Concrete-Encased Electrode
Concrete-Encased Electrode
(OP)
Hello, I have a question on using the foundation rebar as one of the grounding electrodes. The code specify the use of a concrete-encased electrode when the concrete foundation is in direct contact with earth and other restrictions which are not in question.
Should this method be suitable when the concrete foundation is not in direct contact with the earth, like when a vapor barrier exist between the foundation and the earth?
Regards
Should this method be suitable when the concrete foundation is not in direct contact with the earth, like when a vapor barrier exist between the foundation and the earth?
Regards






RE: Concrete-Encased Electrode
RE: Concrete-Encased Electrode
So, not only would your vapor barrier isolate the electrode from the ground you're trying to bond to, it would also dry the concrete out making the concrete a bad conductor.
RE: Concrete-Encased Electrode
Don Phillips
http://worthingtonengineering.com
RE: Concrete-Encased Electrode
Hmmm.... not sure I agree with that....
RE: Concrete-Encased Electrode
To further clarify, the discussed reinforced block foundation wall sitting on an unreinforced footing, and if this block wall is waterproofed, no one felt this reinforcing was intended to be the electrode since it would not be nearly as effective as a reinforced footing with no vapor retarder.
Just leeting you know what we discussed in Central Ohio.
Don Phillips
http://worthingtonengineering.com
RE: Concrete-Encased Electrode
I had interpreted "waterproofed" in a different way. The manner of waterproofing you describe, though, would probably render a Ufer ground ineffective.