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re: is there a standard depth for house slabs

Posted on 5/30/18 at 3:13 pm to
Posted by JusTrollin
Member since Oct 2016
234 posts
Posted on 5/30/18 at 3:13 pm to
I've drilled and broken out a few post tension slabs. The tendons are anywhere from 1/2" to 7/8". You are not going to simply just drill through one with a concrete bit.

Also if you so happen to possible cut one from some other means it may pop out the slab a few inches on either end, not a major deal.
This post was edited on 5/30/18 at 3:14 pm
Posted by junkfunky
Member since Jan 2011
33962 posts
Posted on 5/30/18 at 3:15 pm to
Makes sense.

I've only dealt with it in commercial applications and it can be pretty catastrophic.
Posted by civiltiger07
Baton Rouge
Member since Dec 2011
14037 posts
Posted on 5/30/18 at 10:32 pm to
quote:

You are not going to simply just drill through one with a concrete bit.


This! If you feel some resistance while drilling don’t force the bit. A concrete bit will not cut a tension strand on its own. Be smart take your time.

ETA: but it sounds like your slab Is probably not post tensioned. If you haven’t seen those circles on the side.
This post was edited on 5/30/18 at 10:34 pm
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