Bilal Assignment

7/27/2019 Bilal Assignment

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ROUGH COST ESTIMATE OF BUILDING

EXAMPLE: Prepare Rough Cost Estimate of Building from given Line Plan. Cost

of Construction is Rs 900/Sqft. Cost for Water Supply, Sanitary, Electricity and Gas

Supply should include separately and Cost for Contingencies also is included.

SOLUTION:

01 Figure

02. Sides AB = CD = 30.25ft

Sides BC = AD = 22.25ft

Cost of Construction = Rs. 900/Sqft

03. Plinth Area of Building from given Drawing

Area = Length x Breadth

Area = 30.25ft x 22.25ft

Area = 637.0625 Sqft

04. Rate of Cost of Construction per Square Unit = Rs. 900/Sqft

Cost of Construction of Building = Total Plinth Area x Cost of Construction

Cost of Construction of Building = 673.0625 x 900

Cost of Construction of Building = Rs. 605754

05. A Water Supply Charges = 04% of Construction of Building

Water Supply Charges = 04/100 x 605754 = Rs.24230

05. B Sanitation Charges = 04% of Construction of Building

Sanitation Charges = 04/100 x 605754 = Rs.24230

05. C Electricity Charges = 08% of Construction of Building

Electricity Charges = 08/100 x 605754 = Rs.48460

05. D Gas Charges = 04% of Construction of BuildingGas Charges = 04/100 x 605754 = Rs.24230

Sum of 04 and 05 = Rs. 605754 + Rs. 121150 = 726904

Contingencies = 03% of Construction of Building

Contingencies = 03/100 x 726904

Contingencies = Rs. 21807

Total Cost of Construction = Rs. 748711

Date: 31-10-2012



EXAMPLE: Prepare Rough Cost Estimate of Building from given Figure on Plinth

Area. All Data are to be taken yourself.

SOLUTION:

01 Figure

02. Sides AB = CD = 33.00ft

Sides BC = AD = 22.25ft

Cost of Construction = Rs. 1000/Sqft

03. Plinth Area of Building from given Drawing

Area = Length x Breadth

Area = 33.00ft x 22.25ft

Area = 743.25 Sqft

04. Rate of Cost of Construction per Square Unit = Rs. 1000/SqftCost of Construction of Building = Total Plinth Area x Cost of Construction



05. A Water Supply Charges = 04% of Construction of Building

Water Supply Charges = 04/100 x 734250

Water Supply Charges = Rs. 29370

05. B Sanitation Charges = 04% of Construction of Building

Sanitation Charges = 04/100 x 734250

Sanitation Charges = Rs. 29370

05. C Electricity Charges = 08% of Construction of Building

Electricity Charges = 08/100 x 734250

Electricity Charges = Rs. 58740

05. D Gas Charges = 04% of Construction of Building

Gas Charges = 04/100 x 734250

Gas Charges = Rs. 29370

Date: 31-10-2012



EXAMPLE: Prepare Rough Cost Estimate of Building from given Line Plan. Cost

of Construction is Rs 4500/ m2. Cost for Water Supply, Sanitary, Electricity and Gas

Supply should include at recommended rates and 03% for Contingencies and 10%

Contractors cost should be included.

SOLUTION:

Plinth Area

Area A1 = Rectangular Portion 01Length = 12.2m

Width = 4.6m

Area A1 = 12.2 x 4.6

Area A1 = 56.12m2

Area A2 = Rectangular Portion 02Length = 8.9mWidth = 2.8m

Area A2 = 8.9 x 2.8

Area A2 = 24.92m2

Area A3 = Semi Circular Portion

Radius of Semi Circular Portion = 02 + 0.3 = 2.3m

Area with respect to Dia

π D2/04 = 3.142 x (4.6)2/04

= 3.142 x 21.16/04

= 66.48472/04= 16.62118m2

Area of Semi Circular Portion = 16.62118/02

Area of Semi Circular Portion = 8.3109 m2

OR

Area = π r 2/02

Area = 3.142 x (2.3)2 /02

Area = 3.142 x 5.29/02

Date: 03-11-2012



Area = 16.62118/02

Area = 8.3109 m2

Total Plinth Area = A1 + A2 + A3

Total Plinth Area = 56.12 + 24.92 + 8.3109

Total Plinth Area = 89.35 m2

Rate of Cost of Construction per Square Unit = Rs. 4500/ m2

Cost of Construction of Building = Total Plinth Area x Cost of Construction



Water Supply Charges = 04% of Construction of Building

Water Supply Charges = 04/100 x 402075

Water Supply Charges = Rs. 16083

Sanitation Charges = 04% of Construction of Building

Sanitation Charges = 04/100 x 402075

Sanitation Charges = Rs. 16083

Electricity Charges = 08% of Construction of BuildingElectricity Charges = 08/100 x 402075

Electricity Charges = Rs. 32166

Gas Charges = 04% of Construction of Building

Gas Charges = 04/100 x 402075

Gas Charges = Rs. 16083

Contingencies = 03% of Construction of Building

Contingencies = 03/100 x 402075


Total Cost = Rs. 494552

Cost of Contractor = 10% of Construction of BuildingCost of Contractor = 10/100 x 494552

Cost of Contractor = Rs. 49455

Total Cost (Including Cost of Contractor) = Rs. 544007

Total Length of Boundary Wall = 10.1 + 12.2 + 7.3

Total Length of Boundary Wall = 29.6m

Cost of Construction of Boundary Wall = Rs. 1500/Rm

Cost of Construction of Boundary Wall = 29.6 x 1500

Cost of Construction of Boundary Wall = Rs. 44400

Contingencies = 03% of Construction of Boundary WallContingencies = 03/100 x 44400


Cost of Contractor = 10% of Construction of Building

Cost of Contractor = 10/100 x 44400

Cost of Contractor = Rs. 4440

Grand Total = 50172 + 544007 = Rs. 594179



CHAPTER: 06 ANALYSIS OF RATES

Analysis of Rates for PCC (In F.P.S System)

PCC 01: 02: 04 = 100cft (Wet form)

Given Data

Dry Material required for 100cft = 154cft

Given Ratio = 01: 02: 04Sum of Ratio = 01+02+04 = 07

A. Cost of Material

01. Cement = 01/07 x 154 = 22cftOne Bag of Cement = 1.25cft

No of Bags = 22/1.25 = 17.6 Bags

Cost of One Bag of Cement = 400

Cost of 17.6 Bag of Cement = 400 x 17.6 = Rs. 7040

02. Sand = 02/07 x 154 = 44cftCost of 100cft of Sand = 2200 per 100cftCost of 44cft of Sand = 2200/100 x 44

Cost of 44cft of Sand = Rs. 968

03. Bajri = 04/07 x 154 = 88cft

Cost of 100cft of Bajri = 2000 per 100cft

Cost of 88cft of Bajri = 2000/100 x 88

Cost of 88cft of Bajri = Rs. 1760

Sum of A = 7040 + 968 + 1760 = Rs. 9768

B. Labourer Chargers

Mason = ½ No @ Rs. 800 per Day = Rs. 400

Labourer = 02 No @ Rs. 400 per Day = Rs. 800Water Man = ¼ No @ Rs. 400 per Day = Rs. 100

Sum of B = 400 +800 + 100 = Rs.1300

Sum of A & B = 9768 + 1300 = Rs. 11068

C. Contractor Profit

Contractor Profit = 10%Contractor Profit = 10/100 x 11068

Contractor Profit = Rs. 1107

Grand Total = 11068 + 1107 = Rs.12175

Grand Total = 12200 Approximately

Note: Transportation charges are included in Material Rates.

Date: 14-11-2012



PCC 01: 03: 06 = 100cft

Given Data

Wet Quantity = 100cftDry Material required for 100cft = 154cft

Given Ratio = 01: 03: 06

Sum of Ratio = 01+03+06 = 10

A. Cost of Material

01. Cement = 01/10 x 154 = 15.4cft

One Bag of Cement = 1.25cft

No of Bags = 15.4/1.25 = 12.3 BagsCost of One Bag of Cement = 400


02. Sand = 03/10 x 154 = 46.2cftCost of 100cft of Sand = 2200 per 100cft

Cost of 46.2cft of Sand = 2200/100 x 46.2Cost of 46.2cft of Sand = Rs. 1016

03. Bajri = 06/10 x 154 = 92.4cft

Cost of 100cft of Bajri = 2000 per 100cftCost of 92.4cft of Bajri = 2000/100 x 92.4

Cost of 92.4cft of Bajri = Rs. 1848

Sum of A = 4920 + 1016 + 1848 = Rs. 7284


Mason = ½ No @ Rs. 800 per Day = Rs. 400Labourer = 02 No @ Rs. 400 per Day = Rs. 800

Water Man = ¼ No @ Rs. 400 per Day = Rs. 100

Sum of B = 400 +800 + 100 = Rs.1300

Sum of A & B = 7284 + 1300 = Rs. 9084


Contractor Profit = 10%

Contractor Profit = 10/100 x 9084


Grand Total = 9084 + 908 = Rs.9992Grand Total = 10000 Approximately

Note: All Materials are available at a site.

Date: 21-11-2012



PCC 01: 04: 08 = 100cft

Given Data

Wet Quantity = 100cftDry Material required for 100cft = 154cft

Given Ratio = 01: 04: 08

Sum of Ratio = 01+04+08 = 13

A. Cost of Material

01. Cement = 01/13 x 154 = 11.84cft

One Bag of Cement = 1.25cft

No of Bags = 11.84/1.25 = 9.4 BagsCost of One Bag of Cement = 400


02. Sand = 04/13 x 154 = 47.38cftCost of 100cft of Sand = 2200 per 100cft

Cost of 47.38cft of Sand = 2200/100 x 47.38Cost of 47.38cft of Sand = Rs. 1642

03. Bajri = 08/13 x 154 = 94.7cft

Cost of 100cft of Bajri = 2000 per 100cftCost of 94.7cft of Bajri = 2000/100 x 94.7

Cost of 94.7cft of Bajri = Rs. 1894

Sum of A = 3788 + 1642 + 1894 = Rs. 6724


Mason = ½ No @ Rs. 800 per Day = Rs. 400Labourer = 02 No @ Rs. 400 per Day = Rs. 800

Water Man = ¼ No @ Rs. 400 per Day = Rs. 100

Sum of B = 400 +800 + 100 = Rs.1300

Sum of A & B = 6724 + 1300 = Rs. 8024



Contractor Profit = 10/100 x 8024


Grand Total = 8024 + 802 = Rs.8826Grand Total = 8850 Approximately




Analysis of Rates, Unit 100cft

Brick Work in Foundation Plinth & up to 5feet over Ground level / NSL with 1:6

Cement Mortar

A. Cost of Material

i) No of Bricks Required for 100cft = 1350 NOS

@ 5000/1000cft = 5000/1000 x 1350 = Rs.6750

ii) Quantity of CSM Required for 100cft = 25%

Quantity of CSM Required in Wet Form = 25cftQuantity of CSM Required in Dry Form = 154/100 x 25

= 38.5cft

CSM Ratio = 1:6

Sum of Ratio = 1+6 = 7

iii) Cement = 1/7 x 38.5 = 5.5cft No of Bags = 5.5/1.25 = 4.4 Bags@ 400/Bag = 400 x 4.4 = Rs.1760

iv) Sand = 6/7 x 38.5 = 33cft@ 2200/100cft = 2200/100 x 33 = Rs.726

Sum of A = 1760 + 6750 + 726 = Rs.9236

B. Labourer Charges

No of Mason = 1.5 NOS @ 800/Day = Rs.1200No of Labour = 2 NOS @ 400/Day = Rs.800

Water Man = 0.5 NOS @ 400/Day = Rs.200

Sum of B = Rs.2200

Sum of A & B = 9236 + 2200 = Rs.11436


Contractor Profit =10%

Contractor Profit = 1/10x11436Contractor Profit = Rs.1143

Grand Total = 11436 + 1143 = Rs.12579



Date: 28-11-2012



PLASTERING

Analysis of Rates ½ Inches Thick Cement Plaster Per 100sft with 1:6

Quantity of Material = Volume = Area x Thickness

Quantity of Material = Volume = 100 x 0.5/12 (in feets)

Quantity of Material = Volume = 100 x 0.042 = 4.2cft

Dry Volume of Mortar = 4.2 x 1.54 = 6.468cft

Ratio = 1:6


A. Cost of Material

i) Cement = 1/7 x 6.648 = 0.924cft No of Bags = 0.924/1.25 = 0.74 Bags

@ 400/Bag = 400 x 0.74 = Rs.296

ii) Sand = 6/7 x 6.468 = 5.544cft

@ 2200/100cft = 2200/100 x 5.544 = Rs.121.96

Sum of A = 296 + 122 = Rs.418


Mason = 0.5 NOS @ 800/Day = Rs.400

Labour = 01 NOS @ 400/Day = Rs.400

Water Man = ¼ NOS @ 400/Day = Rs.100Scaffolding Lumsum = Rs.100

Sum of B = Rs.1000

Sum of A & B = 418 + 1000 = Rs.1418



Contractor Profit = 1/10 x 1418 = Rs.142

Grand Total = 1418 + 142 = 1560


Note: All Materials are available at a site

Date: 05-12-2012



POINTING

Analysis of Rate of Deep Struck Pointing 100sft Area with 1:4 CSM

Quantity of Material required for 100sft = Quantity of 3/8 inch Plaster for 100sft

Quantity = 100 x 0.375/12 = 3.125cft

Dry Quantity = 3.125 x 1.5 = 4.687cft

Given Ratio = 1:4


A. Cost of Material

i) Cement = 1/5 x 4.687 = 0.937cft

No of Bags = 0.937/1.25 = 0.75 Bag

@ 400/Bag = 400 x 0.75 = Rs.300

ii) Sand = 4/5 x 4.687 = 3.75cft@ 2200/100cft = 2200/100 x 3.75 = Rs.82.5

Sum of A = 300 + 83 = Rs.383


Mason = 01/03 NOS @ 800/Day = Rs.266.66

Labour = 01/4 NOS @ 400/Day = Rs.100

Water Man = ¼ NOS @ 400/Day = Rs.100

Sum of B = Rs.467

Sum of A & B = 383 + 467 = Rs.850


Contractor Profit = 10%Contractor Profit = 1/10 x 850 = Rs.85

Grand Total = 850 + 50 = 900



Date: 12-12-2012



Analysis of Rate of Pointing 100sft Area with 1:4 CSM

Quantity of Material required for 100sft = Quantity of 1/4 inch Plaster for 100sft

Quantity = 100 x 0.25/12 = 2.08cft

Dry Quantity = 2.08 x 1.5 = 3.125.cft

Given Ratio = 1:4


A. Cost of Material

i) Cement = 1/5 x 3.125 = 0.625cft

No of Bags = 0.625/1.25 = 0.5 Bag

@ 400/Bag = 400 x 0.5 = Rs.200

ii) Sand = 4/5 x 3.125 = 2.5cft

@ 2200/100cft = 2200/100 x 2.5 = Rs.55

Sum of A = 200 + 55 = Rs.255


Mason = 01/03 NOS @ 800/Day = Rs.266.66

Labour = 01/4 NOS @ 400/Day = Rs.100

Water Man = ¼ NOS @ 400/Day = Rs.100

Sum of B = Rs.467

Sum of A & B = 255 + 467 = Rs.722


Contractor Profit = 10% = 1/10 x 722 = Rs.72

Grand Total = 722 + 72 = 794



WHITE WASHING

Analysis of Rate for 100cft White Washing

A. Cost of Material

Lime Stone = 3.5Kg @ Rs.12/Kg = Rs.42

Material / Rice = ¼ Kg @ Rs.80/Kg = Rs.20

Sum of A = 42 + 20 = Rs.62

B. Labourer Charges

White Washer = ¼ NOS @ 500/Day = Rs.125

Helper = 1/6 NOS @ 300/Day = Rs.50

Ladder Charges Lumsum = Rs.15Sum of B = Rs.190

Sum of A & B = 62 +190 = Rs.252

C. Contractor Profit = 10% = 1/10 x 252 = Rs.25

Grand Total = 252 + 25 = 277 = 300 Approximately



MATERIAL STATEMENT

Prepare Material Statement of the following

1) PCC = 1500cft = 1:2:4

2) Brick Work = 1000cft = 1:6 CSM

1) PCC 1:2:4 1500cft

Dry Material Required for 1500cft = 1500 x 1.54 = 2310cft

Ratio = 1: 2: 4

Sum of Ratio = 7

Cement = 1/7 x 2310 = 330cft, No of Bags = 330/1.25 = 264 Bags

Sand = 2/7 x 2310 = 660cft

Bajri = 4/7 x 2310 = 1320cft

2) Brick Work = 1000cft = 1:6 CSM

Brick Work = No of Bricks used in 1000cft = 1350/100 x 1000 =13500NOS

Quantity of Dry Cement Mortar Required = 35% = 35/100 x 1000 = 350cft

Ratio = 1:6Sum of Ratio = 7

Cement = 1/7 x 350 = 50cft, No of Bags = 50/1.25 = 40Bags

Sand = 6/7 x 350 = 300cft

S.No Name of Item of Work Quantity Cement Sand Bajri Bricks

01 PCC 1:2:4 1500cft 264 Bags 660cft 1320cft ---

02 Brick Work 1:6 CSM 1000cft 40 Bags 300cft --- 13500 NOS

DETAILED ESTIMATE OF A BUILDING

Prepare Detailed Estimate of a Straight Wall. The Length of Wall is 50ft, Height of Wall is 8ft and thickness of Wall is 9inches (0.75ft)

Foundation Plan

Date: 09-01-2013



ABSTRACT OF QUANTITIES (PWD Method)S.No Description of Item of Work NOS Measurements Quantities Remarks

L B H,D

1 Earth Work

Excavation of Foundation

1 52´ 2.75´ 2.5´ 357.5cft 50+1+1=

52

2 PCC 1:4:8 in Foundation 1 52´ 2.75´ 0.625´ 89.375cft3 Brick Work in Foundation Plinth

With 1:6 CSM

First Step:

Second Step:

1

1

51´

50´

1.75´

0.75´

1´

1.875´

89.375cft

+70.325cft

=159.562cft

4 2´´ Thick DPC 1:2;4 1 50´ 0.75´ 8´ 37.5cft

5 Brick Work in Super Structure

with 1:6 CSM

1 50´ 0.75´ 9´ 300cft

6 ½´´ Thick Plastering 1:6 CSM

(a) At sides

(b) At ends(c) At top

2

21

50´

---50´

---

0.75´0.75´

9´

9´---

900sft

+ 13.58sft+ 37.58sft

951sft

7 White Washing 3 Coats As Per Serial No 6 = 951sft

ABSTRACT OF COSTS.No Description of Item of Work Quantities Unit Unit Rate Cost

1 Earth Work


357.5cft 1000cft Rs.3000 Rs.1072

2 PCC 1:4:8 in Foundation 89.375cft 100cft Rs.8850 Rs.79093 Brick Work in Foundation Plinth

With 1:6 CSM

159.56cft 100cft Rs.12600 Rs.20104

4 2´´ Thick DPC 1:2;4 37.5sft 100cft Rs.2021 Rs.7575 Brick Work in Super Structure

with 1:6 CSM

300cft 100cft Rs.13500 Rs.40500

6 ½´´ Thick Plastering 1:6 CSM 951sft 100sft Rs.1600 Rs.152167 White Washing 3 Coats 951sft 100sft Rs.300 Rs.2853

Total Cost Rs.88500

DETAILED ESTIMATE OF F-TYPE WALL



ABSTRACT OF QUANTITIES

S.No Description of Item of Work NOS Measurements Quantities Remarks

Lm Bm H,D,Pm

1 Excavation of Foundation

Wall No 01:Wall No 02 :

Wall No 03 :

0101

01

105.8

4

0101

01

0.80.8

0.8

8.64m3

4.64m3

3.2m3

10+0.4+0.4=

10.8

16.48 m3

2 PCC 1:4:8 in FoundationWall No 01 :

Wall No 02 :

Wall No 03 :

01

01

01

10.8

5.8

4

01

01

01

0.18

0.18

0.18

1.944 m3

1.044 m3

0.72 m3

3.708 m3

3 Brick Work in Foundation Plinth

With 1:6 CSM

Wall No 01 : Step 01 :

Step 02 & Plinth

Wall No 02 : Step 01Step 02 & Plinth :Wall No 03 :Step 01

Step 02 & Plinth :

01

01

010101

01

10.5

10

5.85.84

4

0.7

0.2

0.70.20.7

0.2

0.32

0.8

0.320.80.32

0.8

2.352 m3

0.6 m3

1.299 m

3

0.348 m3

0.896 m3

0.264 m3

7.715 m3

4 05 Cm Thick DPC 1:2;4

Wall No 01 :

Wall No 02 :

Wall No 03 :

01

01

01

10

5.8

4

0.2

0.2

0.2

---

---

---

2 m2

1.16 m2

0.8 m2

3.96 m2

5 Brick Work in Super Structure with

1:6 CSM

Wall No 01 :

Wall No 02 :Wall No 03 :

01

0101

10

5.84

0.2

0.20.2

03

0303

6 m3

3.48 m3

2.4 m3

11.88 m3

6 2 Cm Thick Plastering 1:6 CSM

Wall No 01:

At sides

At top

Wall No 02 :

At sidesAt ends

At top

Wall No 03 :

At sides

At endsAt top

02

01

0201

01

02

0101

10

10

5.8---

5.8

4

---4

---

0.2

---0.2

0.2

---

0.20.2

3.55

---

3.553.55

---

3.55

3.55---

71 m2

02 m2

41.18 m2

0.71 m2

1.16 m2

28.4 m2

0.71 m2

0.8 m2

145.96 m2

7 White Washing 3 Coats As Per Serial No 6 = 145.96 m2

ABSTRACT OF COST

Date: 23-01-2013



S.No Description of Item of Work Quantities Unit Unit Rate Cost

1 Earth Work Excavation of Foundation

16.48 m3 01 m3 Rs.105 Rs.1744.24

2 PCC 1:4:8 in Foundation 3.708 m3 01 m3 Rs.3122 Rs.11613.37

3 Brick Work in Foundation

Plinth With 1:6 CSM

7.715 m3 01 m3 Rs.4445 Rs.3429.17

4 5cm Thick DPC 1:2;4 3.96 m2 01 m2 Rs.217.25 Rs.860.31

5 Brick Work in Super Structure

with 1:6 CSM

11.88 m3 01 m3 Rs.4762 Rs.56572.56

6 Thick Plastering 1:6 CSM 145.96 m2 01 m2 Rs.172 Rs.25105.12

7 2cmWhite Washing 3 Coats 145.96 m2 01 m2 Rs.32 Rs.4670.72

Total Cost Rs.134830

DETAILED ESTIMATE OF T-TYPE WALL

X-Section



ABSTACT OF QUANTITIES


L B H,D

1 Earth Work

Excavation of FoundationLong Wall :

Short Wall :

01

01

20´

17´

2.75

´

2.75´

03´

03´

165cft

140.25cft

305.25cft

2 PCC 1:4:8 in Foundation

Long Wall :

Short Wall :

01

01

20´

17´

2.75

´2.75

´

0.625´

0.625´

34.375cft

29.218cft

63.593cft

3 Brick Work in FoundationPlinth With 1:6 CSM

Long Wall : First Step:

Second Step:Third Step With Plinth

Short Wall : First Step:

Second Step:Third Step With Plinth

01

0101

01

0101

20´

20´20´

16´

15.5´

15´

1.75

´1.25

´

0.75´

1.75

´

1.25´

0.75

´

01´

0.83´1.54´

01´

0.83´1.54´

35cft

20.75cft23.1cft

28cft

16.08cft17.32cft

140.25cft

4 2´´ Thick DPC 1:2;4

Long Wall :

Short Wall :

01

01

20´

15´

0.75

´

0.75´

---

---

15sft

11.25sft

26.25sft

5 Brick Work in Super

Structure with 1:6 CSMLong Wall :

Short Wall :

01

01

20´

15´

0.75

´

0.75´

08´

08´

120cft

90cft

210cft

6 ½´´ Thick Plastering 1:6 CSM

Long Wall :

At sidesAt top

Short Wall:

At sidesAt ends

At top

0201

0202

01

20´20´

15´---

15´

---0.75

´

---

0.75

9.16´---

9.16´9.16´

---

364.45sft15sft

274.8sft13.7sft

11.25sft

Date: 30-01-2013



´

0.75´

681.198sft

7 White Washing 3 Coats As Per Serial No 6 = 681.198sft

ABSTRACT OF COST


1 Earth Work


305.25cft 1000cft Rs.3000 Rs.915.75

2 PCC 1:4:8 in Foundation 63.593cft 100cft Rs.8850 Rs.5627.98

3 Brick Work in Foundation

Plinth With 1:6 CSM

140.25cft 100cft Rs.12600 Rs.17671.5

4 2´´ Thick DPC 1:2;4 26.25sft 100cft Rs.2021 Rs.530.51

5 Brick Work in Super Structurewith 1:6 CSM

210cft 100cft Rs.13500 Rs.28350

6 ½´´ Thick Plastering 1:6 CSM 681.19sft 100sft Rs.1600 Rs.10894.04

7 White Washing 3 Coats 681.19sft 100sft Rs.300 Rs.2043.571

Total Cost Rs.66000

DETAILED ESTIMATE OF SEWER PIPE LINE

Work out the quantities of all item of work for laying 400ft sewer line having18inches inner diameter and 01inche thick RCC pipe including 3ft wide and 4ft

deep trench below ground level provide 6inch thick PCC (1:4:8) in the bed.

Calculations:

Length of sewer pipe line = 400ft

Width of trench = 3ftDepth of trench = 4ft

Thickness of bed concrete = 1:4:8 = 6inches = 0.5ft

Inner diameter of sewer pipe = 18inches = 1.3ft

Thickness of pipe = 1ft

Outer diameter of sewer pipe = 18+01+01 = 20inches = 1.66ftLength of each sewer pipe = 06ft

No of sewer pipes = 400/06 = 66.66 NOS = 67 NOS

Date: 27-02-2013





L B H,D

1 Excavation of Trench 01 400

´

03´ 04´ 4800cft ---

2 PCC 1:4:8 in Bed of Trench 01 400

´

03´ 0.5´ 600cft ---

3 No of Pipes 01 @ 06ft Long Pipe400/06

67 NOS ---

4 Earth Filling of RemainingArea of Trench

(a) Area covered by Pipe

Line(b) Total Area Covered by

Concrete of Pipe Line

Now Earth Filling

01

01

π d2/4 x 400

=3.14 x (66)2/4 x 400

865.86 + 600

4800 – 1465.86

865.860cft

1465.86cft

3334.14cft

---

---

---

Prepare detailed estimate of a 200 meters long sewer pipe line, the length of a pipe is

2meters having 22centimeter internal dia and 2.5centimeter thickness, the slope of a

sewer pipe line is 1:300.

Calculations:

Length of Sewer Line = 200 metersLength of Sewer Pipe = 2 meters

Internal Dia of Pipe = 2.5 cm

Thickness of Pipe = 22+2.5+2.5 = 27cm = 0.27 meters Number of Pipes Required = 200/2 = 100 NOS

Number of Joints in 200 meters Long Sewer Pipe Line = 200 – 1/2 = 99 NOS

Thickness of PCC 1:4:8 = 30 cm = 0.3 metersDepth of Trench of Initial Point = 1.8 meters

Slope of Sewer Line = 1:300

Extra Depth of End Point due to Slope = 2/3 = 0.66 meter Total Depth at the End = 1.8 + 0.66 = 2.46 meters

Date: 06-03-2013



Mean Depth of Trench = 1.8+2.46/2 = 2.13 meters



L m B m H,D m

1 Excavation of Trench 01 200 01 2.13 4800 m3 ---

2 PCC 1:4:8 in Bed of Trench 01 200 01 0.3 600 m3 ---

3 Collection Of Pipes(2m Long) 2/200 = 100 100NOS ---

4 Number Of Joints Provided InSewer Pipe Line

200/2 – 1 = 9999 NOS

5 Earth Filling

(a) Volume Of Sewer Pipe Line

So, Earth Filling

Volume Of Trench=Volume

Of PCC + Volume Of S.line

Area Of Sewer x Length Of L

π d2/4 x 200

=3.14 x (0.27)2/4 200=11.45 m3

426 – 60 – 11.45

11.45 m3

354.44 m3

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ABSTRACT OF COST


1 Earth Work In Cutting for

Trench

426 m3 100 m3 Rs.15000 Rs.915.75

2 PCC 1:4:8 In Bed Of Trench 60 m3 Per m3 Rs.3500 Rs.5627.98

3 Provision Of sewer Pipe

22cm Internal Dia

100 NOS Per NO Rs.3500 Rs.17671.5

4 Jointing & Testing 99 NOS Per Joint Rs.300 Rs.530.51

5 Earth Filling 354.5 m3 100 m3 Rs.10000 Rs.28350

Total Cost Rs.66000

Documents

Bilal Assignment