Carriage of Material

8/8/2019 Carriage of Material

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Chapter-1

Carriage of Materials

Preamble:

1. The provision of tipper has been made in hours where lead is known like disposal of thematerials upto 1000 m. In case where lead is variable like carriage of hot mix orconcrete mix from plants or earth from borrow areas, provision has been made in termsof tonne-kilometer (t-km), which can be adopted as per actual conditions.

2. Provision has been made for a tractor trolley instead of tipper where dismantledmaterials of sorts or material having more volume as compared with weight are required tobe transported. This arrangement will be economical.

3. The cost of carriage will vary depending upon the riding surface of the road. Prevision has

accordingly been made considering surface roads, unsurfaced graveled roads andkatcha tracks.

4. Analysis for loading has been done both for manual and mechanical means for adoptionas per actual situations.

5. Where loading is done by mechanical plant like HMP or batching plant and there isautomatic loading in tippers, provision of loading and un-loading has been made at rateof 10 per cent of cost of carriage to account for time taken by the tipper for gettingloaded at the plant and un-loadjng in the paver or otherwise at site.

6. Although the market rates for supply of aggregates at site are generally taken forestimation purpose, rate for crushing of aggregate have also been analysed as most ofthe contractors prefer to crush their own aggregates in case of large projects exceedingRs.50 crores in value.

7. The cost of material shall be evaluated considering the cost at crushing plants and costof carriage including loading and unloading or the rates for supply at site dependingupon system being followed at particular locations. These rates should be comparedwith the rates for own crushing and carriage by the construction agency.

Sr.No.

Reference toMoRT&H

SpecificationsDescription Unit Quantity

RateRs.

1.1Loading and Unloading of StoneBoulder/Stone Aggregates/Sand/Kankar / Moorum

Placing tipper at loading point, loadingwith front end loader, dumping, turningfor return trip, excluding time forhaulage and return trip.

Unit = cumTaking output = 5.5 cum


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Time required fori) Positioning of tipper at loading

pointii) Loading by front end loader 1 cum

bucket capacity @ 25 cum per

houriii) Maneuvering, reversing, dumping

and turning for returniv) Waiting time, unforeseen

contingencies, etc.

1 Min

13 Min

2 Min

4 Min

Total 20 Min

a) MachineryTipper 5.5 tonnes capacityFront end-loader 1 cum bucket

capacity hour @ 25 cum/hour

Hour

Hour

0.33

0.33b) Overheads % on (a)

c) Contractor's profit @ % on (a+b)

Note:

Cost for 5.5 cum = a+b+c

Rate per cum = (a+b+c)/ 5.5

Unloading will be by tipping.

1.. 2... Loading and Unloading of StoneBoulders by Manual Means

Unit = cumTaking output =5.5 cum

a) LabourMateMazdoor for loading and unloading Day

0.110.75

b) MachineryTipper 5.5 tonne capacity Hour 0.75

c) Over heads @ % on (a+b)

d) Contractors Profit @ % on (a+b+c)

Cost for 5.5 cum = a+b+c+d

Rate per cum. (a+b+c+d) / 5.5

Note Unloading will be by tipping

1..3. Loading and unloading of cement or steel by manual means and stacking


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Unit = tonneTaking output = 10 tonnes

a) LabourMate

Mazdoor for loading and unloading

Day

Day

0.08

2.00b) Machinery

Truck 10 tonne capacity Hour 2.00

C) Overheads @ % on (a+b)

d) Contractors profit @ % on (a+b+c)

Cost for tones = a+b+c+d

Rate per tones = (a+b+c+d)/10

1. 4. Cost of haulage excluding loading andunloading

Haulage of materials by tipper excludingcost of loading, unloading andstacking.

Unit = t/km

Taking output 10 tonnes load and lead10km =100t.km

Case 1 Surfaced Road

Speed with load : 25km / hour

Speed while returning empty : 35km/hour

a) Machinery

i) Tipper 10 tonne capacity

Time taken for onward haulage withloadTime taken for empty return trip

Hour

Hour

0.4

0.29

b) Over heads @ % on (a)

c) Contractors profit @ % on (a+b)


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Cost for 100 t.km = a+b+c

Rate per t. km = (a+b+c)/100

Case-ll: Unsurfaced Gravelled RoadSpeed with load : 20 km/hourSpeed for empty return trip: 30 km/hour

a) Machinery

i) Tipper 10 tonnes capacityTime taken for onward haulage withloadTime taken for empty return trip

Hour

Hour

0.5

0.33

b) Overheads @ % on (a)

c) Contractor's profit @ %on (a+b)

Cost for 100 t. km = a+b+c

Rate per t.km = (a+b+c)/100

Case-ill: Katcha Track and Track inRiver Bed / Nallah Bed andChoe Bed

Speed with load: 10 km/hourSpeed while returning empty: 15km/houra) Machineryi) Tipper 10 tonnes capacityTime taken for onward haulage

Time taken for empty return trip

Hour

Hour

1

0.67

b) Overheads % on (a)c) Contractor's profit @ % on

(a+b)Cost for 100 t.km = a+b+cRate per t.km = (a+b+c)/100

1.. 5 Hand Broken Stone Aggregates 63mm Nominal SizeSupply of quarried stone, handbreaking into coarse aggregate 63

mm nominal size (passing 80 mm andretained on 50 mm sieve) andstacking as directed.


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Unit = cumTaking output = 1 cum

a) LabourMate

Mazdoor

Day

Day

0.06

1.5b) MaterialSupply of quarried stone 150-200 mmsize cum.

1.10

c) Over heads @ % on (a+b)

d) Contractors profit @ % on (a+b+c)Rate per cum = a+b+c+d

1.. 6. Crushing of Stone Aggregates 13.2mm Nominal Size

Crushing of stone boulders of 150mm size in an integrated stonecrushing unit of 200 tonnes per hourcapacity comprising of primary andsecondary crushing units, beltconveyor and vibrating screens toobtain stone aggregates of 13.2 mmnominal size.

Unit : cum

Taking Output = 600 cum at crusherlocationa) LabourMateMazdoor skilledMazdoor including breaking of anyover Size of boulder

DayDayDay

0.76217

b) MaterialStone Boulder of size 150 mm andbelow

Cum 800

c) MachineryIntegrated stone crusher of 200 TPHincluding belt conveyor and vibratingscreens

Front end loader 1 cum bucketcapacity

Tipper 5.5 cum capacity

Hour

Hour

Hour

6

20

20

d) Overhead charges @ % on(a+b+c)

e) Contractor's profit @ %on


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(a+b+c+d)

Cost for 600 cum = a+b+c+d+eRate per cum = (a+b+c+d+e)/600

Note1. 800 cum of stone boulders are

needed to get 600 cum of stonechips of size 13.2 mm.

2. 95 per cent of above cost will beattributed to the production of 600cum of stone chips of 13.2 mmsize and balance 5 per cent to theproduction of stone dust whichcomes out as a by-product.

3. The integrated stone crusherincludes primary and secondarycrushing units.

1. 7. Crushing of Stone Aggregates 20mm Nominal Size

Crushing of stone boulders of 150mm size in an integrated stonecrushing unit of 200 tonnes per hourcapacity comprising of primary andsecondary crushing units, belt

conveyor and vibrating screens toobtain stone aggregates of 20 mmnominal size.

Unit : cumTaking Output = 670 cum at crusherlocation

a) LabourMateMazdoor SkilledMazdoor including breaking of anysize boulder

DayDayDay

0.76217

b) MaterialStone boulder of size 150mm andbelow

Cum 800

c) MachineryIntegrated stone crusher of 200TPH including belt conveyor andvibrating screensFront end loader 1 cum bucketcapacity


Hour

Hour

Hour

6

20

20d) Over head charges @ %on (a+b+c)


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Note

e) Contractors profit @ %(a+b+c+d)

Cost for 670 cum = a+b+c+d+e

Rate per cum = (a+b+c+d+e)/670

1. 800 cum of stone boulders areneeded to get 600 cum of stonechips of size 20 and 40 mm.

2. 90 per cent of above cost will beattributed to the production of 670cum of stone aggregates of 20 mmsize and balance 10 percent will befor smaller size aggregates andstone dust which comes out as a

by product.3.The integrated stone crusher

includes primary and secondarycrushing units.

1.8. Crushing of Stone Aggregates 40mm Nominal Size

Crushing of stone boulders of 150 mmsize in an integrated stone crushingunit of 200 tonnes per hour capacitycomprising of primary and secondarycrushing units, belt conveyor andvibrating screens to obtain stoneaggregates of 40 mm nominal size.Unit : cumTaking Output = 750 cum atcrusherlocation.a) Labour MateMazdoor Skilled

Mazdoor

DayDay

Day

0.762

17b) MaterialStone Boulder of size 150 mmand below

Cum 800

c) MachineryIntegrated stone crusher of 200TPHIncluding belt conveyor andvibrating screensFront end loader 1 cum bucketcapacity


Hour

Hour

Hour

6

20

20d) Overhead charges @ % on

(a+b+c)e) Contractor's profit @ % on

(a+b+c+d)


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Cost for 750 cum = (a+b+c+d+e)x0.85Rate per cum = (a+b+c+d+e)x0.85/750

Note: 1. 800 cum of stone boulders

are needed to get 600 cum ofstone chips of size 13.2 mm.

2. 85 per cent of above cost willbe attributed to the productionof 750 cum of stoneaggregates of 40 mm size andbalance 15 per cent will be forsmaller size aggregates andstone dust which comes outas a by product.

3. The integrated stone crusher

includes primary and secondarycrushing units.

Carriage of Material

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