Bits of concrete under lawn - removal

[gluttonouspet]

Hi all, I'm really hoping someone can help me with this...

I've dug up a thin stretch of lawn seperating the pavement from my house with the intvention of putting in a fence. This seemed to be working fine and I got one stretch of it in fine, but then hit a snag. The metal stakes I was driving into the ground suddenly started hitting concrete. I know it's a section only but I've been unable to dig it out. I've been able to chip away with a hammer and chisel but I think that would take me weeks. So ideally I need something more threatening to attack it with while it's in the ground.

Forgive my ignorance on this subject, but any help would be much appreciated. I have had a brief Google around and seen jackhammers, saws and angle grinders, but I'm not sure what's the best (if any of those) to use. Ideally it'd be something fairly cheap.

Thanks!
GP

 

[Burnerman]

Consider hiring an electric breaker, similar to the time honoured Kango.....to use an angle grinder or stihl saw or whatever means you'll have to unearth the concrete first.
John

 

[gluttonouspet]

Thanks Burnerman, I'll explore that option !

 

[lostinthelight]

If its a big solid lump digging it out could mean you have a soft area in which to fix your post?
Can you tell if its large enough to maybe core drill into it and cement the post in the hole??
litl

 

[Newboy]

It's worth considering if the patch of concrete is protecting a service pipe/drain.