Bob
How bout you set the rebar on chairs then pour it all at once.
JOE KG4VBR
>
> From: "Mike Rhodes" <weightdn@adelphia.net>
To: <towertalk@contesting.com>
> Date: 2003/08/10 Sun PM 04:21:24 EDT
> To: "Tower Talk" <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Rebar cage for tower footing
>
> Bob,
> Not a Civil Engineer by any stretch of the imagination but one of the
> reasons for not having the rebar breach the concrete is rust. That exposed
> end will make a super-highway for rust and assuming there is a path,
> eventually there will be no more rebar in your concrete. Instead there will
> be nice 1/2 inch paths with nothing but air - or worse - moisture in them.
> No idea where or when I read it but seem to recall the proper method is to
> put something like paving stones of the appropriate size under the rebar
> such that, when the concrete is poured, the paving stones keep the rebar
> waway from the surrounding earth and themselves become sealed in the
> concrete.
>
> Mike / W8DN
>
> ----- Original Message -----
> From: "Bob Gates" <regates@kingwoodcable.com>
> To: "Tower Talk" <towertalk@contesting.com>
> Sent: Sunday, August 10, 2003 4:11 PM
> Subject: [TowerTalk] Rebar cage for tower footing
>
>
> > I've noted the UST footing design for most/all their towers, and they
> specify a
> > rebar cage with the vertical pieces set approximately 3" above the bottom
> of the
> > footing. This is obviously a clumsy undertaking in the real world,
> because it
> > would entail pouring 3" of concrete in the hole, let it set up, insert the
> cage
> > and continue the pour. After 30 years in the construction business, I've
> seen a
> > few footings poured, and many were designed by engineers who never had to
> > actually install their designs, such as spread footings which are
> extremely
> > labor intensive, and for no reason. To make a long question short, any
> civil
> > engineers out there who see a problem with the rebar cage sitting on the
> dirt
> > floor of the hole and pouring around it?
> >
> > Regards,
> > Bob KG7KW
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
JOE PATRICK
SENIOR PLUMBING/MECHANICAL
INSPECTOR CITY OF BOYNTON BEACH
|