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Re: Fire Damaged Slab on Grade

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David Fisher wrote:

To be honest, the "chain drag" method goes back so far I seriously doubt
anyone would be willing to take credit for it...
The problem I have always had with this method is that it seems like it would take "a while" to calibrate. That is, if I've never done it before, I'd need to get comfortable with the sound of "good" vs. "bad" concrete.

It's probably just me. I have a hard time finding the location of wall studs using a hammer. Kinda strange for someone who otherwise has a good musical ear, and can sing a passable baritone.

Bill Polhemus, P.E.
Polhemus Engineering Company

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