I have tried to my dismay a 90 LB air powered jack hammer. I get through the slab but have to bury the bit twice and still can't pry the chunks out with a Johnson bar. I'm thinking maybe having an excavator come in to try something. Any ideas? Should I cut it up with a saw and take it out in chunks? It's 8quot; thick and slightly more in some spots.
8 think AND with wire mesh? Even if you can do it yourself, between renting tools, and the value of your time, I suspect hiring the job out will actually SAVE money.
Nothing beats the power of heavy equipment for a job this size. Bite the bullet and get at least a large bobcat,or better a front end loader or loader/backhoe on the job. It will be cheaper in the long run as well as faster and far easier, plus a lot and safer for you. I'm a building contractor, I know what I'm talking about.
Excavator with a hammer on it . In a couple of hours it will be gone . load in a 20 yd container $ 1200 - $ 2000 done .
An excavator will not do the job, if you hire somebody to do it they will use a machine mounted jack hammer to smash it up. The 90 air hammer will work you just have to break it into smaller pieces which do not have wire running through them, having a heavy duty pair of bolt cutters handy is very helpful. You would need a large diamond bladed saw to cut through 8 very expensive and it does not cut to the edge if there are walls. Moving the chunks would require a machine. Does not matter how you do it it's a big job and I'd expect expensive.
