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Re: Ice Force on Steel Water Storage Tanks

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Bruce;

That's an interesting idea.  Maybe an O-ring filled with anti-freeze.

cmd


-----Original Message-----
From: Parkerres(--nospam--at)aol.com <Parkerres(--nospam--at)aol.com>
To: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Date: Wednesday, March 10, 1999 9:19 AM
Subject: Re: Ice Force on Steel Water Storage Tanks


>In a message dated 3/9/99 3:24:21 PM Pacific Standard Time,
>PMeyer(--nospam--at)HASimons.com writes:
>
><< Basically, you need to be able to resist 100% of the expansion force of
the
> ice.  This means you have to break the ice in compression.  Compressive
> strength of ice is about 375 kPa (54 psi) just at freezing temp, and up to
> 1500 kPa (217 psi) at very cold temperatures.   >>
>
>
>I have no tank experience but will offer the following.  I assume that you
>cannot pour the water in the tank so that is a gap between the water and
the
>wall!  However, could you line the tank with a 2" - 3" (or whatever it
needs
>to be) compressible material that is strong enough to resist the water
>pressure, but flexible enough to compress under the ice pressure?  Just a
>thought.
>
>Bruce Resnick, SE
>Parker Resnick Str. Eng.
>
>
>