(511556690) pgpm 33 nicmar assignments

7/21/2019 (511556690) Pgpm 33 Nicmar Assignments

1/18

NICMAR

NICMAR INSTITUTE OF CONSTRUCTION MANAGEMENT AND RESEARCH

SCHOOL OF DISTANCE EDUCATION

ASSIGNMENT

NICMAR/CODE OFFICE

1. Course No. : PGPM 33

2. Course title : Materials & Logistics Management

3. Assignment No. : 11

4. Date of Dispatc : !"#!$#2!12

%. Last Date of receipt : 1%#!$#2!12

of Assignment at CD' office


2/18

ASSIGNMENT

(ou a)e *een appointe+ as manager of materials management +epartment of a

construction firm. ,e compan- is asing -ou to prepare a manual on procurement of materials.

Prepare a manual on procurement of materials *- co)ering te follo/ing:

1. 0actors to *e consi+ere+ for purcasing.

2. ource election.

3. election of uppliers.

4. crutin- of offers.

%. 0inal purcase.

. o/ to +e)elop purcasing policies an+ proce+ures.

". 0ormulate strategies for impro)ing efficienc- of procurement of materials +epartment.


3/18

Name of te Proect : De)eloping & Construction of an 5nternational

Airport 3!m a/a- from a cit-.

Proect pases : Pase 5 # Lan+ing strip of 1!!m /i+t

6or Description is as follo/s

a7 Cutting an+ +o8ing of 19!!9!!!cum of 'art. A)erage eigt !."%m.

*7 ,ransportation of 2!!!!cum of surplus eart from site to +umping place 3m

a/a- from site inclu+ing sprea+ing7. 0illing of $!!!!cum in lan+ing strip.

c7 ;ringing in 3!!!cum of san+ from 2!m 5nclu+ing sprea+ing an+ le)eling at

ite7.

+7 Procurement of 19%!9!!!Litres of ;itumen. Duration of /or 3!+a-s from !t

+a- of starting of /or. ;itumen to *e o*taine+ from refiner- at ;ongaigon in

Assam. Lea+ time upto site is 4% +a-s. torage facilit- a)aila*le at ite

%!9!!!litres ,an.


4/18

SCOPE OF WORK & DESCRI PTION OF EQUI PMENTS CONSI DERED

SCOPE OF WORK

6or in)ol)es +e)eloping an+ constructing a ne/ 5nternational Airport 3!


5/18

DESCRI PTI ON OF EQUI PMENTS CONSI DERED

EARTHWORK EQUIPMENTS

I) Ex cav ato rs

Cra!"r Excavator

Cra/ler e?ca)ators are e?ca)ators mounte+ on cain cra/lers /ic can *e

use+ for almost all terrain an+ t-pe of soil an+ are suita*le for slus- areas also.

,e- a)e a long *oom /it a *ucet an+ teet arrangement at en+ for e?ca)ating

collecting an+ +umping@ filling eart.

,ese e?ca)ators a)e 3! +egrees s/ing so can /or in all four +irections *-

stan+ing at one place onl-. ,ese e?ca)ators are a)aila*le in +ifferent capacit-

normall- use+ mo+els are '? !9 '? 1!!@ C!@ PC 1!!9 '? 2!!@ PC 2!! for

small me+ium an+ *ig si8e +epen+ing on *ucet an+ engine capacit- t-pe.

T#r" Mo$%t"& 'ac(o" Excavator c$* !oa&"r

,ese e?ca)ators a)e multipurpose uses lie in e?ca)ation9 loa+ing9

unloa+ing an+ sifting *ut te- a)e limitation +ue to t-res an+ spee+. ,ese

e?ca)ators a)e legs /ic pro)i+e some grip on slopes an+ +ifcult terrains *ut it

canBt *e use+ /it same ease as in cra/lers.

econ+l- it +oesnBt a)e s/ing an+ it can /or from eiter front or *ac an+ as

per /oring si+e operator as to mo)e is position. Lastl- spee+ /ise tese

e?ca)ators are slo/er tan Cra/ler mounte+ as cra/ler mounte+ mo+els are

a)aila*le in iger capacit- mo+els /ereas onl- *asic lo/er capacit- mo+el of

t-re mounte+ e?ca)ators are a)aila*le.


6/18

II ) DO+ERS

Cra!"r Do,"rs

,ese are cra/ler mounte+ locomoti)e fitte+ /it a +o8ing *la+e. A)aila*ilit-

of same is less tan tractor +o8ers.

Tractor Do,"rs

,ese are +o8ers attace+ normal tractors easil- a)aila*le.

Motor Gra&"rs

,ese are t-re mounte+ special tractors /it optional *la+e attacments

*et/een front an+ rear /eels an+ are use+ mainl- for finising /ors after

+o8ing for final le)eling an+ maing super#ele)ation an+ cam*er etc.

III) COMPACTION EQUIPMENT

Ro!!"rs

Ta%&"* Ro!!"r

,is is a smoot /eele+ roller /it t/o rolling /eels of appro?imatel- te

same /i+t.

S*oot W""!"& Ro!!"r

5t is most commonl- use+ roller an+ compaction is acie)e+ *- te /eigt of

te roller.

-.ro Ro!!"r

,ese rollers e?ert *ot static an+ +-namic pressures. 5t gi)es almost +ou*le

compaction of its si8e of non#)i*rator- t-pe.


7/18

I -) TRANSPORTING EQUI PMENT

D$*0 Tr$c(s

,ese trucs are a)aila*le in +ifferent capacit- an+ are -+raulicall- operate+

for +umping material from rear *o+-.

Tractor .t H#&ra$!.c Tro!!"#

,ractors /it -+raulicall- operate+ trailers are also a goo+ options *ut

capacit- is less so more num*ers are reuire+.

Ta%("rs

,aners are trucs mounte+ /it tans to carr- liui+s9 gases etc. ,is /ill *e

use+ in transporting /ater an+ *itumen to /orsite. ;itumen carriers a)e termal

insulation.


8/18

CALCULATION OF PER D AY WORK

E1$.0*"%t O$t0$t

Main 'uipment output in tis t-pe of /or +epen+s mainl- on a)aila*ilit- of

supporting euipments an+ +umping areas. 0aster te loa+ing9 faster te transporting

an+ faster te unloa+ing can *e easil- seen an+ te same c-cle is repeate+.

'ac set of euipment sall consist of one e?ca)ator9 at least tree +ump

trucs. 6ater taner9 +o8er an+ roller can *e sare+ /it eac t/o set of euipments.

No. of tese sets can *e furter +eci+e+ on te *asis of seuence9 num*er of +a-s

reuire+ to complete eac acti)it- an+ constraints if an-.

As 1!!m /i+e strip is to *e constructe+ in 1!!+a-s /ic inclu+e follo/ing

acti)ities an+ uantities:

As $3!!! cum of eart an+ san+9 togeter9 /ill co)er appro?imatel- 11!" m

lengt of 1!!m /i+e strip consi+ering a)erage +ept of filling as !."%m. All tis

/or is to *e complete+ in 1!! +a-s.

'?ca)ation an+ +umping sall *e planne+ to *e complete+ in $! +a-s. o

reuire+ e?ca)ation per +a- is 12%! Cum an+ same is to *e transporte+ to site or

outsi+e same +a-. ,eoreticall- for tis one no. e?ca)ator /it 1!! cum@ our output

for 12.% ours /oring seems sufficient *ut practicall-9 consi+ering c-cle time of

+ump trucs inclu+ing time reuire+ for positioning loa+ing etc.9 a)erage output

re+uces to ! Cum @ our. 5n tis case 2 nos. e?ca)ators for 1!.41 ours /ill *e

reuire+ /ic can *e easil- acie)e+ e)en after time lapses for +ail- fuel filling9

maintenance9 lunc an+ tea *reas etc.. 'ac e?ca)ator is to *e supporte+ *- 3 +ump

trucs of 1!#1% cum capacit-.


9/18

Cost o2 "ac "1$.0*"%t 0"r &a# o2 or(

a) Excavator

As per present maret /e can get e?ca)ator Es 292%9!!!@# per mont

e?clu+ing cost of fuel *ut inclu+ing operating an+ maintenance cost

o per +a- cost of ire F Es 22%!!!@2! ours7 ? 1!.41 ours ? 2 nos.

F Es 1$!1$@#

Per +a- D fuel cost7 F 2 no. ?1% litre @ our?1!.41 our? Es 4!@ litre

F Es 12942@#

,e total operating an+ fuel cost togeter for e?ca)ators 1$!1$12427

F Rs 34564 .%c!$&.%7 a!! car7"s. 8a)

) D$*0 Tr$c(s

,otal nos. +ump trucs a)e *een consi+ere+ for t/o sets of e?ca)ators.

ire carges of Dump trucs F 49!!!@# ? nos.per +a-7 F 249!!!@#

D cost consi+ering t/o trips of eac +ump truc to an+ fro 3m eac +istance /ill

*e calculate+ as follo/s:

Distance tra)ele+ per our F 2 ,rips ? 337 m F 12 ms

Per our fuel consumption F 12@2."%m per litre F 4.3 liter per our

,otal D cost F nos. ? 1!.41 ours ? 4.3 lit@ our ? Es 4!@ litre

F Es 1!$3@#

,e total operating an+ fuel cost togeter for Dump trucs /ill *e 24!!!1!$37

F Rs 39:;3 .%c!$&.%7 a!! car7"s


10/18

c) Do,"r

ire carges of Do8er F 19%!9!!! @2! ours ? 1!.41 ours

F Es 9!!@#

Per +a- D fuel cost7 F 1% litre @ our?1!.41 our? Es 4!@ litre

F Es 924@#

,e total operating an+ fuel cost togeter for Do8er /ill *e !!247

F Rs 6==5= .%c!$&.%7 a!! car7"s .%c!$&.%7 a!! car7"s8")


11/18

2) Wat"r

Ta%("r

6ater ,aners can *e eiter ire+ or +irect /ater uantit- can *e pai+ to

supplier.

Consi+ering MDD as 1. an+ 11H MC an+ natural moisture content as H

/e nee+ *alance %H /ater uantit- per +a- as follo/s:

F 12%! cum ? 1. ? 11#7H? 1!!! litres

F 191$9"%!@#

Consi+ering cost of /ater as " paise per litre inclu+ing filling at source 9

transport an+ unloa+ing at site cost of /ater reuire+ per +a-F 11$"%! ? !.!"

? :363/@ .%c!$&.%7 a!! car7"s82)

o total cost of e?ca)ation an+ filling in lan+ing strip@ +isposing in 3m a/a-

/or per +a- /ill *e a7*7c7+7e7f7F Es 19!9%2@#

Per unit cost /ill *e F 1!%2@12%! Cum FRs 88 er cu!

imilarl- for *ringing in 3!!! cum san+ com*ination of e?ca)ator an+ tippers to *e

/ore+ out as follo/s:

Consi+ering time for positioning +umper F 2 minutes

0illing *- e?ca)ator F minutes

,urning an+ mo)ing out F 2 minutes

,otal time consume+ in filling one +umper F 1! minutes

Minimum required dumpers 6 nos. per hour and first dumper should come back

after 50 minutes.

Distance of 2! m in loa+e+ con+ition /ill *e tra)ele+ in 4! minutes at a spee+

of 3!m@ our an+ same +istance /ill *e co)ere+ in 3! minutes at a spee+ of 4!m@

our /ile returning. a- 1! minutes more /ill *e spent in turning an+ unloa+ing. o


12/18

first +umper /ill *e returning *ac to e?ca)ator in $! minutes /ereas e?ca)ator /ill

*e free after ! minutes it means it can also loa+ t/o more +umpers *efore starting

secon+ c-cle of loa+ing.

5t is o*)ious from a*o)e tat $ +umpers /ill *e reuire+ /it an e?ca)ator.

Cost of e?ca)ator per +a- F Rs 65=55 .%c!$&.%7 a!! car7"s. 8a)D$*0"rs

Cost of Dumpers per +a-

ire carges of Dump trucs per +a- F 49!!!@# ? $ nos.

F 329!!!@#

D cost consi+ering Nine trips of eac +ump truc to an+ fro 2!m eac +istance

/ill *e calculate+ as follo/s:

Distance tra)ele+ per our F ,rips ? 2!2!7 m

F 3! ms

Per +umper fuel consumption F 3!@2."%m per litre

F 131 liter per +a-

o total D cost for Dump trucs F $ nos. ? 131 litre ? Es 4!@ litre

F Es 412!@#

,e total operating an+ fuel cost togeter for Dump trucs /ill *e 3!!!!412!7

F Rs 6;=4 .%c!$&.%7 a!! car7"s 8a)

8) Do,"r

ire carges of Do8er F 19%!9!!! @2! ours ? 1!.41 ours

F Es 9!!@#

Per +a- D fuel cost7 F 1% litre @ our?1!.41 our? Es 4!@ litre

F Es 924@#


13/18

,e total operating an+ fuel cost togeter for Do8er /ill *e !!247

F Rs 6==5= .%c!$&.%7 a!! car7"s 8)

8c) Gra&"r

Per +a- cost of ire F Es 22%!!!@2! ours7 ? 1!.41 ours ? 1 nos.

F Es !!@#

Per +a- D fuel cost7 F 1 no. ?13 litre @ our?1!.41 our? Es 4!@ litre

F Es %9413@#

,e total operating an+ fuel cost togeter for gra+er /ill *e !!%4137

F Rs 699== .%c!$&.%7 a!! car7"s 8c)

8&) Ro!!"r

Per +a- cost of ire F Es 12!!!!@2! ours7 ? 1!.41 ours ? 1 nos.

F Es 4$!%@#

Per +a- D fuel cost7 F 1 no. ? $ litre @ our?1!.41 our ? Es 4!@ litre

F Es 3331@#

,e total operating an+ fuel cost togeter for roller /ill *e 4$!%33317

F Rs ;63> .%c!$&.%7 a!! car7"s 8&)

o total cost of *ringing an+ filling san+ in lan+ing strip from 2!m +istance

a/a- /or per +a- /ill *e a7*7c7+7 F Rs 6B==B;:5/@

Per unit cost /ill *e ? 122$%@2% Cum ?Rs "#$ er cu!


14/18

SECOND 'EST ALTERNATI-E

econ+ *est alternati)e is use of I.C.;. t-re mounte+ *acoe loa+er cum

e?ca)ators an+ tractor le)elers an+ tractor +o8ers *ut in tis case I.C.;. as less

*ucet capacit- an+ ultimatel- almost alf te spee+ of /or. imilarl- tractors a)e

less spee+ an+ capacit- . 5t /ill *e a+)isa*le to use com*ination of cra/ler an+ t-re

mounte+ e?ca)ators. ;ut in no case spee+ of /or as acie)e+ in alternati)e one can

*e acie)e+.

ence in all respect secon+ *est alternati)e is use of com*ination of cra/ler

an+ t-re mounte+ e?ca)ators an+ +ump trucs e)en of smaller capacit- *ut num*ers

to increase to maintain spee+ of /or.


15/18

PROCUREMENT OF 'ITUMEN

,otal reuirement of Material F 19%!9!!! litres

Duration of /or F 3! +a-s from !t +a- of starting of /or

ource F Maarastra

Lea+ time F 4% Da-s

torage facilit- F %!9!!! litres

,otal consumption in 3!+a-s /ill *e 1%!!!! litres. ence consi+ering %!!!

litres per +a- after %

t

+a-.

Consi+er cost of eac litre of *itumen is Es 2!@# an+ eac cost of or+ering is Es

1!!!@# an+ cost of storage per +a- per litre is Es 1@#.

'= FJn+er root 2A7@P77FJn+er root 2? 1%!!!!?1!!!7@2!?!.!%77F 1"321L

So t%ere s%ou' (e 8 or'ers o) "$*+" itres ,n' " or'er o) ""-*+ itres.

Cec for economic or+er uantit-

Consi+er as a*o)e cost of material F 3!9!!9!!!@#

r+ering cost F !!!@#

5n)entor- cost assuming minimum $%!! litres F $%!!@#

Tota! cost ? 346544/@


16/18

Co%s.&"r a%ot"r cas" .t 64 or&"rs o2 65444 !.tr"s


r+ering cost F 1%!!!@#

5n)entor- cost assuming minimum "%!! litres F "%!!@#

Tota! cost ? 34B==B544/@

Co%s.&"r a%ot"r cas" .t 5 or&"rs o2 34444 !.tr"s


r+ering cost F %!!!@#

5n)entor- cost assuming minimum 1%!!! litres F 1%!!!@#

Tota! cost ? 34B=4B444/@

1st

or+er +ate at start of /or F ! an+ +ate of last or+er sall *e suc tat tere is no

sortage of *itumen at en+.

afet- le)el to *e maintaine+ is as follo/s:

1st

or+er !#4% +a-s F 1"321 litres

2n+

or+er 1#4 +a-s F 1"321 litres

3r+

or+er 2#4" +a-s F11432 litres

,otal stoc on %t

+a- F 4!"4 litres


17/18

,is can *e easil- un+erstoo+ *- follo/ing ta*le.

r+erNo.

r+erDa-

6orDa-

peningtoc Eecei)e+ Consume+

Closingtoc

1 ! 4% ! 1"321 ! 1"3212 1 4 1"321 1"321 ! 3442

3 2 4" 3442 11432 ! 4!"4

! 4!"4 ! %!!! 41!"4

1 41!"4 ! %!!! 3!"4

2 3!"4 ! %!!! 31!"4

4 1$ 3 31!"4 1"321 %!!! 433%

4 433% %!!! 3$3%

% 3$3% %!!! 333%

% 21 333% 1"321 %!!! 4%"1" 4%"1 %!!! 4!"1

$ 4!"1 %!!! 3%"1

3%"1 %!!! 3!"1

2% "! 3!"1 1"321 %!!! 43!3"

"1 43!3" %!!! 3$!3"

"2 3$!3" %!!! 33!3"

" 2$ "3 33!3" 1"321 %!!! 4%3%$

"4 4%3%$ %!!! 4!3%$

"% 4!3%$ %!!! 3%3%$" 3%3%$ %!!! 3!3%$

$ 32 "" 3!3%$ 1"321 %!!! 42"

"$ 42" %!!! 3""

" 3"" %!!! 32"

$! 32" %!!! 2""

3 $1 2"" 1"321 %!!! 4!!!!

$2 4!!!! %!!! 3%!!!

$3 3%!!! %!!! 3!!!!

$4 3!!!! %!!! 2%!!!$% 2%!!! %!!! 2!!!!

$ 2!!!! %!!! 1%!!!

$" 1%!!! %!!! 1!!!!

$$ 1!!!! %!!! %!!!

$ %!!! %!!! !

! ! !


18/18

Proper arrangement of reuire+ si8e of taners /it eating facilities sall *e

ensure+. torage tans sall a)e proper insulation an+ eating facilit- also.

,otal cost of transportation /ill *e 1. per M, per =B4:4/@

Sa%& 2.!!.%7 cost ? 6B==B;:5 x 5 &a#s ? Rs >B69B;=5/@

'.t$*"% 0roc$r"*"%t ? Rs 3>B9=B444/@

Tota! ? Rs 6B34B6;B445/@

Co%tractors Pro2.t ? 86346;44565) ? 6;5=:56/@

T"r"2or" Tot, Pro/ect Cost 0 "-#$"8123@

As per a*o)e plan /or sall *e complete+ in gi)en time sce+ule o/e)er

some stan+*- an+ *ac#up euipment /ill *e reuire+ /ic /ill incur a++itional

cost.

(511556690) pgpm 33 nicmar assignments

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