Concrete Slab with footings advice needed please

[dunny1234]

I'm preparing ground for concrete slab. I've now dug my slab area (10m x 6m), and 225mm deep footings around the perimeter and up the centre as recommended by structural engineer (where timber frame panels will be).

I've started to lay my sub-base (803), next will be a layer of sand. After this i plan to construct my formwork around the perimeter, lay my DPM, place steel mesh and then pour concrete.

I think i'm doing this the correct way? Any advice would be gratefully received? Really want it to be right before the scary pour of concrete

Thanks in advance

[welsh brickie]

you will have to contact the building control officer before you proceed to pour the concrete.He is the best person to advise you

[bob2012]

If you’re having problems calculating how much concrete you need, Google "tarmac.co.uk/concretecalculator"
It works quite good on my moby as well.
- Bob