How to calculate compressive strength of concrete cube formula?

Concrete Cube Formula

• To calculate the compressive strength of the concrete cube, divide the maximum load applied on the cube during the test by the cross-section area of the cube and take the average of all the cubes results to get the exact compressive strength of the concrete.
• The result should be expressed to the nearest 0.5 N/mm².
• Note that Specimens that are clearly defective or have strengths that deviate by more than 10% from the average value of all test specimens are not considered.

Also check: Consistency of Cement, Plate Load test, Vee Bee test