On 04/08/2015 16:46, Sarie wrote:

I'm struggling to get one lump of concrete out though - it's about 2ft x
2ft and the same again deep. The pole that was in it was so rotten that
when I tried to wiggle it to move the concrete, the pole snapped clean
off. There's now about 6 inches of metal poking out of the concrete so
I've got no choice but to excavate it as it's dangerous and I can't bury
it with turf but it's going to be a nightmare!

If it really is that big and solid you may have to split it the
traditional way with wedges or ice freeze thaw action in winter.

A 2' cube of solid concrete will be too heavy to move on your own.

Can't say I advise excavating this amount of concrete single handedly,
I'm pretty bruised! It'll be worth it though to get rid of it all

Be careful using levers to get it out (which is one way to move it). You
can inflict serious damage if you make a mistake.

My favourite method is an 8' scaffold pole and a very solid fulcrum.

--
Regards,
Martin Brown