between .15 and .20
0.17
from M30 onwards the mixes are designed. they dont have a const ration as in the case of mixes like M10, M15....,M25
2900
1:1:2 Hope it helps
1:1.5:3
0.17
m-30
The ratio of M30 to WHAT!
from M30 onwards the mixes are designed. they dont have a const ration as in the case of mixes like M10, M15....,M25
The ratios of cement to sand to aggregate for the different grades of concrete are as follows. M10 has a ratio of 1:3:6. M15 has a ratio of 1:2:4. M20 has a ratio of 1:1.5:3. M25 has a ratio of 1:1:2, but M30 has no set ratio. It is a designed mixture to achieve the stress tolerance desired.
we use M30 grade concrete commercial slabs like shopping malls . college buildings
cemet: sand: Agg=1:1:2 (Nominal Mix) Above answer is not as per engineering standards. For concrete mixing ration in M30 grade concrete, the mix has to be designed after testing all the materials including water in labs. When you go for higher grade of concretes the mix has to be designed , it is the water to cement ratio which has to be monitered for higher grades of concrete
1:1:2
2900
Density of M30 and any fresh concrete is 2400kg/cu.m and reinforced concrete density you can take 2500 kg/cu.m
M 25
1:1:2 Hope it helps