intern report(revised)

8/12/2019 Intern Report(Revised)

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GIK Institute of Engineering Sciences & Technology

Faculty

of Material Sciences and Engineering

Masood Khan

2008121

Internship Report:

PCSIR a!s Co"ple#Pesha$ar

%''



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Introduction:

In summer internship I found the opportunity to work in PCSIR Labs Complex peshawar. The broad

based a!ti"ities of the PCSIR en!ompass almost the entire industrial se!tor in the !ountry# for the

industrial units in operation ha"e their groundwork in s!ien!e and te!hnology in whi!h the PCSIR isboth prominent and all too "isible an organi$ation on the national plan. The PCSIR being the foremost

industrial R % & organi$ation is the largest produ!er of indigenous te!hnologies in an organi$ed

fashion.

The Peshawar Laboratories of the Pakistan Coun!il of S!ientifi! and Industrial Resear!h were

initiated in '()) with a "iew to espe!ially in"estigating raw material resour!es of the region and

assisting in its industrial de"elopment. In the first formati"e years* the Laboratories were manned by a

skeleton staff largely engaged in in"estigations on the e"aluation of indigenous raw materials. +ith

the a"ailability of ,ualified s!ientists upon !ompletion of their training abroad* emphasis was pla!ed

on the de"elopment of pro!esses of industrial importan!e* dire!ted to assisting in import substitution.This led to a more a!ti"e intera!tion with the industry resulting in the de"elopment of se"eral

pro!esses of industrial importan!e. -bout two do$en su!h pro!esses ha"e already been leased out

for !ommer!ial exploitation. The laboratories ha"e o"er the years !ompleted se"eral adho! proe!ts

referred by the industry ad undertaken analyses of hundreds of samples of raw materials and

produ!ts. /esides the maor proe!ts des!ribed here in after and the patents obtained* about )00

resear!h papers ha"e been published in the national and international s!ientifi! ournals of repute

In PCSIR I interned in 1aterial S!ien!e &i"ision. It was established in &e!ember 200'. In 1aterial

S!ien!e &i"ision* some of the fa!ilities and e,uipment a"ailable are

-tomi! absorption spe!trophotometer. 3.4. double beam spe!trophotometer.

5lame photometer.

/all mill.

Tensile strength testing ma!hine.

Twist !ounting* Labor 1ixer.

+ater permeability* air permeability.

Pill testing.

Lana meter.

Rotary 6iln.

Lead Lined Rea!tion 4essel.

7pen pan e"aporators.

Settling tanks.



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5ilter press.

4ibratory s!reen.

Centrifuge.

Pulp /eater.

Rotary mixer.

9aw !rusher.

Projects:Two proe!ts were gi"en to me. These proe!ts are gi"en following

') *e+elop"ent of different types of ,on-E#plosi+e *e"olition

agents for concrete and Stones)

%) Material .nalysis and de+elop"ent of grinding $heel used for

gypsu" polishing in PCSIR)

The work done on these proe!ts are des!ribed in !oming pages.



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PROJECT 1: DEVELOPMENT OF FOLLOWING TYPES

OF N ON E !PLOSIVE DEMOLITION "GENT FOR

CONCRETE "ND STONES#

Introdu!tion

;onexplosi"e demolition agents are !ommer!ial produ!ts that are an alternati"e to explosi"es in demolition*

mining* and ,uarrying. These are also !alled non explosi"es !ra!king agents.

To use nonexplosi"e demolition agents in demolition or ,uarrying* holes are drilled in the base ro!k like they

would be drilled for use with !on"entional explosi"es. - slurry mixture of the nonexplosi"e demolition agent

and water is poured into the drill holes. 7"er the next few hours the slurry expands* !ra!king the ro!k in a

pattern somewhat like the !ra!king that would o!!ur from !on"entional explosi"es.

;onexplosi"e demolition agents offer many ad"antages in!luding that they are silent and do not produ!e

"ibration the way a !on"entional explosi"e would. In some appli!ations !on"entional explosi"es are more

e!onomi!al than nonexplosi"e demolition agents. In many !ountries these are a"ailable without restri!tionunlike explosi"es whi!h are highly regulated.

These agents are mu!h safer than explosi"es* but it is important to follow dire!tions !losely in order to a"oid

steam explosions during the first few hours after these materials are pla!ed.

Some !ommer!ially a"ailable nonexplosi"e demolition agents in!lude

<!obust

&expan

Sylentmite

&emosol

6ayati

Ter1ite

5R-CT.-=

/RIST-R



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S1ite

/etonamit

La$o%&a%' Wo%(: D)*o+,&,on "-)n&

') Type ':

Pul+eri/ation

Clin0er Cooled to RT

'1 parts of Calciu" Fluoride Po$der

2 3 parts of calciu" Sulphate

4CaS567 2'

Screening through ' "esh screen

Calcination of Mi#ture in Electric

Furnace Te"perature: '% C

Grinding and Passing through 9

Material .nalysis:

9)3 ; !y $t Ca5 2 '%) ; !y $t

CaF%

Preparation of <rea0ing

Co"position:

=>)3 pts of ground Clin0er 2 ')

ts ?R a ent Mela"ine Resin

Preparation of .@ueous Slurry:

.dding 3; ?ater

Testing at Te"perature A 1

C



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%) Type %:

Clin0er Cooled to RT

= parts of CaF% Po$der

2 = parts of ,aF 2 ' parts of 8uic0 li"e

Ca5

Calcination of Mi#ture in Electric

Furnace Te"perature: '6 C

Grinding and Passing through 9

Material .nalysis:

>')' ; !y $t Ca5 2 =)' ; !y $t

CaF%

,o .u#iliary agent

Preparation of .@ueous Slurry:.dding 3; ?ater


C



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3) Type 3:

Mi#ing $ith '1 pts $ater

*rying

Pul+eri/ation

9)% pts Silicic .cid2' parts of 8uic0 li"e 4CaC537

Screening through >>B" screen

Pelleti/ation:

Pellets dia A ')1 C"

*rying in Electric Furnace:

T A '3 C t A 3 "in

Material .nalysis:9; free Ca5 2 6; 3Ca5)Si5%

Preparation of <rea0ing

Co"position:

Mi#ed $ith ') pts ?R agent

Preparation of .@ueous Slurry:

.dding 36; ?ater


C



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?et "ethod for Material .nalysis of Grinding

?heel used for Gypsu" Polishing:

Main Steps:

'. The small portion of wheel is ground.

2. Powder is dissol"ed in ACl.

8. -fter some time the solution is filtered and Si72 is remo"ed as pre!ipitate.

:. ;A:7A and ;A:Cl is dissol"ed in solution and R278 is remo"ed.

). -mmonium 7xalate is dissol"ed in solution and Cal!ium 7xalate is pre!ipitated and remo"ed

by 5ilteration.

>. -ll the pre!ipitates are ignited at '000 ! for 80 minutes.

?. The !on!entraton of Cal!ium and Sodium is determined by 5lame Photometer.

Conclusions:

SampleB ' .00 g

+eight of Si72 B 0.2:02 g

+eight of R278 B 0.02') g

+eight of Ca B 0.0(? g

+eight of ;a B 0.8:8 g

+eight of Loss B 0.'?: g

intern report(revised)

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