[TowerTalk] Rebar & Concrete

Barry Kutner w2up@mindspring.com
Fri, 6 Nov 1998 10:20:05 +0000

On  6 Nov 98, Jim Heath <jimheath@foothill.net> wrote:

> -----Original Message-----
> From: Robert L. Shohet <kq2m@mags.net>

> >I am getting ready to pour concrete for my Rohn 45 towers bases and guy
> >anchors and wondered about the necessity of keeping the rebar away from
> >the dirt?  (Towers to be 100' and 130').
> Yes, unless you want the rebars to rust away!  You can use pieces of
> concrete blocks.
> >
> >
Can someone explain to me why the rebar WITHIN the concrete doesn't 
rust? Concrete always retains moisutre and absords it from surrounding 
soil, doesn't it?
Rust is oxidation. Being underground, whether in concrete or soil, 
doesn't the minimal oxygen content under ground  retard the rust 
Barry Kutner, W2UP                            Internet: w2up@mindspring.com
Newtown, PA                                   Frankford Radio Club


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