how much ballast and cement do i need for 11.5m x .5m x .5m

hi, you will need 6tonne of ballas and 30 bags of cement. For this amount it is normally cheaper to get ready mixed concreate from a local depot.

Good evening. You will need 6ton of ballast, 30 cement, or if going down the ready mix route you will need 3cubic metres. The latter option will work out cheaper and quicker. Regards ABC

Hi you will need 6 ton of ballast and 30 bags of cement if you get poured ready mix concrete its a little more expensive but you save on labour time

The imperial strength of concrete is measured in pounds per square inch (psi) or megapascals (MPa). Low-strength concrete typically has a strength of 2,000 psi (14 MPa) while the strongest concretes, used in superstructures and bridges, would typically top 10,000 psi (70 MPa). Many specific civil building and structural applications use 5,000 psi (35 MPa) concrete. The strength of concrete mixed is generally related to the application needed.