Answer / m.s.sathyajeth raja

M10-1:3:6
M15-1:2:4
M20-1:1.5:3
M25-1:1:2

From M30 Onwards the design mix should be adopted at the Site....since it is a Major form of Concrete

Answer / kondala rao pilli

FOR M25 THE MIX IS 1:1:2,FOR THE REMAINING ARE DESIGN MIXES

Answer / er.yogesh yadav

m-25 1:1:2
all other
concrete grade
its desgin mix
and depend to
structre.after
that desgin it.

Answer / xyz

In Books the ans of M25 is 1:1:2 But it is in olden day's
ratio when 53 grade cement is not available, Now to make
concrete mix you have to design the design mix.

Answer / kamran khan

M5 = 1:4:8
M10= 1:3:6
M15= 1:2:4
M20= 1:1.5:3
M25= 1:1:2
M30= 1:1:1
M35= 1: 0.75.1
There are m= mix and 5.10.15...........compressive strength.......

Answer / sobhan kuumar

M5 = 1:5:10
M7.5 = 1:4:8
M10 = 1:3:6
M15 = 1:2:4
M20 = 1:1.5:3
M25 = 1:1:2
M30 = 1:1:1

Answer / suman roy/amrita kr biswas

M5-1:5:10
M10-1:3:6
M15-1:2:4
M20-1:1.5:3
M25-1:1:2
M30-1:1:1
M35-1:0.75:1
ABOVE ARE BASED ON DESIGN MIX

Answer / abhishek raj

whatever the grade of the concrete is the design mix or the
components of mix depends upon us.,it mean it all be decided
at on the site and the structure which is going to be casted
at that time.

Answer / satya.mvvs

All are design mixes

Answer / praveenpalaparthi

M25:1:1:2
M30:1:1:2
M35:1:0.75:1
M40:1:0.5:0.5

Design a cantilever type retaining wall to retain sand for 4m above the ground. The sand fall slopes at the rate of 1 vertical to 2 horizontal. The weight of sand is 18000 N/m3, the angle of repose being 30. The safe bearing capacity of the soil is 200 kn/m2 at 1/25m below the ground level. Use m 15 concrete mix.

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