"gpsman" wrote in message
...
On Apr 4, 2:26 pm, (Dave Martindale) wrote:

I've been breaking it up into smaller pieces, using a single-point
concrete chisel and a 3 pound club hammer. This just doesn't work very
well for breaking 6 inch thick concrete.

Maybe not, but there's a picture of a guy doing just that in my
dictionary under "ambition".
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- gpsman

That brings to mind the movie Shawshank Redemption, given "ambition" and
time, one could do wonders with even a tiny hammer.