cement required for 1 cubic meter brickwork | how to calculate number of bricks
cement required for 1 cubic meter brickwork|how to calculate a number of bricks.
BASICS
In Building, bricks are the most essential and majorly used material. So it is essential for civil engineers to know the calculation of Bricks requirements
In this article, we will know about the following info
- Brickwork Calculation & Formula
- How to calculate bricks per square foot
- How to calculate cement quantity & Sand in brickwork
Brickwork Basic Points
The cement mortar ratio should be 1:6 for 9” Brickwork and 1:4 for 4.5” brickwork
Mortar thickness should not be more than 10 mm between the courses and sides of the bricks and we have to use English bond to get more strength
Brickwork Calculation & Formula
size of the modular brick is 190 X 90 X 90 (country Bricks)
Mortar Thickness is 10mm
Let us assume for 1 cum volume
For cement mortar calculation we need to segregate mortar and brick volume.
The volume of bricks with mortar
The volume of 1 brick with mortar = 200 X 100 X 100
( 10 mm mortar thickness on all sides)
= 0.2 X 0.1 X 0.1
The volume of a brick with mortar = 0.002 Cum
Number of bricks required for 1 cubic metre = 1/0.002 = 500 Nos
The volume of bricks without mortar
Volume of 1 brick without mortar = 190 X 90 X 90
= 0.19 X 0.09 X 0.09
The volume of 1 brick without mortar = 0.001539 Cum
Volume of 500 bricks without mortar = 500 X 0.001539 Cum
The volume of bricks without mortar for 1 cum = 0.7695 Cum (m3)
The required amount of cement mortar = 1 Cum – Volume of bricks without mortar
= 1 – 0.7695
The required amount of cement mortar = 0.2305 Cum
IMPORTANT NOTE
The above volume is in a wet condition. In order to find the dry volume, we need to multiply 33 % for bulking of sand
Dry volume of a mortar = 0.2305 cum X 1.33 = 0.306565 cum
We know the mortar ratio is 1:6
Required amount Cement quantity in brickwork = 0.306565 X 1/7 X 1440 kg
Required amount Cement quantity = 63 Kg = 1.26 bags
Required amount of Sand = 0.306565 X 6/7 = 0.26277 Cubic metre =12CFT
CONCLUSION
Therefore, For 1 cum of brickwork, we need
- 500 Numbers of bricks
- 63 kg of cement
- 0.263 m3 of sand.
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