Rate Analysis of Brickwork – Brick Work & Calculate Quantity and Cost
Rate Analysis of Brick work
Rateanalysis for Brick work requires
estimation of materials for Brick work, i.e. quantity of cement, sand and bricks
required for 1m3 for various proportions, i.e., Brick work 1:3,
1:4, 1:6, 1:8 etc. So, let us first
calculate number of brick, quantity of cement and sand required for 1m3 Brick
work.
estimation of materials for Brick work, i.e. quantity of cement, sand and bricks
required for 1m3 for various proportions, i.e., Brick work 1:3,
1:4, 1:6, 1:8 etc. So, let us first
calculate number of brick, quantity of cement and sand required for 1m3 Brick
work.
Download link of sheet to calculate is given below
Most knowing point for rate analysis
When
you start doing rate analysis we must remember these points:
you start doing rate analysis we must remember these points:
–
Item for rate analysis (Name of the Item i.e.
PCC, RCC, Brickwork etc. )
Item for rate analysis (Name of the Item i.e.
PCC, RCC, Brickwork etc. )
–
Specification (type of material, quality of
material etc.)
Specification (type of material, quality of
material etc.)
–
Unit (per Sqm, Cum, Rm etc.)
Unit (per Sqm, Cum, Rm etc.)
–
Labour
Labour
–
Material
Material
–
Overhead (Profit for contractor)
Overhead (Profit for contractor)
Labour
for brickwork:
for brickwork:
1) Skilled
Labour
Labour
2) Unskilled
Labour
Labour
Material
for brickwork:
for brickwork:
1) Cement
2) Sand
3) Bricks
Now calculating material
Suppose we have to no of brick and the volume of material
of the wall having a volume of the
1-meter cube, the size of brick is going to use is 230mm ×220 mm ×55 mm and
mortar is 8 mm thick with
the ratio of 1: 4. So we have to calculate these items which are given
below,
of the wall having a volume of the
1-meter cube, the size of brick is going to use is 230mm ×220 mm ×55 mm and
mortar is 8 mm thick with
the ratio of 1: 4. So we have to calculate these items which are given
below,
Calculate:
1.) The number of bricks
2.) The Volume of cement
3.) The Volume of sand
Known Data :
Volume (L x W x H) = 1
meter cube.
meter cube.
Mortar thickness = 10 mm.
Mortar Ratio = 1:4
Size of brick = 230 mm ×110 mm ×55
mm. or (0.23 m x 0.11 m x 0.055 m).
mm. or (0.23 m x 0.11 m x 0.055 m).
Size of brick with mortar = 240
mm × 120 mm× 65 mm. or (0.24 m x 0.12 m x 0.065
m).
mm × 120 mm× 65 mm. or (0.24 m x 0.12 m x 0.065
m).
This
calculation this in 2 steps, to make our calculation easier,
calculation this in 2 steps, to make our calculation easier,
1. STEP: (BRICKS CALCULATION)
1.
Volume
of 1 brick = (0.23 m x 0.11 m x 0.055 m) = 0.00139 meter cube.
Volume
of 1 brick = (0.23 m x 0.11 m x 0.055 m) = 0.00139 meter cube.
2.
Volume
of 1 brick with mortar = (0.24 m x 0.12 m x 0.065 m) = 0.001872 meter cube.
Volume
of 1 brick with mortar = (0.24 m x 0.12 m x 0.065 m) = 0.001872 meter cube.
3.
No
of bricks in 1 cum = volume/volume of bricks with mortar = 1/0.001872 = 534.18 Bricks.
No
of bricks in 1 cum = volume/volume of bricks with mortar = 1/0.001872 = 534.18 Bricks.
2. STEP: (MORTAR CALCULATION)
1.
Volume
covered by 534 bricks in 1 Cum Volume = (Bricks
number x Volume of 1 brick).
Volume
covered by 534 bricks in 1 Cum Volume = (Bricks
number x Volume of 1 brick).
2.
Bricks
Volume = 534 x 0.00139 = 0.743
meter cube.
Bricks
Volume = 534 x 0.00139 = 0.743
meter cube.
3.
Volume
= (Total volume – volume of bricks).
Volume
= (Total volume – volume of bricks).
4.
Mortar
volume = 1 – 0.743 = 0.257 meter cube.
(wet volume).
Mortar
volume = 1 – 0.743 = 0.257 meter cube.
(wet volume).
5.
Dry
Volume = 0.19 x 1.33 = 0.342
meter cube (dry Volume). Where (1.33 is a constant)
Dry
Volume = 0.19 x 1.33 = 0.342
meter cube (dry Volume). Where (1.33 is a constant)
CEMENT:
Cement: = dry volume /Sum of Ratio.
= 0.342/5
=0.0684 cum
In Bag, volume of one
bag cement is 0.0347 cum
bag cement is 0.0347 cum
= 0.0684 /0.0347 <1 bag = 50 kg>
= 1.97 bags= 2 bags
SAND:
Sand: = voume of cement X sand ratio
= (0.0684 x 4 )
= 0.2736 Cum
Summary :
BRICKS = 534 Nos
CEMENT = 1.97 bags.
SAND = 0.2736 Cum.
Note: These ratios may
change by changing the dimension of the mortar thickness or size of the bricks
as well as the mortar ratios 1: 4, 1: 6 etc.
change by changing the dimension of the mortar thickness or size of the bricks
as well as the mortar ratios 1: 4, 1: 6 etc.
Estimation of Labour and Tools for cement
mortar:
For
1m3 of Brickwork with Ratio 1:4, unskilled labour is required for 1.76
man-days for mixing of mortar, for carrying of cement, sand and water. Skilled
labour is required for 1.20 man-day for placing, checking, of concrete on
required line level for 1cum.
1m3 of Brickwork with Ratio 1:4, unskilled labour is required for 1.76
man-days for mixing of mortar, for carrying of cement, sand and water. Skilled
labour is required for 1.20 man-day for placing, checking, of concrete on
required line level for 1cum.
Rate Analysis of Brickwork for Ratio of
mortar 1:4 :
Rate analysis of Brickwork requires
the rate of cement, sand multiplied with their respective quantity. Cost of
labour and tools and tackles for the brickwork is also calculated. Cost of cement, sand, labour and tools depend on local availability
and local rates.
the rate of cement, sand multiplied with their respective quantity. Cost of
labour and tools and tackles for the brickwork is also calculated. Cost of cement, sand, labour and tools depend on local availability
and local rates.
When,
quantity of cement, sand, aggregate, labour and tools are multiplied by its
rates, and a contractors profit of 10-20% is assumed, the total sum of the
amount is taken as the cost of 1m3 of brick, which is shown below
quantity of cement, sand, aggregate, labour and tools are multiplied by its
rates, and a contractors profit of 10-20% is assumed, the total sum of the
amount is taken as the cost of 1m3 of brick, which is shown below
For full view of table enable desktop site in your browser
|
Brick masonry work in 1:4
|
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Chimney made brick work in cement
mortar 1:4 in foundation upto plinth including wetting of bricks, curing of work, perfect line & level as specified in the specification & drawings all complete. |
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Unit : Per Cum.
|
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|
Source
|
Type
|
Quantity
|
Unit
|
Rate
|
Amount
(Rs.) |
Remarks
|
|
Labour
|
Skilled
|
1.20
|
md
|
750.00
|
900.00
|
|
|
Unskilled
|
1.76
|
md
|
550.00
|
968.00
|
||
|
Material
|
Cement
|
98.500
|
kgs
|
16.50
|
1625.25
|
|
|
Brick
|
534.00
|
No.
|
17.50
|
9345.00
|
||
|
Sand
|
0.274
|
Cum.
|
1300.00
|
355.68
|
||
|
Sub-Total
|
13193.93
|
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|
Add, contractor’s overhead
|
15%
of sub-total |
1979.09
|
||||
|
Total
rate |
15173.02
|
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Sample
of Rate Analysis
of Rate Analysis
Same Process for Brickwork
with ratio (1:3), (1:4), (1:6) etc.
DOWNLOAD BRICK WORK CALCULATION SHEET
with ratio (1:3), (1:4), (1:6) etc.
DOWNLOAD BRICK WORK CALCULATION SHEET