How Much Ballast will i need?

[joe1990]

Hello, Im Joe, and im new!


Quick question

I want to put a concret slab down to park a car on,

it will be at the top of my driveway, the space i will be putting down will be around 18 feet by 18 feet,

theres already a concrete base there thats not level, and im planing on four inchs deep?

Any help before i order my ballast and concrete?

Cheers
Joe

 

[PrenticeBoyofDerry]

Hello "New" Joe1990 and welcome!
The volume is about 3 cubic metres.
So you will need about 5 ton of ballast.
Make sure the base you are going to lay on is sound, remove any dirt, dust, loose materials.
Be worth damping the base down before you pour.

 

[noseall]

Get 6 tonne, you will not have much left.