Grade of concrete

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Grade of concrete
                                 Grade of concrete is defined as the minimum strength the concrete must possess after 28 days of construction with proper quality control.


Concrete grade

 Grade                  Proportion

 M 5.                      1: 5 : 10      

  M7.5.                   1 : 4 : 8
   
   M10                     1 : 3 : 6

    M15.                   1 : 2 : 4

   M20.                    1 : 1.5 : 3

    M25.                    1 : 1 : 2

   M30                     1 : 0.75 : 1.5     

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