HOW DO I CALCULATE BRICK, SAND AND CEMENT IN A BRICK MASONRY? -lceted LCETED INSTITUTE FOR CIVIL ENGINEERS

# How Do I Calculate Brick, Sand And Cement In Brick Masonry?

Before Going To Know About Calculation Of Brickwork
Here is our LCETED trivia about brickwork
1 we use 1:5 mix ratio for river sand
2. we use 1:6 mix ratio for M-sand
3. thickness of mortar is should be 10mm
Assume the given data is

1.   Class A brick (228mm × 107mm × 69m)

2.   Size of the wall for brickwork = 3m x 3m (4") wall

3.   Grade of mortar = 1:6 (cement : sand)

STEP 1: CALCULATION OF BRICKS
No. of bricks = (volume of brickwork/volume of one brick with mortar)
Volume of one brick without mortar = 228x107x69= (mm->m) = (0.228x0.107x0.069) = 0.00168m3

Since Thickness Of Mortar = 10 mm (0.01 m) 228x107x69mm = 238x117x79mm

Volume of brick with mortar = (0.228+0.01) x (0.107+0.1) x (0.069+0.1) = 0.238x0.117x0.079 = 0.002199834m3

Therefore,
No. of bricks of 1m3= 1.0 / (0.002199834) = 454.57
The total volume of the wall for brickwork = 3m x 3m x 0.107m (brick wall thickness 107mm) = 0.963m3
So,
No of bricks needed for the wall = 0.963 x 454.57 = 437.75 - 440 nos of bricks

Consider The Percentage Of Waste As 10 % Or 15 %
Total no. of bricks = 440 + (10 x 440 )/100= 484 - 500 nos

STEP 2: CALCULATION FOR QUANTITY OF MORTAR

Since we need 500 no of bricks for 1m3
Volume Occupied By Bricks = No Of Bricks X Volume Of One Brick
The volume of bricks = 500 x 0.00168 = 0.84m3

Volume Of Mortar = Volume Of Brick Work for 1m3 - Volume Of Bricks
Therefore,
Volume Of  Mortar = 1.0 - 0.84 = 0.16 m3

STEP 3: CALCULATION OF QUANTITY OF CEMENT

Cement = (Dry Volume Of Mortar X Cement Ratio)/ Sum Of The Ratios (Proportion)
Dry volume of Mortar = 0.16 x 1.33 = 0.2128 m3

33% Increment Due To Volume Shrink After Water
LCETED TRIVIA FOR CIVIL ENGINEERS
1 : 6
While working with first-class bricks, it should be noted that for the walls with the thickness of 9” the cement-sand ratio for brick masonry should be 1:6 and when it comes to a wall of 4.5” thickness the ratio can be made 1:4.

Cement = (0.2128 x 1) / (1+6) = 0.2128/7 = 0.0304 m3

LCETED TRIVIA FOR CIVIL ENGINEERS
We believe the standard density of 1 cement bag is equal to 1440 kg/m3

Cement  (kg) = 0.0304 x 1440 = 43.776 kg
No. of bags = 43.776 / 50 =  0.87552 bags
Therefore,
1m3 brick masonry needs 500 bricks and 0.87552 bags
So,
0.963m3 of brick wall need of cement bag = 0.963 x 0.87552 0.8431 - 1 Bags

STEP 4: CALCULATION FOR QUANTITY OF SAND
Sand = (Dry Volume Of Mortar X Sand Ratio)/ Sum Of The Ratios(Proportion)
OR
Sand = Cement Volume X 6 ( Since 1:6 Grade Of Mortar)
Therefore,
Volume of cement =  0.0304 m3
Sand = 0.0304 x 6 = 0.1824 m3

LCETED TRIVIA FOR CIVIL ENGINEERS
We believe the standard density of 1 m3 sand is equal to 1600 kg/m3

Sand = 0.1824 x 1600 = 291.84 kg /1000 = 0.29184  tonnes
OR
Sand = 0.29184 x 22 = 6.420 cft  (generally there are 22 cubic feet of sand in a ton)

0.963m3 of brick wall need sand in cft = 0.963 x 6.420 =  6.182 - 7 cft

So, The Result For Given data
1.   Grade of mortar = 1:6 (cement : sand)

2.   Volume of 3m x 3m (4") brick wall = 0.963m3

3.   Class A brick (228mm × 107mm × 69m)

4.   Thickness of mortar = 10 mm

NUMBER OF BRICKS = 500 nos
CEMENT = 1 BAGS OF 50 KG
SAND = 7 cft

ALSO USE: Brick Masonry Calculator | Brick wall Material Calculator | Brick Quantity Calculator

How much cement, sand, and bricks are needed for 1 cubic metre of brickwork?

For one cubic meter (cum) brick wall we need 455 nos bricks, 43.776 kg cement and  6.420 cft sand

How much cement, sand, and bricks are needed for 1 square metre of 9" brickwork?

As we now, area of 1 square meter 9” thick brick wall (1 x 1 x 0.225 = 0.225cum) is 0.2225 so we need 102.5 bricks, 9.8496kg cement and 1.4445 cft sand

How much cement, sand, and bricks are needed for 1 square metre of 4.5" brickwork?

As we know, the area of 1 square meter 4.5” thick brick wall (1 x 1 x 0.1125 = 0.115cum) is 0.2225 so we need 51.25 bricks, 4.9248kg cement and 0.72225cft sand

WE HOPE YOU UNDERSTAND OUR ARTICLE ON BRICKWORK CALCULATION. IF YOU WANT MORE UPDATES PLEASE PRESS THE BELL ICON

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