Just add enough water.
Add ballast that is less dense than the gravel/sand in the concrete such as LECA (Light Expanded Clay Aggregate).
The density of concrete can vary from 2,300 to 3,400 kg/m3.
Density of normal concrete is in the order of about 2400 kg. per cubic metre. The densityof light-weight concrete will be less than about density 1900 kg per cubic metre.The high density concrete have unit weight ranging from about 3360 kg percubic metre to 3840 kg per cubic metre.
The density of reinforced concrete is 2500 kg/cum or 25 kn/cum
The Civil Engineering Data Standards manual states the density of many grades of concrete. Standard density for fresh M-25 concrete is: 2414 Kg/ M3.
Add ballast that is less dense than the gravel/sand in the concrete such as LECA (Light Expanded Clay Aggregate).
Density of M30 and any fresh concrete is 2400kg/cu.m and reinforced concrete density you can take 2500 kg/cu.m
The density of concrete can vary from 2,300 to 3,400 kg/m3.
Wet concrete has a higher density due to his content in water.
The Civil Engineering Data Standards manual states the density of many grades of concrete. Standard density for fresh M-25 concrete is: 2414 Kg/ M3.
Concrete has a relative density of 2.4 (although see the note below). Calculation of a relative density requires comparison to a reference material. Most commonly this is water. Water has a density of 1000 kg/m3 while concrete has a density of 2400 kg/m3. As such concrete is 2.4 times denser than water and so it's reference density is 2.4.
1900
4000
Temparature effect on density
Density of normal concrete is in the order of about 2400 kg. per cubic metre. The densityof light-weight concrete will be less than about density 1900 kg per cubic metre.The high density concrete have unit weight ranging from about 3360 kg percubic metre to 3840 kg per cubic metre.
2400kgm3
The density of reinforced concrete is 2500 kg/cum or 25 kn/cum