Cement Concrete Calculator

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1. Cement Concrete Calculator  Example

One example of materials calculation of cement concrete is given below: 

 

Data per 1 m³ of M20 Concrete Ratio

MaterialVolume Required (m3)Materials Required in kg
Cement0.28403.2
Fine Aggregate0.42619.85
Coarse Aggregate0.841359.82
Water0.190190 kg ( Average )

 

Things To Know!!

Density of Cement = 1440 kg/m3

Density of Sand = 1450-1500 Kg/m3

Density of Aggregate = 1450-1550 Kg/m3

Weight of Cement in 1 Bag = 50 Kg

Volume of 1 Bag of Cement in Cubic meter = 0.03472 m3

 

Now, Taking

Grade of Concrete = M20 Concrete

Mix Ratio = 1:1.5:3

Total sum of ratio =1+1.5+3 =5.5

Wet volume of Concrete = 1 m3.

To get dry volume, wet volume increased by 54%

Dry volume of concrete = 1 + 0.54 = 1.54 m³

 

i. Cement Quantity Calculation

Quantity of cement = (Own Ratio/ Total sum of ratio) * Dry Volume

= ( 1/5.5 ) * 1.54

=  0.28 m³

Cement in kg = volume of cement * density of cement

= 0.28 * 1440

= 403.2 kg

 

ii. Sand Quantity Calculation 

Quantity of sand = (Own Ratio/ Total sum of ratio) * Dry Volume

= ( 1.5/5.5 ) * 1.54

=  0.42 m³

 

iii. Aggregate Quantity Calculation 

Quantity of aggregate = (Own Ratio/ Total sum of ratio) * Dry Volume

= ( 3/5.5 ) * 1.54

=  0.84 m³

 

iv. Water Calculation

For inferior-quality concrete: W/C ratio = 0.5

For superior-quality concrete: W/C ratio = 0.45

Minimum amount of water required per m³ = 0.45 * 403.2 = 181.44 kg 

Maximum amount of water required per m³ = 0.5 * 403.2 = 201.6 kg

 

2. References  

1. Indian Standard IS 456:2000

 

Read Also: Grades of Concrete
Verified Article By Er. Madhu Krishna Poudel
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