FIBER REINFORCED CONCRETE

ovariesracialUrban and Civil

Nov 25, 2013 (3 years and 8 months ago)

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FIBER
-
REINFORCED CONCRETE

Joanna Żurek

Y7RAXJ

FIBERS AS A REINFORCEMENT

Historical

perspective

Ancient
times

-

h
orsehair

for
mortar
, straw in
mud

bricks


FIBERS AS A REINFORCEMENT

Historical

perspective

1900s
-

asbestos

fibre

was
used

in
concrete


FIBERS AS A REINFORCEMENT

Historical

perspective

1960s


asbestos

was
replaced

by
steel
,
glass
,
synthetic

fibres


FIBER
-
REINFORCED CONCRETE




What

is

it
?


h
ydraulic

cement


f
ine
or

fine and
coarse

aggregate



DISCONTINUOUS DISCRETE FIBERS (
various

shapes

and
sizes
, materials
-
mostly

steel
)


o
ther

addmixtures

commonly

used

in
conventional

concrete


FIBER TYPES USED NOWADAYS

Steel
fibers

Glass
fibers

PVA
fibers

FIBER TYPES USED NOWADAYS


STEEL FIBERS


MICRO
-
SYNTHETIC FIBERS


GLASS FIBERS


CELLULOSE FIBERS


NATURAL FIBERS


PVA FIBERS


OTHER FIBERS AND BLENDS

PROPERTIES


Depend

on the
type

and
volume

of
fibers

in
mixture



Increased

modulus

of
elasticity


Increased

flexural

strength


Increased

toughness


Increased

fatigue

strength


Non
-
corrosive

environment for
steel

fibres


PROPERTIES

ADVANTAGES


Better

suited

to
minimize

cavitation
/
erosion

damage


Reduction

of
structure

weight


Prevent

catastrophic

failures



Suitable

to
use

in the
quake

prone

areas


Polypropylene

fibres

reduce

internal

forces


Reduce

of cracking and
bleeding


DISADVANTAGES


Problems

with
incorporating

fibers

into

the
cement
matrix

Polypropylen

fibers
:


Poor

fire

resistance


Sensitivity

to
sun

light

and
oxygen


APPLICATIONS


Runway,
aircraft

parking,
pavements


Tunnel

lining

and
slope

stabilization


Blast

resistant

structures


Thin

shell
,
walls
,
pipes
,
manholes


Dams

and
hydraulic

structures


Other

applications

STEEL
-
FIBER REINFORCED CONCRETE
APPLICATED IN TUNNEL

FIBER
-
REINFORCED POLYMER CONCRETE
USED ON THE WEMMERSHOEK DAM



STEEL
-
FIBER REINFORCED CONCRETE
ELEMENT FOR BRIDGE

STEEL
-
FIBER REINFORCED CONCRETE
FOR SLOPE STABILIZATION

THANK YOU FOR YOUR ATTENTION