This article will explain the Ufer ground and the causes of concrete
cracking (i.e. poor implementation)
http://www.comm-omni.com/polyweb/ufertower.htm
Doug
>-----Original Message-----
>
>This is an enduring myth, isn't it? What seems to
>get neglected from the discussions is that
>concrete is already a conductor, with or without
>the rebar. One of the points of the Ufer ground
>system is that the whole outer surface of the
>concrete, wherever it touches the ground, is a
>ground electrode, and the surface in contact with
>the ground is measured in square feet, not square
>inches.
>
>As you said, Dave, where's the evidence for
>lightning-induced explosions, or spalling, or any
>of that, in a properly-constructed base? That's
>why it was used to protect hundreds of tons of
>munitions in lightning-prone Arizona Quonset huts
>in WWII. Thanks. Mr. Ufer.
>
>73,
>Tom, KT9OM
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