Answer / santosh

Minimum M20 grade of concrete and max M100

Answer / nikunj faldu

M10 for PCC only (footing bottom,plinth Beam bottom)
M15 for PCC & flooring also.
M20 for normal slab,beam,column,flooring(residential&
industrial cons.)
M25 for bridg and havy industrial column& beam
M30-M35 for railwey bridg & conc. chimenys
(all of grades are i usein my profetion. and others are use
in special case only.)

Answer / siva

1

Answer / gopika

Hai Chauhan Akash
we usually go for M20 Grade concrete for normal construction with (1:2:4)mix proportion which is minimum and M100 grade concrete has been used as maximum mix proportion. Using M100 grade concrete, in Dubai, Kingdom Tower has been constructed which is the largest tower.tower. M100 gives high compressive strength so that it is highly useful for tall building construction.

Answer / sofia

M20

Answer / shunmugapriya

M20- minimum grade of concrete so it is used in commercial
buildings. i think M30 is used in heavy structures it is
also used in sea water constructions.

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