As the name suggests, concrete has dry and wet volumes when formulated in quantity calculation of cement ,sand and aggregates.While, undergoing your degree in civil engineering, you usually think or question- what is the factor 1.54 in Concrete?(or)What is 1.54 in Concrete in calculating quantity of cement ,sand and aggregate?.Let me keep it simple to make you understand its base.

1.54 is a factor that helps us to convert the wet volume of concrete into dry volume. If we transform wet volume into dry volume, then the dry volume is raised by 54% of wet volume.So that we can calculate the number of materials in dry condition.

 Let me make it clear by considering the concrete cube with dimensions as:

dimensions of cube

 Length of the concrete cube = 1 m

 Width of the concrete cube  = 1 m

 Height of the concrete cube = 1 m

 Volume of one cube = length × width × height = 1 x 1 x 1 = 1㎥ (wet volume)

 So, Wet Volume of Concrete is 1 cubic metre.

Now our main objective is to convert 1 cubic metre (wet volume) of concrete into dry volume. For that, we have to increase the wet volume to 54 percent.

It follows:

 Dry Volume of Concrete = Wet Volume + 54% of Wet Volume

  = 1 + (54 x 1 / 100)

  = 1 + (0.54 x 1)

  = 1 + 0.54

  = 1.54 cubic metre

 Note: To Convert ‘n’ cubic metre of concrete from wet to dry volume.

= 1.54 x n

Where ‘n’ = wet volume of concrete.

This is applicable in estimation of the mix design calculations for concrete.

Let me take an example :


 Length of the concrete cube = 5 m

 Width of the concrete cube  = 3 m

 Height of the concrete cube = 4 m

Wet volume = 5 x 3 x 4 =60

Dry Volume of Concrete  = Wet Volume + 54% of Wet Volume

                                         = 60 + (54/100 x 60)

                                         = 92.4


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