dhuvaragan


{ City } paramakudi
< Country > india
* Profession * be -civil engineering
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Question { Aroma, 6392 }

What is the meaning of M50,20? What is 50,what is 20


Answer

M stands for Mix
50 and 20 stands for compressive strength of the concrete cube after 28 days curing is 50N/mm^2 and 20N/mm^2
cube size 15cm×15cm×15cm

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