[AT] Concrete Slip Forms

[George Willer]

Ted,

Some of the old missions in the southwest were slip formed, as were some of
the earlier Indian structures.  Of course the material was abobe rather than
concrete.  This saved the step of casting the bricks and then plastering
over them.  It was much like casting bricks in place.  I think, but am not
sure that Casa Grande, north of Tucson is an example.

George Willer

----- Original Message ----- 
From: <TCHARPE at aol.com>
To: <at at lists.antique-tractor.com>
Sent: Friday, August 13, 2004 8:14 PM
Subject: [AT] Concrete Slip Forms


> The first time I saw this "continuous pour" method used was back in the
> middle  30's
> when OLd Fort Mills, in Marion OH was poured using the slip forms.  It was
a
> double
> row of grain silos.... 8 all together, I think.   This is now known as
> Central Soya Corp.
> that may have changed by now).  You know how they keep changing names.
>
> They had a couple of men walking around the top as they poured working the
> screw
>  jacks to pull the form up.  They poured 24 hours a day for many days
before
> they
> finished.  Had rows of lights around the top that could be seen for miles
at
> night.
>
> This was the talk of the town at that time.   I was only 6 or 8 then.
>
> Ted Harper
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