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INDIAN INSTITUTE OF TECHNOLOGY
MADRAS
DEPARTMENT OF CIVIL ENGINEERING
CE5020: Construction Planning and Control
TASK-9
Report Writing
Submitted By:
SOURABH KUMAR SINGH (CE21M126)
LAL ANKIT NATH SHAHDEO (CE21M118)
CTaM’21
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Contents
Abstract................................................................................................................3
Introduction.........................................................................................................4
Construction Materials.......................................................................................6
Analysis of project...............................................................................................9
Work Breakdown System of the project .......................................................9
Project Scheduling .........................................................................................10
Bill of Quantities ............................................................................................12
Costing and Budgeting ..................................................................................13
Time-Cost Trade off ......................................................................................17
Labour Resources ..........................................................................................18
Earned Value Analysis ..................................................................................19
Conclusion..........................................................................................................20
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Abstract
This project is a model sketch of various aspects of project planning and monitoring of a
house to be built under Prime Minister’s Awaas Yojana. PMAY was launched in 2015 with
an aim to provide housing for all by 2022. This scheme provides a house of 30 sqm carpet
area to an economically weaker section (EWS) household. Houses are supported with basic
civil amenities.
This report covers the planning, scheduling, and monitoring of progress in hypothetical cases
of a single EWS house.
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Introduction
Project plan:
The project consists of planning all the
stages of construction of 324 sq. ft house
for the families affected by tsunami in
Tamil Nādu. The house is single storey
and has 1 bedroom, 1 hall, 1 kitchen and
open verandah space.
Purpose of the project:
The project is about planning the
different phases of construction of
Residential Home Construction. This
includes preparing of WBS, BOQ, Gantt
chart, Network diagram, Cost analysis,
budgeting, time cost trade off analysis,
resource planning and earned value analysis.
Project planning-scheduling-execution:
The planning includes, listing all the activities and preparing the work breakdown structure
for all the construction activities and non-construction activities and dividing them in several
packages. After that, AON network diagram is prepared and project duration, float and
critical path is calculated using forward and backward pass. A detailed Gantt chart is
prepared to follow for all the phases of construction. After calculating the time required for
the project, a detailed costing and budgeting is done for every work packages. Time-cost
trade off analysis is done to check the effect on budget cost on crashing several activities. To
manage the resources in the site, resource histogram is prepared for all the human resources.
And, finally Earned Value analysis is done to check the schedule performance and cost
performance for 25%, 50% and 75% of project duration.
Stakeholders:
This is the project to give permanent households for people living in tsunami affected areas.
So, the major stakeholders include:
1. SEVAI(Client)
2. Contractor
3. Sub-contractors
4. Planner
5. Architects
6. Engineers
7. Government authorities
8. Workers and Suppliers
9. Local residents
10. End Users (People affected by tsunami)
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Risk and contingencies:
Several points are discussed before the project approval for minimizing the risks and timely
completion of the project:
1. The risk of obtaining planning permission or other statutory approvals: This might
be mitigated by early consultation with statutory authorities prior to design, or by
employing ex-statutory authority employees, or consultants familiar with the statutory
authority.
2. Non-delivery of materials: An alternative design might be prepared, or bulk or
specific items could be pre-ordered before contractors are appointed
3. Lack of available work force. This could be tackled by the provision of
a site labor camp or by overseas recruitment.
4. Illness: This could be mitigated by insurance cover for key personnel.
5. Failure of power or water supply: This might be mitigated by the duplication
of supply, uninterrupted power supplies or the provision of standby generators.
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Construction Materials
Common construction materials are:
1. Steel – TMT rolled bars – 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm dia.
2. Concrete – PCC and RCC – M5, M10, M15, M20, M25, M30 etc.
3. Shuttering Ply Boards – 12 mm thick, 1.22 m x 2.44 m
4. Brick – Non modular brick – 230 mm x 110 mm x 70 mm
Other materials:
1. Bamboo
2. Binding wire
3. Shuttering oil
4. Hessian Cloth
5. Polythene sheet
6. Construction Water
7. Lime powder
8. Glass
9. Paint
10. Nails
11. Water hose pipe
Price of some common construction materials:
Item UOM Price
Rebar MT 55000.00
Cement Kg 8.00
Sand Cft 30.00
Coarse Agg. Cft 30.00
Shutter Ply Sqm 400.00
Brick Nos 6.00
Bamboo Nos 95.00
Binding wire kg 50.00
Shuttering oil L 70.00
Nails kg 45.00
Paint L 50.00
Lime powder kg 20.00
Hessian cloth Rmt 20.00
Polythene sheet kg 110.00
Water hose pipe kg 145.00
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Price Escalation: Escalation is the change in cost or price of specific goods or services in a
given economy over a period.
For any project, budget for materials shall be prepared by considering the price during
procurement in future. For estimating escalation, trend in price increase is studied and
extrapolated.
Month
Price of Hot Rolled
Coil TMT
Sep-20 39500
Oct-20 42000
Nov-20 44250
Dec-20 47000
Jan-21 54500
Feb-21 52000
Mar-21 52000
Apr-21 56600
May-21 61500
Jun-21 64000
Jul-21 62600
0
10000
20000
30000
40000
50000
60000
70000
Aug-20 Sep-20 Nov-20 Jan-21 Feb-21 Apr-21 Jun-21 Jul-21
COST
IN
RS.
MONTH
Hot Rolled Coil
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Strength of construction materials:
Material Grade Strength Remark
Cement M33 33 N/mm2 Compressive strength
M43 43 N/mm2 Compressive strength
M53 43 N/mm2 Compressive strength
Concrete M5 5N/mm2 Compressive strength
M7.5 7.5N/mm2 Compressive strength
M10 10N/mm2 Compressive strength
M15 15N/mm2 Compressive strength
M20 20N/mm2 Compressive strength
M25 25N/mm2 Compressive strength
M30 30N/mm2 Compressive strength
Steel TMT FE250 250N/mm2 Tensile strength
FE415 415N/mm2 Tensile strength
FE500 500N/mm2 Tensile strength
Shuttering board Along the grain 32.5 N/mm2 Tensile strength
Across the grain 22.5 N/mm2 Tensile strength
Sum of both 60.0 N/mm2 Tensile strength
Brick First class 105 kg/cm2 Compressive strength
Second class 70 kg/cm2 Compressive strength
third class 35 kg/cm2 Compressive strength
Fly ash 90 kg/cm2 Compressive strength
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Analysis of project
Work Breakdown System of the project
The project has been divided into two parts i.e., Planning phase and Construction phase.
Planning phase is comprised of Site survey, Field tests, Design and Approvals.
Construction phase is divided in four parts – Structure, Masonry, Electrical and Plumbing,
and Finishing.
Figure – WBS of EWS housing project
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Project Scheduling
Project scheduling is done by two methods:
• AON diagram:
▪ AON diagram is prepared for the project considering duration
calculated of each activity and appropriate predecessor and
successor of each activity.
▪ Backward and forward pass method is used to calculate the total
duration for the completion of the project and float available for
each activity.
▪ No of work packages in the pre-construction phase: 1
▪ No of work packages in the construction phase: 4
▪ Total no of work packages: 8
▪ No of activities in the pre-construction phase: 4
▪ No of activities in the construction phase: 40
▪ Total no of activities: 44
▪ Duration of pre-construction phase (days): 33 days
▪ Duration of construction phase (days): 96 days
▪ Total duration (days): 129 days
▪ Number of non-critical activities: 7
▪ No of critical paths: 2
• Gantt Chart:
▪ Gantt chart for the project is prepared to schedule each activity over the calendar
to show the interrelation between the activities and to track the progress of the
construction.
33 days
96 days
Total Duration= 129
days
Pre construction phase Contruction phase
4
40
Total Activities
No of activities in the pre-construction phase:
No of activities in the construction phase
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Bill of Quantities
Activity UOM BOQ
Foundation Trenching Cum 11.41
Foundation PCC Cum 0.50
Foundation Rebar MT 0.32
Foundation Shutter Sqm 13.68
Foundation Concrete Cum 1.83
Foundation Deshutter Sqm 13.68
Foundation Backfilling Cum 9.09
Plinth Rebar MT 0.24
Plinth Shutter Sqm 21.00
Plinth Concrete Cum 2.14
Plinth Deshutter Sqm 21.00
Ground Floor PCC Cum 6.02
Column Rebar MT 0.23
Column Shutter Sqm 33.67
Column Concrete Cum 1.94
Column Deshutter Sqm 33.67
Roof Slab Staging Cum 91.20
Roof Slab Shutter Sqm 33.33
Roof Slab Rebar MT 0.58
Roof Slab Concrete Cum 4.49
Roof Slab Destaging Cum 91.20
Staircase Staging Cum 7.97
Staircase Shutter Sqm 5.92
Staircase Rebar MT 0.08
Staircase Concrete Cum 0.59
Staircase Destaging Cum 7.97
Masonry Cum 20.37
Wiring LS 1
Plumbing fixtures LS 1
Plaster Sqm 224.73
Floor Finish Sqm 30.10
Door & window fixing Nos 11
Painting Sqm 291.45
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Costing and Budgeting
Direct Costs of the project: Planning and Construction costs
Project Phase Planning
Work Package Site Survey Field test Design Approvals
Labour cost ₹ - ₹ - ₹ - ₹ -
Material cost ₹ - ₹ - ₹ - ₹ -
Sub-contracted ₹ - ₹ 20,000.00 ₹ - ₹ -
Cost of Package ₹ - ₹ 20,000.00 ₹ - ₹ -
Project Phase Construction
Work Package Structure Masonry Electrical & Plumbing Finishing
Labour cost ₹ 1,25,300.00 ₹ 35,200.00 ₹ - ₹ 59,400.00
Material cost ₹ 1,57,612.16 ₹ 7,374.53 ₹ - ₹ 21,329.49
Sub-contracted ₹ - ₹ - ₹ 35,000.00 ₹ 15,000.00
Cost of Package ₹ 2,82,912.16 ₹ 42,574.53 ₹ 35,000.00 ₹ 95,729.49
Total Direct Cost = ₹ 4,76,216.18
Indirect cost of project:
Item Amount
Staff Salaries ₹ 1,29,000.00
Site office setup ₹ 20,000.00
Staff Transportation allowance ₹ 4,300.00
Site office electricity ₹ 316.67
Site office water supply ₹ 158.33
Snacks ₹ 9,000.00
Documentation ₹ 1,290.00
Total ₹ 1,64,065.00
Total Direct Cost = ₹ 1,64,065.00
Total Budget = ₹ 6,40,281.18
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4%
60%
9%
7%
20%
Direct Cost
Site Survey Field test Design
Approvals Structure Masonry
Electrical & Plumbing Finishing
79%
12%
3%
5%
1%
Indirect Cost
Staff Salaries
Site office setup
Staff Transportation
allowance
Site office electricity
Site office water
supply
Snacks
Documetation
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74%
26%
Total Budget
Direct Cost Indirect Cost
46%
39%
15%
Component of Direct Cost
Labour cost Material cost Sub-contracted
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Material Costing:
Material UOM Quantity Rate Amount
Shutter Ply Sqm 21.52 400.00 8608.31
Rebar MT 1.45 55000.00 79823.47
Cement Kg 7053.11 8.00 56424.88
Sand Cft 451.43 30.00 13542.81
Coarse Agg. Cft 540.07 30.00 16202.18
Water Lt 2141.82 0.00 0.00
Bricks Nos 1000.00 6.00 6000.00
Paint Lt 58.29 50.00 2914.53
Rope Rmt 30 20 600
Lime powder Kg 20 10 200
Measuring Chain LS 1 2000 2000
Total cost of materials ₹ 1,86,316.18
5%
43%
30%
7%
9%
0%
3%
2%
0% 0%
1%
Material Cost
Shutter Ply
Rebar
Cement
Sand
Coarse Agg.
Water
Bricks
Paint
Rope
Lime powder
Measuring Chain
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Time-Cost Trade off
Original duration of project = 129 days
Crashed duration of project = 87 days
Due to crashing direct cost has increased by 23% and indirect cost has decreased by 37%.
Overall effect on budget is an increase of 14%.
Original Budget Crashed Budget % Change
Direct Cost ₹ 4,76,216.18 ₹ 6,22,109.18 23%
Indirect Cost ₹ 1,64,065.00 ₹ 1,20,115.00 -37%
Total ₹ 6,40,281.18 ₹ 7,42,224.18 14%
₹4,76,216.18
₹1,64,065.00
₹6,40,281.18
₹6,22,109.18
₹1,20,115.00
₹7,42,224.18
₹-
₹1,00,000.00
₹2,00,000.00
₹3,00,000.00
₹4,00,000.00
₹5,00,000.00
₹6,00,000.00
₹7,00,000.00
₹8,00,000.00
Direct Cost Indirect Cost Total
Original vs Crashed Budget
Original Budget Crashed Budget
74%
26%
Original Budget
Direct Cost
Indirect Cost
84%
16%
Crashed Budget
Direct Cost
Indirect Cost
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Labour Resources
All the human resources required for the completion of all the activities are calculated using
appropriate methods and is listed below.
Resource histogram is also prepared for all the human resources required for the project.
1 44 28 16 75 76 54 6
Mate Mason Carpenter Fitter Mazdoor Helper Bhisti Painter
Surveying & Layout 4
Trenching 1 6
PCC 1 1 1
Rebar 3 3
Shutter 3 3
Concrete 1 4 1
Deshutter 2
Curing
Backfilling 2
Rebar 3 3
Shutter 6 6
Concrete 1 5 2
Deshutter 2
Curing
PCC 1 1 1
Curing
Rebar 3 3
Shutter 8 8
Concrete 1 4 2
Deshutter 3
Curing
Staging 6
Shutter 9 9
Rebar 6 6
Concrete 1 10 3
Curing
Destaging 9
Staging 2
Shutter 2 2
Rebar 1 1
Concrete 1 1 1
Curing
Destaging 2
Masonry 16 16 16
Wiring
Plumbing fixtures
Plaster 18 24 24
Floor Finish 3 3 3
Door & window fixing
Painting 6
Subcontracted
Total Mandays
Subcontracted
Subcontracted
Construction Activities
Column
Roof Slab
Staircase
Activity
Foundation
Plinth
Ground Floor
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Earned Value Analysis
Earned Value Analysis for the project is done for 3 situations,
1. For 25% of the project duration (i.e., 34 days)
2. For 50% of the project duration (i.e., 65 days)
3. For 75% of the project duration (i.e., 98 days)
The plot between SPI and CPI shows that the project is Behind Schedule and Over Budget.
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Conclusion
The Planning. Scheduling and Estimation of a residential house project using MS-excel
software has been done along with the estimation of various quantities of materials and
labour required for all the phases of the project has also been calculated. The human
resources required are properly planned for all the activities. The total budget was properly
estimated and it come around 6.4 lakhs.