That's going to depend on many things you haven't mentioned, including how deep/thick you need it to be.
400 sacks
24
2500 km = 2,500,000 m
2500 ml
2,500 kPa = 362.6 psi (rounded)
172.368932 bar
To convert 2500 kg/m² to psi, you would need to divide by 9.81 (acceleration due to gravity in m/s²) and then multiply by 0.000145038 (conversion factor from kg/m² to psi). So, 2500 kg/m² is equivalent to approximately 36.3 psi.
It means that the valve is rated for a pressure of 2500 psi.
5 sacks of cement per 1 yard of concrete
We now have more accurate ways to make the mixture. It was commonly believed that a "5 sac mix" was 3000 psi. Now you just order by the psi you want.
the chargers had 61 sacks.
20 sacks in 2010
35 psi with stock turbo or 49 psi with stock head gasket.
Minimum of about 10 psi at idle, 30 psi at 3000 rpm
It is written on the side of the tire in small print.
35 - 177 psi