If you stab the concrete with a shovel with a foot
of water on top, won't you mix the water into
the concrete?
Excess water makes concrete weak.
Tom - N1MM
----- Original Message -----
From: "Jim White" <k4oj@tampabay.rr.com>
To: "Tom Wagner" <tom@n1mm.com>; "David" <k4zzr@bellsouth.net>;
<towertalk@contesting.com>
Sent: Sunday, July 07, 2002 10:06
Subject: Re: [Towertalk] Hit water digging hole - advice?
> As the concrete is going in I always continuously stab the pour with a
round
> point shovel - just to make sure there are no voids created...
>
> I really doubt you need worry about pumping the water - the concrete WILL
> displace it - "been there done that" - the displaced water however needs
to
> be guided to wherever you want it guided to - or - the alternative is to
> pump it to where you want it to end up....fortunately the few pours I have
> had water in the hole were in locations near a suitable dumping ground for
> the overflowing water and a trench was simply dug to aid in pointing it in
> the right direction...
>
> K4OJ
>
>
>
>
>
>
>
> ----- Original Message -----
> From: "Tom Wagner" <tfwagner@snet.net>
> To: "Jim White" <k4oj@tampabay.rr.com>; "David" <k4zzr@bellsouth.net>;
> <towertalk@contesting.com>
> Sent: Sunday, July 07, 2002 9:51 AM
> Subject: Re: [Towertalk] Hit water digging hole - advice?
>
>
> > I'm sure the driver of the concrete truck will have seen
> > this before. Offer him some money to help you pour, and
> > you'll get his advice for free.
> >
> > My guess is that Jim is right, but I'd think about pumping
> > the water out after you have put a foot or two of the
> > concrete in. You'll want to punch down the concrete to
> > get the air out long before the hole is full. Have you ever
> > pushed a 2x4 through 6' of concrete?
> >
> > Just make sure you have a pump on hand that can clear
> > the hole in 5 min or so. Then you have options.
> >
> > 73 & gl,
> >
> > Tom Wagner - N1MM
> > Check out the N1MM Free Contest Logger at
> > http://www.N1MM.com
> > http://groups.yahoo.com/group/N1MMLogger
> > No Yahoo membership required.
> >
> >
> > ----- Original Message -----
> > From: "Jim White" <k4oj@tampabay.rr.com>
> > To: "David" <k4zzr@bellsouth.net>; <towertalk@contesting.com>
> > Sent: Sunday, July 07, 2002 09:36
> > Subject: Re: [Towertalk] Hit water digging hole - advice?
> >
> >
> > > I would leave it alone....sounds like it is slightly oversized
> > already....as
> > > far as aesthetics goes - be prepared to form a "top" where the slab
> > extends
> > > above the ground....I would not pump any standing water out - I would
> let
> > > the concrete displace the water - be prepared for the "run off" as it
is
> > > kicked out of the hole by the concrete.
> > >
> > > 73, GL
> > >
> > > Jim, K4OJ
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "David" <k4zzr@bellsouth.net>
> > > To: <towertalk@contesting.com>
> > > Sent: Sunday, July 07, 2002 9:03 AM
> > > Subject: [Towertalk] Hit water digging hole - advice?
> > >
> > >
> > > > We dug the 5'x5'x6' hole for the tower Saturday and have the
concrete
> > > truck
> > > > coming Monday morning. QTH is south Florida, soil is a dark loamy
> > > > consistency with plenty of sand content. The sides seem to be
holding
> > up
> > > > and the moment . We didn't notice that we had hit the water table
> until
> > > we
> > > > were almost 6' down because it was just a trickle. I checked the
hole
> > > this
> > > > morning and I've got a full foot of water in the bottom now. I'm
> > worried
> > > > the sides might start caving in between now and tomorrow. I
figured
> I
> > > > would pump out the water when the concrete truck gets here, but now
I
> > > wonder
> > > > if I should try to keep pumping it out between now and Monday or
just
> > > wait.
> > > > One thought is that if I pump out the water now, the spot water the
> > water
> > > is
> > > > coming in might eat away at the sandy soil even more as it refills
the
> > > hole,
> > > > the other thought is that I should pump it out now so it doesn't
> soften
> > > the
> > > > four sides and cause them to fall in. Obviously, any QUICK
thoughts
> or
> > > > suggestions would be most welcome.
> > > >
> > > > 73,
> > > > David, K4ZZR
> > > >
> > > >
> > > > _______________________________________________
> > > > Self Supporting Towers, Wireless Weather Stations, see web site:
> > > http://www.mscomputer.com
> > > > Call 888-333-9041 to place your order, mention you saw this ad and
> take
> > an
> > > additional 5 percent off
> > > > any weather station price.
> > > > _______________________________________________
> > > > Towertalk mailing list
> > > > Towertalk@contesting.com
> > > > http://lists.contesting.com/mailman/listinfo/towertalk
> > > >
> > >
> > > _______________________________________________
> > > Self Supporting Towers, Wireless Weather Stations, see web site:
> > http://www.mscomputer.com
> > > Call 888-333-9041 to place your order, mention you saw this ad and
take
> an
> > additional 5 percent off
> > > any weather station price.
> > > _______________________________________________
> > > Towertalk mailing list
> > > Towertalk@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/towertalk
> > >
> >
>
|