How to Calculate the Quantity of Cement Mortar In Brickwork and Plaster

Brick Work Calculation

What Is Brick work. ?

The Bricks work is the laying of brick in the systematic manner with the help of the mortar in the number of layers. In brick-work, bricks are laid horizontally side by side & 1 above the other to make them strong. The structure of formed by placing brick in such a manner is called a brick masonry wall.

Brick work calculations & how to calculated QTY of cement mortar in brickwork & plaster is given below.

How Many Types of Bricks used in Construction?

The three most used bricks used in Building Construction are as follows.

1 . Red Brick

2 . Fly Ash Brick

3 . Hollow Brick

Standard Size of Brick

1 . Red Bricks

The standard Size of the Brick in mm is 190 x 90 x 90 mm ( Length x Width x Thickness)

Learn More

Civil Engineering Technology   

Bar Bending Schedule For Reinforcement Beam

The Standard Brick Dimensions Inches is 7.48 In X 3.54 In X 3.54 In (Length x Width x Thickness)

2 . Fly Ash Brick

The standard size of the fly ash brick is 230-mm x 110-mm x 75-mm used in Construction.

3 . Hollow Brick

The standard size of the hollow brick is 30 x 15 x 15cm.

How to Calculate the Number of Brick in a wall 

First of all, we do a brick work calculation for 1-m³ of brickwork volume.

The volume of the brick work = 1-m³

Size of the brick with mortar = 20cm x 10cm x 10cm

The Standard size of the brick without mortar = 19cm x 9cm x 9cm.

Nos of the brick required in 1-m³ = 1/(0.20×0.10×0.10) = 500Nos.

Learn More

Bar Bending Schedule For Circular Column

500 is the number of the bricks required in 1-m3 with mortar. It means mortar volume is also calculated in the calculations. So we have to find out the actual numbers of bricks & the QTY of mortar.

Actual volume of the Brick = 500 x (0.19 × 0.09 × 0.09) = 0.7695 m3

Volume of the Mortar = 1 – 0.7695 = 0.2305 m3

Adding ten%  wastage  = 0.2305 + (0.2305×10/100) = 0.2305 + 0.02305 = 0.25355 m3

As this is the wet volume of the mortar, the dry volume is generally twenty five% more than wet volume.

Add twenty five% Extra volume for the dry volume of mortar.

= 0.25355 + (0.2355 × 25 / 100) = 0.25355 + 0.0633875 = 0.3169 m3

So, from the above calculation we can say that

Nos. of Brick required for one m3 of brick work = 500

Mortar required for one m3 of brick = 0.3169 m3

---

( Civil Engineering Technology )

---

How to Calculate the QTY of Cement Mortar in Brickwork & Plaster

1 . QTY of the Cement Mortar In Brick work Calculation

Let’s Take an example, The length of wall = three m, width = two m, & thickness of the wall = 0.23-m.

Volume of the Brickwork = 9 x 5 x 0.23 = 10.35-m3

We know that, for one m3 brickwork = 500 Nos required

So, for 10.35-m3 of the brick work = 500x 10.35 = 5175 Nos.

Now Also , know that for one m3 of the brickwork = 0.3169 m3 of mortar is required

So, for 10.35 m3 of the brickwork = 0.3169 × 10.35 = 3.28 m3

Now, Let us find out the QTY of cement & sand in mortar,

Learn More

What Is Difference between Site Engineer And Civil Supervisor

Mix Ratio 1:4

Consider mortar mix ration is 1:4

one part = cement, four part = sand

Total part = 1 + 4 = 5 part

1 . Cement ( bags )

Cement = 1 / 5  x (volume of the mortar)

= 1 / 5  x  3.28

= 0.656 m3 ( volume of one bag of cement = 0.035 m3 )

= 0.656 / 0.035

Cement = 18.74 bags = 19 bags

2 . Sand ( cu-ft. )

Sand = 4 / 5 x 3.28

Sand = 2.62 m3

Learn More

How To Find The Volume Of Concrete For Trapezoidal Footing

For Mix Ratio ( 1:6 )

Cement = one part, Sand = Six part

Total Part = 1 + 6 = 7 part

1. Cement ( Bags )

Cement = 1/7 x 3.28

Cement = 0.46 m3 ( One bag volume of the cement = 0.035 m3 ) 

Cement = 13.14 bags

2. Sand ( cu- ft. )

Sand = 6/7 x 3.28

Sand = 2.18 m3

Summary.

1 . For Cement Mortar (1:4)

Cement = 19 bags , Sand = 2.62 m3 ( 92.52 ft3 )

2 . For Cement Mortar (1:6)

Cement = 13 bags, Sand = 2.18 m3 ( 77 ft3 )

Cement Mortar Calculation In The Plasterwork.

Consider a wall having length = fifteen m, width = Eight m with plasterwork thickness = 12 mm (0.012m)

First, Calculate The Volume of Cement Plaster work

Volume of  the Cement Mortar in Plastering = 15 x 8 x 0.012 = 1.44 m3

Adding Ten% wastage = 1.44 + 1.44 x (10 / 100) = 1.44 + 0.144 = 1.584 m3 (wet volume of the mortar)

As this is wet volume of the mortar, the dry volume is generally Twenty five% more than wet volume.

Add Twenty Five % Extra volume for the dry volume of mortar.

= 1.584 + ( 1.584 × 25 / 100 ) = 1.584 + 0.1584 = 1.74 m3

Learn More

• How to calculate the number of bricks in 1 CFT wall

• Types of Stone Masonry

Cement Mortar Mix Ratio = ( 1:4 )

One part cement & Four part sand ( Total Part = ( 1 + 4 ) = 5 part

1. Cement ( One part )

Cement = ( 1 / 4 ) x 1.74

= 0.435 m3 (One bag volume of the cement = 0.035 m3)

= 0.435 / 0.035 = 12.42

Cement = 12.42 bags

2 . Sand ( Four part )

Sand = 4 / 5 x 1.74

Sand = 1.392 m3

Cement Mortar Mix Ration = ( 1:6 )

Cement part = One  , Sand Part = Six

Cement = ( 1 / 7 ) x 1.74

= 0.24 m3  ( One bag volume of the cement = 0.035 m3 )

= 0.24 / 0.035 = 7.10

Cement = 7.10 bags

Learn More

Civil Engineering Interview Questions And Answers

2 . Sand ( Four part )

Sand = 6 / 7 x 1.74

Sand = 1.49 m3

Summary.

For ( 1:4 ) Mix Cement Mortar : Cement = 12.42 bags, Sand 1.392 m3 ( 49.15 ft3 )

 

For ( 1:4 ) Mix Cement Mortar : Cement = 7.10 bags, Sand 1.49 m3 ( 52.61 ft3 )

---

Different Cement Mortar Mix Ratio with Cement & Sand QTY

1 . For One m3 Volume

Mix Ratio	Cement ( Bags )	Sand ( m3 )
1 : 2	13.10	0.92 m3 (32.49-ft3)
1 : 3	9.82	1.03 m3 (36.37-ft3)
1 : 4	7.86	1.10 m3 (38.85-ft3)
1 : 5	6.55	1.15 m3 (40.61-ft3)
1 : 6	5.61	1.18 m3 (41.67-ft3)

Visit This Platform

Civil Engineering Technology

---

2 . For Ten m3 Volume

Mix Ratio	Cement ( Bags )	Sand ( m3 )
1 : 2	130.95	9.17 m3 (323.84-ft3)
1 : 3	98.21	10.31 m3 (364.09-ft3)
1 : 4	78.57	11.00 m3 (388.46-ft3)
1 : 5	65.48	11.46 m3 (404.74-ft3)
1 : 6	56.12	11.79 m3 (416.36 ft3)

Learn More

3 . Cement Mortar In Brick Work ( One m³ Brick work )

Nos of Bricks	Mix Ratio	Cement ( Bags )	Sand
500	1 : 2	3.02	0.21 m3 (7.42-ft3)
500	1 : 3	2.26	0.24 m3 ( 8.48-ft3)
500	1 : 4	1.81	0.25 m3 (8.83-ft3)
500	1 : 5	1.51	0.26 m3 (9.18-ft3)
500	1 : 6	1.29	0.27 m3 (9.53-ft3)

4 . Cement Mortar In Brick Work (10m³ Brick work)

Nos of Bricks	Mix Ratio	Cement ( Bags )	Sand
5000	1 : 2	30.18	2.21 m3 (78.05-ft3)
5000	1 : 3	22.64	2.38 m3 (84.05-ft3)
5000	1 : 4	18.11	2.54 m3 (89.70-ft3)
5000	1 : 5	15.09	2.64 m3 (93.23-ft3)
5000	1 : 6	12.94	2.72  m3 (96.06-ft3)

---

Other Post

1. Thumb Rules Formula for Civil Engineers And Quantity Surveyors

2. What is Differences Between One Way And Two Way Slab

3. Basic Components Of Road Work Structure 

 

To Get More Information, Visit Our Official website
Land Surveying & Architects

JOIN US & LIKE OUR OFFICIAL FACEBOOK PAGE

THANKS.