1.54 In Concrete Calculation?

In concrete computation, we constantly increase Wet volume with 1.54 to get dry volume. But do you know what is 1.54 or where this 1.54 originated from? If You don’t know, no issue. In this post, I will discuss what is 1.54 while determining the amount of cement, sand, aggregates for concrete.

let us take a concrete cube. Length of  the concrete cube = 1 m

Width of the concrete cube = 1 m

Height of the concrete cube = 1 m

Volume of concrete cube = length x Width x Height = 1 x 1 x 1 = 1 m³ (Wet volume)

When we transform this we volume into dry volume, the volume is increased by 54% of damp volume.

Therefore Dry volume = Wet volume + 54% of Wet volume

= 1 + (54/100) x 1 =1 + 0.54 = 1.54

To transform the damp volume of 1 m³ concrete into dry volume = 1.54

To transform the damp volume of “n” m³ concrete into dry volume = 1.54 x n

Where n = Wet volume of concrete.

Example: Length of  the concrete cube = 4 m

Width of the concrete cube = 3 m

Height of the concrete cube = 2 m

Wet volume = 4 x 3 x 2 = 24 m³

Therefore Dry volume = ( Wet volume + 54% of damp volume)

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= 24 + {(54/100) x 24}

= 36.96 m³

Note:

Always keep in mind in concrete computation, we get damp volume initially, to transform damp volume into dry volume, increase damp volume with 1.54.