Re: Is there a way to cut through concrete slab without making a mess?

There is no new technology to cut through concrete? No laser beam cutter or
something along that line?

MC



"~^Johnny^~" <nospam@xxxxxxxxxxxxxxxxx> wrote in message
news:h9jge1huj7bej1j1fgdmh68n5kr48irstc@xxxxxxxxxx
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> On Wed, 27 Jul 2005 22:29:38 -0400, "miamicuse"
> <nmbexcuse@xxxxxxxxxxx> wrote:
>
> >I am exploring cutting a 36"x36" hole through the 8" concrete slab
> >in my kitchen to access a sewer line for repair.
> >
> >Called a few concrete contractors and one told me he will use a
> >jackhammer to punch the hole (cost $300) and the other told me he
> >will use a saw (cost $500). The jackhammer will probably spray dust
> >in all directions and shake loose some copper pipes in walls. The
> >saw will make a clean cut according to the contractor but he told me
> >"imagine starting a motor cycle immersed in a mud puddle"...this
> >does not sound promising. Is there a way to do this to minimize
> >dust and mess? I am willing to pay a bit more for a cleaner
> >procedure.
> >
> >Also, if they use a saw, does it mean it is a big mean machine they
> >will move from my door to the kitchen and along the way it may
> >scratch the tiles along it's path?
>
>
> Been there. Worst plumbing job I had was when I replaced cast iron
> DWV in a laundromat w/concrete floor. Had to dig a ditch. Hired a
> helper and used two jackhammers. Couldn't fool around - had to get
> the job done.
>
> A 90 lb hammer is definitely faster, because you ain't taking a 3x3
> foot slab out in one piece, anyway. The hammer on the concrete,
> and acetylene on the rebar. There is going to be dust. Wet saw will
> minimize the airborne dust, but will make much mud. Very messy,
> and worse to clean up.
>
> Yes, they should hang dust curtains and use positive ventilation.
> This keeps the mess in the work area.
>
> Of course, you could chisel it out by hand... ;->
>
>
>
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> --
> -john
> wide-open at throttle dot info


.

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