Concrete and rebar cage a good ground?
Concrete and rebar cage a good ground?
(OP)
I haven't delved into the issue much, but now we have an issue here as to whether the rebar cage inside of a concrete column sunk 30 ft into the ground is a good ground. If the conrete is wet, I can see how it would be, but if for some reason the dirt dries out, my suspicions are that the dry concrete would not provide a path from the rebar cage to earth. Anyone checked into this issue?






RE: Concrete and rebar cage a good ground?
Search on "Ufer ground."
RE: Concrete and rebar cage a good ground?
Look in the Green book from IEEE. Depth of the ground is nor nearly as important as the width (how spread out) the ground is.