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Treatment for potentially expansive soils (was RE: Have you heard of watering your foundation?)

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Have you heard of the electro stabilization of soils?  Apparently the rows
of small diameter holes are drilled into the ground and are filled with a
special solution, then cathodes and anodes are inserted in them and the
pulsating and sign alternating current is released. Basically, charged soil
particles (ions) travel between cathodes and anodes and various chemical and
electro-chemical processes occur (if memory doesn't fail me - electrolysis,
eletrosomosis and electrophoresis (sp?)).  As a result, the soil around and
between cathodes and anodes becomes practically watertight and rock hard
with compressive strengths of up to 5 - 7 MPA

I remember that in rural areas of Russia they used this method for parking
lots where they stored heavy agricultural equipment (no concrete or asphalt
paving).  The area stayed rock hard and dry through months of heavy rains.

Sasha Itsekson, SE

From: "Eric Green" <EGreen(--nospam--at)>
To: <seaint(--nospam--at)>
Subject: RE: Have you heard of watering your foundation?

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I have heard it as gospel that lime does not work for structural
foundations, despite the fact that the highway guys seem to think it
works quit well. I think the real issue might be cost rather than
performance. The depth to constant moisture content in Houston is
typically 8-14 feet, but of you could stabilize the upper 5-6 feet you
would get rid of most the movement. The clay itself goes down 4000 -
6000 feet (in Houston), so piles to bedrock are a relatively expensive


Eric Green=20

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