# Cement quantity from concrete

### CEMENT QUANTITY FROM CONCRETE -How to find cement quantity from concrete? You're in the right place.

**CALCULATION OF CEMENT QUANTITY FROM CONCRETE**

Before starting this you need to know some basic things which are given below-

Grade of concrete and its proportion:

**Grade of concrete-CEMENT:SAND:STONE****M 5-1:5:10****M 7.5-1:4:8****M 10-1:3:6****M 15-1:2:4****M 20-1:1.5:3****M 25-1:1:2****M 30-1:0.75:1.5****M 35-1:0.5:1****M 40-1:0.25:0.5**

__lets take an example__:

**F**

*ind out the amount of*__cement__,__sand__and__stone__in__1 cu.m__concrete of__M15__grade.

**--**

**concrete amount=1cu.m,**

**grade of concrete=M15(1:2:4)**

**We know that volume of concrete is 1cu.m , but remember that this volume is a wet volume.**

**for calculation we have to convert this wet volume to dry volume.**

**dry volume=wet volume+ 54% of wet volume**

**=1+{1*(54/100)}=1.54**

**thus we need to multiply wet volume by 1.54 to convert it into dry volume.**

**Amount of cement={1.54/(1+2+4)}*1 cu.m=0.22 cu.m**

**Amount of sand={1.54/(1+2+4)}*2 cu.m=0.44 cu.m**

**Amount of stone={1.54/(1+2+4)}*4 cu.m=0.88 cu.m**

__we have calculated amount of cement,sand and stone in cu.m but in practical life you need to know that how much bag of cement is required and amount of sand and stone in cft(cubic feet) not in cu.m.__

**Now we will calculate how many bag of cement = 0.22 cu.m**

**1 bag cement= 50 kg ,where density of cement=1440 kg/cu.m ,**

Thus, 1 bag cement = (50/1440)=0.0347 cu.m

**0.22 cu.m= (0.22/0.0347)=6.34=7 no. of bag.****so,**

__amount of cement= 7 no.of bag of cement__

**next we will convert cu.m to cft unit for sand and stone**

**1cu.m=35.32 cft for sand and stone only.**

__amount of sand=35.32*0.44=15.54 cft__

__amount of stone=35.32*0.88=31.08 cft.__

- Cement- 7 no. of bags
- Sand-15.54 cft
- Stone-31.08 cft

This is all about cement quantity calculation.I hope you all liked this.

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Cement quantity from concrete
Reviewed by Civil049seminar
on
July 11, 2018
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