Concrete resurfacing?

[mopar250]

Hello all,
I just purchased a new building that has a framed portion in it that I am intending on finishing for a shop. One of my first issues to take care of, is the uneven concrete floor. I have read about some different leveling products and how they are used, but i'm a bit lost on how to pick the correct one, or even if that's what I should be looking at since it is pretty rough on the surface currently. In the end, I want to end up with a smooth floor that I can slide around on a creeper, or move a cherry picker on. It looks to be in good shape below the surface though with no cracks anywhere. I have included some pictures below of what the floor currently looks like. Could someone point me in the right direction?
Thanks!

 

[LegacyIndustrial]

Might try to plane that floor first, using a concrete planer.

Chew up the high spots.




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[lakeroadster]

I'd suggest drilling a few test holes to see how thick the concrete is. If it's really thin you may be throwing good money at bad concrete.

 

[Armorpoxy]

This looks like a job to find someone with a good, heavy diamond grinder, or rent one, and let them go to town. Then, seal or coat it.

 

[mopar250]

Thanks for the reply's, guys. I hadn't considered grinding it down but that makes sense seeing that I haven't seen any of the refinishing products used on such a rough surface. As far as the thickness, I would say an average of 4 inches everywhere.

 

[James-W]

Looks to me like it will take an awful lot of grinding and then a lot of filling in before the floor will be anywhere near level and flat. I would check into the cost of renting the floor grinder and other stuff to do the job and then check into the cost of having the floor ripped out and re-poured. If the cost wasn't too terrible, if it were me, I would certainly at least consider having the floor re-poured. If the estimate would be too high, then grinding and filling in the low spots would be the way to go. But prepared to spend a lot of time on it.

 

[KenC]

I'm in the 'too rough to grind' camp. that first pic looks like the lows may be 1/2 - 3/4"!! Actually the extremely rough texture may aid a topping compound's ability to adhere to the old surface.
I'd carefully check for any extremely high spots and hand grind them if needed.
Then clean it really well, pressure wash at least and coat it with a bonding agent before using a topping compound.

I did something similar on a freeze damaged, elevated, concrete deck/porch a few years ago. It's held up well over 3 winters so far.