Cement - CES (IISc)

completed solution of mixing of cement 

Proportions are expressed as follows: 1:2:4, which means that to one part cement you add two parts sand and four parts gravel. A "part" usually refers to a unit of volume.

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there is nothing to worry about IS methode 

here simple tips for you in hindi 

1:2:4 ratio matalb a hota hai ke aap ko 1 unit cement me 2 unit sand +4 unint aggregate dalni hoti hai