# How To Calculate Number Of Bricks, Cement And Sand For Brickwork ?

- Grade of mortar = 1:6 (cement : sand)
- Class A br
*ic*k (19 cm x 9 cm x 9 cm) - Volume of brickwork = 1.0 m
^{3} - Thickness of mortar = 10 mm

**Step 1 :- Calculation of bricks**

No. of bricks = (volume of brick work / volume of one brick with mortar)

Volume of one brick (without mortar) = .19*.09*.09 = 0.001539 m^{3}

since thickness of mortar = 10 mm (0.01 m)

**Volume of brick with mortar = (0.19+0.01) x (0.09+0.1)x (0.09+0.1) = 0.2×0.1×0.1 = 0.002 ****m ^{3}**

therefore,

No.of bricks = 1.0/ (0.002)** = 5***00*

**consider the percentage of waste ***as 10 % or 15 %*

Total no. of bricks = 500 + (10 x 500 )/100=*550*

**Step 2 :- Calculation for quantity of mortar**

Since we need 500 no of bricks

volume occupied by bricks = No of bricks x volume of one brick

Volume of bricks = 500 x 0.001539 = 0.7695 m^{3}

Volume of mortar = Volume of BRICK WORK – Volume of BRICKS

therefore,

**volume of Mortar = 1.0 – 0.7695 = **** 0.2305 **m

^{3}

**Step 3:- Calculation for Quantity of CEMENT**

**Cement = (dry volume of mortar x Cement ratio)/ sum of the ratio,s(proportion)**

Dry volume of Mortar = 1.33 x 0.2305 = 0.3065 m^{3}

( 33% increment due to volume shrink after water )

cement= (0.3065 x 1) / (1+6) = 0.3065/7= 0.043795 m^{3}

cement (kg) = 0.043795 x 1440 = *63.0648 kg*

No. of bags = 63.0648 / 50 =* 1.26 bags approximately 2 bags*

**Step 4 :- Calculation for Quantity of SAND**

**Sand =** **(dry volume of mortar x Sand ratio)/ sum of the ratio,s(proportion)**

or

sand = cement volume x 6 ( since 1:6 grade of mortar)

therefore,

sand = 0.043795 = *0.26277 m^3 or*

sand = 0.26277 x 1920 = 504.5184 kg /1000 = *0.5045 tonnes *or

sand = 0.26277 x 35.3147 = *9.279 cft *or

sand = 0.26277 x 0.354 = *0.0930 brass*

So, For

- Grade of mortar = 1:6 (cement : sand)
- Class A brick (19 cm x 9 cm x 9 cm)
- Volume of brickwork = 1.0 m
^{3} - Thickness of mortar = 10 mm

**Number of Bricks = 500**

**Cement = 1.26 bags of 50 Kg**

**Sand = 0.26277 ****m ^{3}**