEW
SRI VENKATESWARA ENGINEERING COLLEGE
PRESENTING
Internal guide:
P.Jhansi mam
BY:
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CH.GOPI CHAND
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Civil engineering department

2. History
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1900s, asbestos fibers were used in
concrete. In the 1950s, the concept
of composite materials came into being
and fiber-reinforced concrete was one of
the topics of interest. Once the health
risks associated with asbestos were
discovered, there was a need to find a
replacement for the substance in
concrete and other building materials. By
the 1960s, steel, glass (GFRC), and
synthetic fibers such
as polypropylene fibers were used in
concrete. Research into new fiberreinforced concretes continues today.

3. INTRODUCTION
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Concrete is one of the most versatile building material.
Concrete is strong under compression yet weak under
tension, brittle and limited ductility material.
Therefore, a form of reinforcement is needed, steel bars
reinforce concrete against tension only locally.
Cracks in reinforced concrete members extend freely
until encountering a rebar.
The need for Multidirectional and closely spaced
reinforcement for concrete arises.
FRC is a concrete mix that contains short discrete fibers
that are uniformly distributed and randomly oriented.

6. Types of fibers
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Fibers include steel fibers, glass fibers, synthetic
fibers and natural fibers – each of which lend varying
properties to the concrete. In addition, the character of
fiber-reinforced concrete changes with varying
concretes, fiber
materials, geometries, distribution, orientation, and
densities.
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the composite (concrete and fibers) termed Vf. Vf
typically ranges from 0.1 to 3%. Aspect ratio (l/d) is
calculated by dividing fiber length (l) by its diameter (d).
Fibers with a non-circular cross section use an
equivalent diameter for the calculation of aspect ratio.

7. How is it Made
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Mostly the same as regular concrete
fibers are spread throughout the
aggregate and cement mix.
Small layers of the concrete are
poured on top of each other and
infused with the fibers and are then
connected
Process is tedious and costly
Big reason why this product costs so
much.

8. WHY FIBER ?
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Fibers are usually used in concrete to control
cracking due to plastic shrinkage and to drying
shrinkage. They also reduce the permeability of
concrete and thus reduce bleeding of water.
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Cracks in reinforced concrete members extended
freely until encountering a rebar.
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Fiber reinforced concrete is used when there is
requirement for elimination small cracks.

9. ADVANTAGES

VERY HIGH COMPRESSION STRENGTH
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HIGH TENSILE STRENGTH
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HIGH ELASTICITY MODULUS
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DUCTILE BEHAVIOUR
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HIGH DURABILITY

10. Mechanism Of Failure Of Concrete Cylinders
Under Compression Testing
1
0% *fiber
(control mix
2
3
0.25% fiber
4
0.5% fiber
1.0% fiber
*Fiber fraction by weight of cement content

11. Mechanism Of Failure Of Concrete Cylinders
Under Spilt Tensile Testing
0% fiber
(control mix
0.25% fiber
0.50% fiber
1% fiber

12. 
Due to embedded nano optical glass fiber
elements usually optical fibers. light is
conducted through the stone from one end to
the other.

For developing transparent concrete by
arranging the high numerical aperture Plastic
Optical Fibers (POF) .

13. AREAS OF APPLICATIONS OF FRC MATERIALS
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Thin sheets
shingles
roof tiles
pipes
prefabricated shapes
panels
shotcrete
curtain walls
Slabs on grade
precast elements
Composite decks
Vaults, safes.
Impact resisting structures

14. Transparent Panels

16. Transparent Partition Wall

17. Sources
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Internet:
http://www.litracon.hu/
http://www.danubiusmagazin.hu/magazin/tortenelem/uvegbeton
_e.html
Textbook:
Fundamentals of Materials Science and Engineering by William
D. Callister Jr. and David G. Rethwisch Chapter 15
Technical Journal:
Optics and Photonics News September 2008 issue “Using
Nano-Optics to Control the Phase of Light”