brickwork

How to calculate cement, sand and numbers of brick in brickwork?

First we will calculate the quantity of 1 cubic metre brickwork volume.

Wet volume = 1m3

Now we have to find out dry volume of the mortar, so we take 1.33 as coefficient of the compressibility in multiplication of its wet volume.

Dry volume = 1.33 * wet volume

Number of bricks:

Standard modular brick size is 190*90*90 m3

Size of standard modular brick with mortar is 200*100*100 m3

Number of bricks = total volume/ volume of brick with mortar

Hence, volume of brick with mortar is 0.2*0.1*0.1=0.002 m3

We have total volume is 1 m3

therefor, Number of bricks = 1/0.002 =500 no’s.

Volume of mortar:

Volume of mortar = Total volume – (number of bricks * volume of bricks without mortar)

= 1 – (500 * 0.0015) (0.19*0.09*0.09= 0.0015 m3)

= 0.25 m3

Therefor, dry volume = 1.34 * 0.25

= 0.335 m3

If given mortar ratio is 1:4

Here cement is 1 And sand is 4 in proportions. Sum of ratio will be 5.

Quantity of cement:

For 1 m3 = dry volume of mortar * cement ratio / sum of ratio

= 0.335 * 1 / 5

= 0.067 m3

In KG = 0.067 * unit weight of cement

= 0.067 * 1440

= 98.48 KG

In bags = 98.48 / weight of 1 bag of cement

= 98.48 / 50 = 1.92 i.e. 2 bags.

Quantity of sand:

For 1 m3 = dry volume of mortar * sand ratio / sum of ratio

= 0.335 * 4 / 5

0.268 m3

In weight= 0.268 * unit weight of sand (kg/m3)

= 0.268 * 1450

= 388.6 Kg

In cft = 0.268 * 35.31 (1m = 3.281 feet)

= 9.46 cubic feet

For 1 m3 of brickwork volume, we need 2 bags of cement, 9.46 cubic feet sand and 500 no’s of bricks.

Read more

How to calculate quantity of cement, sand, and aggregates for M20 grade concrete. https://www.onlinecivils.com/2023/09/07/how-to-calculate-quantity-of-cement-sand-and-aggregates-for-m20-grade-concrete/

Important things to do before start the construction process of any building structure up to plinth level.https://www.onlinecivils.com/2023/08/31/important-things-to-do-before-start-the-construction-process-of-any-building-structure-up-to-plinth-level/

What is basics of cement concrete ingredients and applicationshttps://www.onlinecivils.com/2023/08/01/what-is-basics-of-cement-concrete-ingredients-and-applications/

Post Author: hemantduva

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