m-30
0.17
between .15 and .20
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.
M30 grade concrete is used for high-strength structural applications where durability and load-bearing capacity are critical. Common purposes include: RCC structural elements like beams, slabs, and columns Foundations for residential and commercial buildings Pavements and rigid roads Parking structures and industrial floors Water-retaining structures when higher strength is required It’s chosen where moderate to heavy loads, better durability, and longer service life are needed.
The weight of concrete can vary slightly depending on its composition, but generally, M30 grade concrete has a density of about 2,400 kg per cubic meter. Therefore, 1 cubic meter of M30 concrete weighs approximately 2.4 tons.
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