What is the difference between M20 and M25 concrete?

Answer Posted / k.shivakumar

M20 - Mix 20 is the Grade of concrete which attains its
compression strength of 200kg per sqcm or 20Ner sqmm or
20Mpa after 28days of casting of concrete

M25 - Mix 25 is the Grade of concrete which attains its
compression strength of 250kg per sqcm or 25 N per sqmm or
25Mpa after 28days of casting of concrete

hence the difference is only 5

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