What is 1.54 or 1.57 in Concrete Mix Design Calculation.

What is 1.54 or 1.57 in Concrete Mix Design While Calculating Quantity of Cement, Sand And Aggregate?????

Here is the answer….CUBE

Whenever we find the volume (generally) is always a wet volume.

So, Volume of Cube or Wet Volume of Cube = 1m x 1m x 1m = 1m³ .

and we know Dry Volumn is always greater than Wet Volumn. ( Vdry  > Vwet )

Generally,

Dry  Volumn Concrete  =  Approximate 54 % to 57 %  more than Wet Volumn Concrete.

= Wet Volume + (54% of Wet Volume …..or….. 57% of Wet Volume)

= 1m³ + (54/100) x 1m³ …..or….. 1m³ + (57/100) x 1m³

= (1+0.54) m³ …..or….. (1+0.57) m³

= 1.54 m³ …..or….. 1.57 m³

so, considering the factor of safety ranging from 1.54 to 1.57 to counter that shrinkage. i.e., Volume of dry concrete = 1.54 to 1.57 times Volume of wet concrete.

 

 

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