The strength comes from the rebar itself. The ONLY reason it is wired
together is to hold everything in place once the concrete goes in. The
wire by NO MEANS provides any other support...its only tie wire!
As you fill the hole, and if you could insure that the rebar would stay
put, you could lay it in as you fill the hole....this would be rebar in
free space or RBi! HA HA.
The curb and cutter machines I sell will place the rebar inside the mold
as the machine works it way down the street. No tie wire...
Dino - K6RIX
dino@k6rix.com
> -------- Original Message --------
> Subject: Re: [TowerTalk] Bottom Section In Concrete and Bolt question
> From: "Mark Robinson" <markrob@mindspring.com>
> Date: Thu, July 05, 2007 12:20 pm
> To: "Dino Darling" <dino@k6rix.com>
> Cc: <TowerTalk@contesting.com>
>
> When I poured the base for my guyed 60 foot Rohn 25 in Illinois I just
> placed straight lengths of rebar in the hole as I was pouring the
> concrete.
> Was this OK or should I wire up some sort of frame?
>
>
> Mark N1UK G3ZZM
> ----- Original Message -----
> From: "Dino Darling" <dino@k6rix.com>
> To: "Gary 'Joe' Mayfield" <gary_mayfield@hotmail.com>
> Cc: <towertalk@contesting.com>
> Sent: Thursday, 05 July, 2007 2:57 PM
> Subject: Re: [TowerTalk] Bottom Section In Concrete and Bolt question
>
>
> > It is my educated OPINION that you should have rebar within 6" of the
> > circumference of the concrete pier. The purpose of the rebar is to
> hold
> > the concrete block together and should NOT be tied to the tower legs.
> >
> > Grade 5 bolts should do it nicely. At one time I did some
> investigating
> > on stainless steel hardware and remember there are stronger types,
> but I
> > would have to really dig to find that info again. I believe standard
> > stainless steel would be too soft for use in joining tower sections,
> but
> > don't quote me.
> >
> > Use what Rohn uses!
> >
> > Dino - K6RIX
> > dino@k6rix.com
> >
> >
> >> -------- Original Message --------
> >> Subject: [TowerTalk] Bottom Section In Concrete and Bolt question
> >> From: "Gary \"Joe\" Mayfield" <gary_mayfield@hotmail.com>
> >> Date: Thu, July 05, 2007 10:43 am
> >> To: <towertalk@contesting.com>
> >>
> >> I'm about ready to start a tower project and need some advice.
> >>
> >> I have a 60 foot Jontz tower in good condition. I plan to put the
> >> first 5
> >> feet into the hole with gravel at the bottom so it will drain.
> >>
> >> 1. Do I need a rebar cage in the concrete around the portion of the
> >> tower
> >> set in concrete?
> >>
> >> 2. When taking the tower down I broke many of the bolts holding it
> >> together. They are unique and unavailable. What grade/type of bolts
> >> do I
> >> want to use to replace them?
> >>
> >> I am not sure how much of this tower I am putting up and may stop as
> >> low as
> >> 35 feet. The tower will be supporting my satellite antennas (2mtr
> >> yagi, 70
> >> cm yagi, L band helix, S band BBQ grill dish). The height will
> depend on
> >> how much of the sky can be seen over the nearby trees. I will not be
> >> climbing this tower as it will be placed by a crane and the antennas
> >> put on
> >> with a bucket truck.
> >>
> >> Thanks and 73,
> >> Joe kk0sd
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
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