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Determine Slab Thickness

As you push with a hammer drill you sometimes feel the concrete break away at the bottom of the hole, it goes from solid to flexible, and I suppose he may know when he is close by feeling that break point. But I can't do it, I mean I'm drilling with a hammer drill not a smooth instrument.

I drill straight through with a 1/4" or 3/8" bit, fish the bottom with a wire bent on the end, and fill the hole with epoxy or polyurea.
JD Grafton
Concrete Answers for Flooring Problems

Messages In This Thread
Determine Slab Thickness - eaadams - 06-20-2012, 09:46 AM
RE: Determine Slab Thickness - CC Solutions - 06-20-2012, 03:07 PM

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