**Quantity of Cement and Sand Calculation in Mortar**

Quantity of cement mortar is required for rate analysis of brickwork and plaster or estimation of masonry work for a building or structure. Cement mortar is used in various proportions, i.e. 1:1, 1:2, 1:3, 1:4, 1:6, 1:8 etc.

**Calculation of quantity of cement mortar in brickwork and plaster:**

For the calculation of cement mortar, let us assume that we use 1m^{3} of cement mortar. Procedure for calculation is:

1. Calculate the dry volume of materials required for 1m^{3} cement mortar. Considering voids in sands, we assume that materials consists of 60% voids. That is, for 1m^{3} of wet cement mortar, 1.6m^{3} of materials are required.

2. Now we calculate the volume of materials used in cement mortar based on its proportions.

Letâ€™s say, the proportion of cement and sand in mortar is 1:X, where X is the volume of sand required.

Then, the volume of sand required for 1:X proportion of 1m^{3} cement mortar will be

3. Volume of cement will be calculated as:

Since the volume of 1 bag of cement is 0.0347 m^{3}, so the number of bag of cement will be calculated as:

**Example:**

For cement mortar of 1:6, the quantity calculated will be as below:

Sand quantity:

Quantity of cement (in bags):

Volume of cement =

There number of bags required = = 6.58 bags.

## Comments ( 72 )

CAN YOU POST THE FOUNDATION LAYOUT EARTHWORK CALCULATION

You are making us who are dealing with construction knowledgeable almost every day, keep it up

It was very simply explained and can comes to aid for field engineers. But the crux of this calculation is finding the voids, here i will explain you a simple and useful way to find the voids in sand.

Take a small container with uniform shape from bottom to top(say a dia of 15cm) and measure the depth of the container say X, now fill the container with sand using a trowel. After the container was filled completely, start pouring water and tap the sand with 12 mm rod uniformly all over the container till the water reaches the top of the container. Allow the sand in the container to settle for 10 minutes, now measure the distance above the sand and upto the top of the container say Y. Now we can get the percentage of voids with this simple formula (100/X)*Y.

Once we get the voids percentage we can calculate the cement and sand required for various cement mortars.

thanks

Thanks

Thanks…good explanation..

Exelent

Helping to calculation

good but i need 60 % of voids which code book told

good but i need 60 % of voids which code book told

good.

we need more

like but need more details

QS/SITE ENGINEER

QA/QC ENGINEER

civil engineer at perambalur

Cha gay Ho Shahzaday

Ranga Babu Project Manager Execution at KMV Projects Ltd.,

Thnx for sharing the information

Is there any Indian standards code for this formula…?

ppsingh lodhi -civil engg

thanx

work at civil engineer

nice ……..

thanks..

nice….

one cubic meter brick work how many mortar

consumption

Thankx Bro……

thanks :)

its not for concrete , only for cement mortar.

It is very useful to me

THIS FORMULA IS USEFUL.

this type is applicable for all the Grade of concrete ?

Useful and right …

wastage is how many percentage

THATS RIGHT.

very useful this formuls

very useful

ye to diploma 4y me padh liya h babu

very useful this formula

enaku purilada purira mathiri soluda

very useful this answers

thanks for this add sum examples

Thanks for it!!!!!!!!!!!!!!!!!!!!

it is very useful for civil engineer.

Very helpfull

thanks…..

cemen# sand iska equetion thoda parivarthan karsakthe. Eg:cement kithna sandal kithana

that was elementary math…

but apllication is different…..anywys tanxxx…was helpfull..

Its very much helfpul.

its helpfull

thanks

THANKS

thanxxxxxxx.

thank so much.

its helpful

excellent

Where X is

thanks for this….how we can find out the quantity of sand and cement in 30m2 plastered area or 6m3 brick work?

30m2 plaster= 144kg cement, 21cft sand

thanks friend

very useful for every civil engineerl.

Really Great………..

This is very good. Please can u post the simple method on calculation of quantity of materials in concrete? thanks

very nice…

most useful and simple to at site calculations!

That's I like.Thanks.

Good work but its more of mathematics.

superrrrrr…………………

ws

God bless you- please keep up.

thank you so much……

Nice.thanx.