On 15/03/2019 17:04, RJH wrote:
On 15/03/2019 16:45, ss wrote:
On 15/03/2019 15:49, Tim+ wrote:
I once broke up a similar area with just a sledge hammer. If you can
lever
up a bit with a pick axe to create a tiny space underneath, its not
that
hard to break up, and very satisfying.;-)

+1
I used a mixture of SDS plus with chisel and levering up and smacking
with a large sledge hammer took me about 2 or 3 days for a similar size.

Thanks everyone for the replies.

I have SDSd and couple of small areas, just to see how thick the slab
is. It was much harder work than I thought it'd be. The chisel bit
didn't manage to break the concrete, so a series of holes and cold chisel.

But I think I'll try the sledge hammer approach - I think a mate has one
I can borrow. Much as I'd like a new toy :-)

A lot depends on the cement content of the original mix. Whatever tool
you have, you really need to be working from an edge. Personally, I'd be
happy to invest 100 notes in one of those to save having to use a sledge
hammer too much.