Today we are going to discuss brickwork calculation. We are going to find out the below for 1m3 of brickwork
- Number of bricks
- Required cement quantity
- Required sand quantity
Brickwork Basics
- Size of the Bricks – 190mm x 90mm x 90mm
For calculation, purposes convert the Size of bricks into Meter.
So now the measurement is 0.19m x 0.09m x 0.09m
Therefore Volume of 1 brick = 0.001539 m3
Brickwork Calculation Formula
STEP 1 – Volume of single brick without mortar
Volume of 1 brick without mortar = 0.19 x 0.09 x 0.09 = 0.0015 m3
STEP 2 – Volume of single brick with mortar
While brickwork construction we will add cement mortar around 3 sides (left, right & top).
So adding 10mm thick on each side of brick as mortar thickness
The volume of brick with mortar = (0.19+0.010) x (0.09+0.010) x (0.09+0.010) = 0.20 x 0.1 x 0.1 = 0.002 m3
The volume of 1 brick with mortar = 0.002 m3
STEP 3 – Number of bricks for 1 m3 Brickwork
Number of bricks with mortar for 1 m3 = 1 cubic meter / volume of bricks with mortar = (1/0.002)= 500 Nos
So the required number of bricks for 1 m3 = 500 Nos
STEP 4 – Cement Mortar Volume for 1m3 of Brickwork
Cement Mortar Volume = Volume of brickwork with mortar – the volume of bricks without mortar
Volume of bricks with mortar in 1 m3 = 500 x 0.002 = 1 m3
Volume of bricks without mortar in 1 m3 = 500 x 0.001539 = 0. 7695 m3
Therefore required cement mortar = 1 m3 – 0.7695 m3 = 0.2305 m3
Step 5 – Calculate Cement & Sand Volume
As we know the required cement mortar = 0.2305 m3
Assuming cement mortar ratio as 1:5 (1 Part Cement: 5 Part Sand)
We have already discussed the cement mortar volume calculation in the plastering work post.
The above formula will give the dry volume of cement mortar, So to get wet concrete volume, we have to multiply the dry volume by 1.55
Total Parts = 1+5 =6
Required Volume of Cement = 1/6 x 1.55 (void ratio) x Mortar Volume = 1/6 x 1.55 x 0.2305= 0.0595 m3
To convert into cement bags – (0.0595 x 1440)/50 = 1.71 Bags or 85.68 Kg
Required Sand Volume = 5/6 x 1.55 (void ratio) x Mortar Volume = 5/6 x 1.55 x 0.2305 = 0.298 m3
Result
Materials required for 1 m3 Brickwork is
- 500 Numbers of bricks
- 85.68 kg or 1.71 Bags of cement
- 0.298 m3 of sand
Make Use of this brickwork calculator
Hope you learned something from this post. Happy day 🙂
1 Comment
For cement mortar the dry volume factor to be considered is 1.33 not 1.55