Civil engineer wanted

Hi, I need a civil engineer or somebody who knows the civil engineer to help me out with the foundation in the new automotive area to ACCURATELY measure how thick that slab is. They will be financially compensated for the time and service

Drill a hole? Then keep drilling? This is fairly cheap and easy to do. If you want a nondestructive method there are instruments for this for $1K or so. Might be worth having that around the space for future stuff too.

I you need a geotechnical engineer a friend said he could send me names monday when he gets to work

We have done this. Consistent 4.25-4.5”.

There is the theory that the backside of the drill hole blows out. So you don’t really get the actual depth when measuring.

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Would a borescope help, like one with a side facing camera? Could look at the side of the hole at the bottom. I have a cheap one the space is welcome to use if there’s not one around already.

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That’s a great idea

In case it’s not thick enough is cutting out squares and pouring thicker footings an option?

That’s the current option that it looks like we’re heading towards

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How thick does it need to be for this use case? I’m guessing there’s a number from the manual or something?

Depends on the manufacturer/model.

Bendpack has an outline of specifications including their recommended retrofit pad specs.

Just as a side note a power hammer for blacksmithing has similar concerns/needs.
Depth of concrete is a serious consideration for installing one.

@sixshot357? Or anyone else know how thick the equipment calls for?

@TBJK is that the manufacturer you mentioned above?

I can’t speak for what lift Auto voted for.

The original drawings of the building spec 5” concrete with #3 rebar on 18” CTC

Here is what Bendpak calls for.

Rotary spec

Then there are other Manufacturers that run the gamut of thickness.

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