Minimum Grade Of Concrete For Various Structure

TYPES OF CONSTRUCTION            MINIMUM GRADE                                       

Lean Concrete Bases           M5 And M7.5

Plain Cement Concrete       M10

RCC General Construction  M15

Water Tanks, Domes,

 Folded Tanks                        M20

RCC in Sea Water                 M30 for RCCand

                                                M20 for PCC

    

Post-Tensioned PSC             M30

Pre-Tensioned PSC               M40