It definitely stiffens the pole, and prevents water from rusting it out from the inside. While I might use the stiffening effect to get a couple of extra feet out of the ground, I wouldn't start downsizing your poles because you poured concrete in them. I think it would be fair to compare the effect of adding concrete to going to SCH 80 pipe. Unfortunately, I don't have any good structural analysis to back that up, but if we have the extra concrete, we try to fill the pole. One of these days if I get a research grant, I'll do some deflection tests to try and better quantify this.
R. Walters r...@solarray.com Solar Engineer On Jul 26, 2011, at 12:49 PM, toddc...@finestplanet.com wrote: > Wrenches, > > > Fact or fiction: Adding concrete to the inside of a pole mount pipe makes it > stronger. > > > Thanks, > > > Todd > > > > > Sent from Finest Planet WebMail. > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
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