1. Estimation And Quantity Surveying
Presented ByAWANISH SHUKLA
Roll No 271303
Branch- ACM
Section- IV
NATIONAL INSTITUTE OF CONSTRUCTION
MANAGEMENT AND RESEARCH
3. Brief Specification for Dado
Provide dado on 12 mm thick rough cement plaster (1:3)
base and jointed with alkali resisted cement as per IS: 4457
completed as per the direction of Engineer-In-Charge.
4. Detailed Specification for Dado
1. Materials
2. Preparation of surface & laying
3. Mortar and bedding
4. Fixing tiles for dado
5. Cleaning
6. Pointing and finishing
7. Mode of measurement
5. MATERIALS
White Glazed Tiles : The tiles shall be of approved and shall
generally conform to IS : 777.
They shall be flat and true to shape and free from cracks,
blisters, welts, crawling, crazing spots, chipped edges,
corners or other imperfections detracting from their
appearance.
The tiles shall be of square or rectangular of nominal sizes
such as 300x200mm, 150x150mm, 100x100mm.
Samples of tiles shall be got approved by the Engineer-incharge before use on the work.
Top surface of tile shall be glossy or matt as specified.
6. PREPARATION OF SURFACE & LAYING
Sub grade concrete or RCC slab or side brick wall/ or
plastered surfaces on which tiles are to be laid shall be
cleaned, wetted and mopped.
The bedding/backing for the tile shall be of C.M. 1.3 or as
specified and shall be applied and allowed to harden.
The mortar shall be roughened with wire brushes or by
scratching diagonal lines 1.5mm. deep at 7.5mm.
dado shall be truly horizontal and joints truly vertical.
After the tiles have been laid, surplus cement grout shall be
cleaned off.
7. MORTAR AND BEDDING
Cement mortar shall conform to the specification for
materials, preparations etc. as specified under cement
mortar.
The amount of water added while preparing mortar shall be
the minimum necessary to give sufficient plasticity for
laying.
Care shall be taken in preparation of the mortar to ensure
that there are no hard lumps that would interfere with even
bedding of the tiles.
The mortar of specified proportion and thickness shall then
be even and smoothly spread over the base by use of screed
battens to proper level or slope.
8. FIXING TILES FOR DADO
The dado work, shall be done only after fixing the tiles/slabs
on the floor.
The approved white glazed tiles before laying shall be soaked
in water for at least 2 hours.
Tiles shall be fixed when the cushioning mortar is still plastic
and before it gets very stiff.
The back of the tile shall be covered with this layer of cement
mortar 1:2 using fine sand (table III, zone IV, I.S. 383-1963)
and the edge of the tile smeared with neat white cement
slurry.
The tile shall then be pressed in the mortar and gently tapped
against the wall with a wooden mallet.
9. The fixing shall be done from bottom of wall upwards without any
hollows in the bed of joints.
Each tile shall be as close as possible to one adjoining.
The tiles shall be jointed with white cement slurry.
Any thickness difference in the thickness of the tiles shall be
arranged out in cushioning mortar so that all tiles faces are in one
vertical plane.
The top of the dado shall be touched up neatly with the rest of the
plaster above.
After fixing the dado/skirting etc. they shall be kept continuously
wet for 7 days.
If doors, windows or other openings are located within the dado
area, the corners, sills, jambs etc. shall be provided with true right
angles without any specials.
10. CLEANING
After the tiles have been laid in a room or the days fixing
work is completed, the surplus cement grout that may have
come out of the joints shall be cleaned off before it sets.
After the complete curing, the dado or skirting over shall be
washed thoroughly clean.
In the case of flooring, once the floor has set, the floor shall
be carefully washed clean and dried.
When dry, the floor shall be covered with oil free dry saw
dust.
It shall be removed only after completion of the construction
work and just before the floor is used.
11. MODE OF MEASUREMENT
Dado/flooring/skirting shall be measured in sqm.
correct to two places of decimal.
Length and breadth shall be measured correct to 1 cm.
Between the exposed surfaces of skirting or dado. No
deductions shall be made nor extra paid for any opening
of area up to 0.1 sqm.
The rate shall include all the cost of labour and materials
involved.
12. Rate Analysis for Dado
Rate Analysis for 10 sq-m
The quantity of white-glazed tile is worked out by assuming 1 mm on
either side for thickness in joint & tolerance in size of tiles. Thus, no of
white-gazed tiles
= 10/(0.152X0.152)
= ~ 432 tiles
13. Particulars
Quantity
Or
Numbers
Rate
Per
Amounts
White Gazed Tiles
432 Nos
Rs. 8.00
no
Rs. 3456.00
Wastage o white
gazed tiles @ 5%
Rs. 172.00
C.M. (1:3) for
rough plaster,
bedding & wastage
0.18 cu m
Rs. 2510.00
Cu m
Rs. 451.80
White Cement
Sundries
0.25 bags
Rs. 950.00
bag
Rs. 237.50
Rs. 6.90
Material Cost =
Rs. 4325.00
Sq m
Rs. 1000.00
Labour:
Labour for fixing,
making rough coat
of plaster, filling
joints etc
10.00 sq m
Rs. 100.00
14. Labour Cost
Add Material Cost
=
=
Rs. 1000.00
Rs. 4325.00
------------------Total
=
Rs 5325.00
10% Contractors’ Profit =
Rs. 532.50
1.5% Water and electric
consumption charges
=
Rate per 10 sq m
Rate per sq m
Say
Rs. 79.88
-------------------=
Rs. 5937.38
=
Rs. 593.74
=
Rs. 595.00
15. Approximate Estimate of FLY OVER
Examples:
National ProjectAt Mohan Nagar Junction in Ghaziabad, India.
At Kampthee, Nagpur on NH-7, India
At Sirmaur Chauraha Rewa, M.P., India
International ProjectAt Junction of Che Kung Road and Hung Mui Road, Honkong.
16. At Mohan Nagar Junction in Ghaziabad, India
Name of Project
Detail of Client
Details of Contractor
:
:
:
Scope of Work
:
Cost of Work
:
Duration of Work
:
Details, Project Progress:
Resources Used
:
New Technology
control
Per meter cost
Construction of Fly Over
National Capital Region Planning Board
Asian Development Bank and
Wilbur Smith Associates
Fly Over with 2 lanes on existing road for
700 meters
Rs. 539,160,413.00
2 Years (work started on July 2008)
Completed on July 2010
Manpower, Equipments, Machineries
:
Paver Finisher Hydrostatic with sensor
:
Rs. 7,70,229
17. At Kampthee, Nagpur on NH-7, India
Name of Project
Detail of Client
Details of Contractor
Scope of Work
:
:
:
:
Cost of Work
:
Duration of Work
:
Details, Project Progress:
Resources Used
:
New Technology
:
Per meter cost
:
Construction of Fly Over
NHAI
Oriental Construction Company Pvt. Ltd
Backbone Enterprises
Fly Over on 850 Meter 2 lane road
Rs. 721,122,350.00
2 Years (work started on July 2010)
Completed on July 2012
Manpower, Equipments, Machineries
Fly Ash was used, Pile foundation was done
Rs. 8,48,379.00
18. At Sirmaur Chauraha Rewa, M.P., India
Name of Project
Detail of Client
:
:
Details of Contractor :
Scope of Work
:
lane
Cost of Work
:
Duration of Work
:
Project Progress
:
Resources Used
:
Per meter cost
Construction of Flyover Bridge at
Sirmour Chouraha Rewa on VaranasiNagpur Road, Rewa, MP
Public Works Department M.P.
Abhay Mishra Comstruction company
Fly Over with 750 meters long two
Rs. 25 Crors
2 Years (Started on 2012)
Under Process
Manpower, Equipments, Machineries
:
Rs. 3,33,333
19. At Junction of Che Kung Road & Hung Mui Road, Honkong.
Name of Project
Detail of Client
:
:
Details of Contractor :
Scope of Work
Cost of Work
:
:
Duration of Work
:
Details, Project Progress:
Resources Used
:
Per meter cost
:
Construction of Fly Over
Government of the Hong Kong
Special Administrative Region
HKSAR
Construction of approximate 600
metres long dual 2-lane
Rs. 537,140,479.00
December 2007
Completion January 2013
Manpower, Equipments, Machineries
RS. 8,98,600
