Hi Rob,
In the trades, the tool is referred to as a "demolition hammer". They are
offered in various weights... 45#, 60#, 90#. Years ago, I had a 6'x9' concrete
slab I needed to replace. It was around 8" thick, and I rented a 60# electric
demo hammer. It took a few one hour sessions to get it done (it vibrated the
bejesus out of your wrists and forearms). It won't make much difference what
the mix was. I'm guessing you should have it done in a half hour or so.
vy 73,
Bryan WA7PRC
Rob Santello wrote:
> I
> remember you
> guys talking about using a jackhammer to remove the
> top down a few
> inches below grade to fill with top soil and throwing some
> sod over it.
> Has anyone actually done this? How difficult is it to bust
> a solid block
> of concrete like this. I don't know what concrete mix was
> used for the
> base if that even makes a difference. If possible, how long
> would it
> take and is a standard size electric jackhammer from a
> rental place
> large enough to do the job?
>
> Thanks again for any thoughts or suggestions!
> --rob
> K6DQ
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