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BBFarm 07-24-2010 05:45 PM

24" Sono-Tube Pour ?
I'm putting a 36" x 36" x 12" footing on top of sandstone rock at the waters edge. Pinned into the rock with rebar and uprights for reinforcing of the 24" x 6' Sonotube to be placed on top.

Before pouring my footing, should I be apply any type of bonding agent on the sandstone first, so that the concrete bonds better?

Thank you in advance.

Thurman 07-25-2010 07:59 AM

I'm not a concrete person, so I cannot help with an answer. I did notice "at the waters edge" though.
Would this be a "moving/running water" situation as in a lake or river? The only reason I am asking is that in my State ALL running/moving water shorelines are governed under the Army Cops of Engineers and ANY structure placed within so many feet of the shoreline of said waters would have to have a permit. I've seen the ACE come back and remove, then charge the site owner for, some expensive re-mods people put in at the shore lines of lakes around here only because a permit was not pulled. David

jomama45 07-25-2010 11:54 AM

In this application, I don't see the bonding agent as necessary, or even much help.

BBFarm 07-25-2010 01:40 PM

Appreciate the reply, that seems to be the general consenus.

Thank you.

BBFarm 07-25-2010 01:44 PM


In our State as well, all permits in place.


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