Blast Resistant Concrete

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RESISTANT

BLAST

CONCRET

E


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We know that concreteis the most widely usedmanufactured material on our planet.

In todays world we have witnessed the loss of livesdue to eect of terrorist attacks against our

concrete structures.So a new type of concrete called Blast Resistant

Concrete has een developed to overcome this typeof limitations of concrete.

Blast resistant concrete is developed with choppedsynthetic !ers treated y a proprietary processthat permits !ers to e added to concrete mi"ed incommercial e#uipment.

INTRODUCTION:


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WHY WE USE FIBERS INCONCRETE:Adding fbers to concrete imro!es

mec"#nic#$ roerties:

Increases toughness.

Increases ductility and $e"ural resistance.

%ets higher and more stale tensile strength.

Increases shear resistance.

And c#n imro!e contro$ %or t"e %o$$o&inge'ects:

Impact.

Shrinkage.

&ire resistance.


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'ither (Caron &ier Reinforced Concrete)

*C&RC+

,r (-ltra igh /erformance &ier ReinforcedConcrete) *-/&RC+

B$#st Resist#nt Concrete "#s beenm#de o% t&o di'erent t(es o%

concretes:


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0oday short caron !ers 1 measuring notmore than 2.3 inches 1 are found in uildings4ridges and slas to limit the si5e of cracks.

But for C&RC we use up to 6 inches in length4signi!cantly improving a structure7s aility towithstand lasts4 hurricanes and other naturaldisasters.

8ue to the greater length of these !ersstructural properties and spalling resistance isalso greatly enhanced.

C#rbon Fiber Rein%orced Concrete:


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Type of

Fibers Equivalent

diameter

m

Relativ

e

density

Tensile

strength

MPa

Elastic

modulu

s

GPa

Ultimate

elongation

!gnition

tempera

ture

"#

Melt$

o%idation$ or

decomposition

temperature "#

&ater

absorption

'crylic ()*(+, (-(.*

(-(/

01+*

(+++

(,*(2 1-3*3+-+ * 00+*0)3 (-+*0-3

'ramid (0 (-,, 02++ .+ ,-, 4igh ,/+ ,-)

#arbon (+*() (-.*(-1 ),3+*

,+++

)/+ 0-+*0-, 4igh 3++ 5il

5ylon 0) (-(, 21+ 3 0+ * 0++*00+ 0-/*3-+

Polyester

0+ (-),*(-)2

0)+*((++

(1 (0*(3+ .++ 0.+ +-,

Poly

ethylene

03*(+++ +-20*

+-2.

13*32+ 3 )*/+ * ()+ 5il


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STANDARD STEE) REINFORCEDCONCRETE AFTER B)AST


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B)AST RESISTANT CONCRETEAFTER B)AST


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9ow weight

T"e roerties o% c#rbon fberrein%orced concrete


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-/&RC is a concrete which is een otainedfrom the development of igh /erformance&ier Reinforced Concrete.

0he -/&RC resisted the high e"plosion lastwithout any disintegration from the ack ofthe panels causing shrapnel.

-/&RC is dierent ecause needle1thin steel

!ers are added into the concrete mi" insteadof steel reinforcing ars to increase its tensilestrength.

U$tr# Hig" *er%orm#nce Fiber Rein%orced

Concrete:


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#ompressive

strength6psi7

Fle%ural

strength6psi7

Toughness6lbs*in7

Conventional

concrete

6151 750 186

Blast resistant

concrete (only fiber)

6652 1904 1834

Blast resistant

concrete(with fiber

an steel)

6619 2114 2691

di'erence bet&een t"e con!ention#$concrete #nd b$#st resist#nt

concrete +#ccording to testscond,cted-:


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-/&RC is a new type of material that comines a verystrong and dense cementicious matri" with very high !ercontent.

It has a very high compressive strength of :;;


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9onger caron !ers are more likely to all up as the concrete is mi"edF#i$,res #nd Ad!ices


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A**)ICATIONS

industrial construction appli industrial construction appli


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0he potential of this Blast resistant concrete isgreat.

0his concrete has very special propertieswhich can revolutioni5e the constructionindustry oering lighter1weight4 safer andstronger uildings.


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Blast Resistant Concrete