In my much younger builder's labourer days I'd have loved breaking that concrete up with a sledgehammer and a pickaxe!πͺ Smash it up, then wheelbarrow the pieces up a plank onto the back of a flat back wagon. π Whoever laid that mess should definitely be avoided if he, even possibly a she does such jobs for a living!π
Hopefully the mix is as poorly done as
the job as a whole looks to be.
We once had to dig a 6" slot across a concrete slab in order to lay a soil pipe for
a new dunny. The slab was only some 2' wide, though the cut was diagonal so maybe a 3' cut. The slab had been laid to stand propane cylinders, but was nearly 18" deep and incredibly well made and would not have disgraced Hitler's bunker. Took us a week to cut the trench, even with the help of a air powered rock drill. It perhaps didn't help that only had a garage compressor so had a beer barrel as a reservoir, which would take 15 or 20 mins to top up to 100psi, giving a couple of minutes drilling, then back to chisels and the sledge hammer. Hardest job I've ever done. It pissed down with rain all week which didn't help either