Wednesday, July 6, 2016

How much breaker do I need for my concrete slab?

Our new house has a really poorly designed raised (~18") patio on a concrete slab. We want to demo it and make a larger new pavers patio at ground level.

The slab isn't that big (about 12' square) but it's surprisingly thick (about 2.5'). It's at least 15 years old and is a rock-heavy mix. I think with the right breaker I can do the demo in a day. But what's the right breaker?

  • The biggest my home depot has is a 90lb, 20A electric breaker for $100/day. But unfortunately I don't have any 20A outlets as far as I can tell.
  • They also have a 70lb, 15A breaker for $80/day but I'm concerned that might be a bit underpowered for a thick slab
  • I've called a few other tool rental places, they have air breakers and rock drills, but between tool and compressor rental it'd be at least $200/day

Has anyone done concrete demo and could give me an idea of how much power I'm likely to need? Thanks guys.

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