Advice please on terrace garden concrete

[Chayes]

Hello,

I need some advice on breaking out the concrete in the back on my terrace.

I want to break the concrete out and lower the GL. Can this be done easily enough? Is it worth also installing a french drain?

This areas was previously covered with gravel which I have dug out and removed.

Thanks

 

[CliffordPope]

I'd excavate a bit at one end, undermine as far as you can, then wack it with a big sledge hammer. Work along in a combination of spade, hammer and long breaker bar.
Even quite thick concrete is quite fragile if you can get a bit of overhang and really hammer it. It tends to get a bit easier as you work along because the shock waves seem to weaken it in advance. Like splitting a thick log - it's the first one that's hardest.

 

[stuart45]

You can also hire a breaker if you don't fancy using a sledge.

 

[Robola]

It is full of drains, break very carefully. What are you going to do with that metal drain inspection plate?