What is Procedure Cube test of concrete as per Grad M10,15,20,25

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Cube test is conducted to determine the compressive strength of concrete for different grades like M10, M15, M20, M25.

Prepare the concrete mix as per the design mix proportions for the respective grade (M10, M15, M20, M25).
Fill the concrete in cube molds of standard size and compact it properly using a tamping rod.
After 24 hours, demold the cubes and cure them in water for 7 or 28 days depending on the grade.
Place the cubes in a compression testing machine and apply load gradually until failure occurs.
Calculate the compressive strength of the cubes by dividing the maximum load applied by the cross-sectional area of the cube.
Repeat the test for multiple cubes to ensure accuracy of results.

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