HOW TO CALCULATE THE QUANTITY FOR CEMENT,SAND, AND AGGREGATES

HOW TO CALCULATE THE QUANTITY FOR CEMENT,SAND, AND AGGREGATES

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https://youtu.be/amFE3W1BvY4

1. How to calculate cement, sand,
and aggregates in concrete

2. How to calculate cement, sand, and aggregates in concrete
•Density of cement = 1440 kg/m
3
•Desityof Sand = 1450-1500 kg/m
3
•Density of Aggregate = 1450-1550 kg/m
3
•1 Bag of cement = 50 kg
•1 Bag of cement = 34.7 liters
•1 Bag of cement = 0.0347 cubic meter
•Specific gravity of cement = 3.15
Where 33, 43, 53, compressive strength of cement in N/mm
2

3. How to calculate cement, sand, and aggregates in concrete
Consider volume of concrete = 1m
3
M-20= 1:1.5:3 = 5.5
cement:sand:aggregates
Where, M = Mix
20 = characteristic compressive strength
Dry volume of concrete = 1 ×1.5 = 1.54m
3
Cement=
1
5.5
×1.54 = 0.28??????
3
Density of cement is 1440/??????
3
= 0.28×1440 = 403.2 kg
We have each bag of cement is 50 kg
=
403.2
50
= 8 Bags
We know in one bag of cement = 1.226 CFT
= 8×1.226 = 9.8 CFT

4. How to calculate cement, sand, and aggregates in concrete
Consider volume of concrete = 1m
3
M-20= 1:1.5:3 = 5.5
cement:sand:aggregates
Where, M = Mix
20 = characteristic compressive strength
Sand =
1.5
5.5
×1.54 = 0.42??????
3
Density of sand is 1450/??????
3
=0.42 ×1450= 609 kg/??????
3
As we know that 1??????
3
= 35.31 CFT
=0.42×35.31 = 14.83 CFT

5. How to calculate cement, sand, and aggregates in concrete
Consider volume of concrete = 1m
3
M-20= 1:1.5:3 = 5.5
cement:sand:aggregates
Where, M = Mix
20 = characteristic compressive strength
Aggregates=
3
5.5
×1.54 = 0.84??????
3
Density of aggregates is 1500/??????
3
=0.84 ×1500= 1260 kg/??????
3
As we know that 1??????
3
= 35.31 CFT
=0.84 ×35.31 = 29.66 CFT
To verify the calculation we can add 0.28??????
3
+0.42??????
3
+0.84??????
3
= 1.54m
3