Uneven concrete floor.

[slobroy]

I have a 30x40 pole barn for a shop. It belonged to my father who built it on the cheap. We hauled in gravel aprox. 2 ft all over and then 6-8 inches of concrete. The problem is it's not level at all. He and his buddies leveled it with a 2x4 and eyeballed it level. well it's so bad a creaper wont roll evenly on it and my bike lift won't sit level either. My question is do I need to get a backhoe and start over or is there other options available? I'm wanting to put a lift in but I have to fix the floor first.

 

[dmaic]

I dont know enough about concrete to tell you if it's correctable or not. I remember watching a show on HGTV where someone had an uneven floor poured in their garage and they were able to pour on top of it. I would say even if you could pour enough on top of what you have to make it even it would still be pretty pricey as thats a large area. However, if youre just trying to get your lift level you could use steel shim packs to level it up but thats assuming the lift is intended to be permanently secured to the concrete.

 

[zporta]

How far out of level are you talking?

You could always pour another slab on top, or if its not super out of level there is a thin patching material that can be applied to level the floor

 

[slobroy]

It's pretty bad. My bike lift high centers and wont roll hardly at all.

 

[redneckcharlie]

Hey guys, first post. Call your local concrete supplier and see if they carry self consolidating concrete. It runs about 90/yd here, works very well. Your manned door heights might have to be adjusted, but that's easy considering the alternative of tearing out and reporing. There's some decent videos on YouTube showing how it works.

 

[Ch3No2]

Sandblast and Ardex Feather Finish....I have done complete Supermarkets with the stuff and comes out just fine
http://www.ardex.com/cms\Assets\Products\Documentation\ard-sdf-tech-us-e.pdf

 

[Edger]

Diamond grinding is a must to flatten the peaks while the valleys will have to be filled with a leveling patching compound. The more you flatten, the less leveling compound you will use.

You need to take care for two things - first the quality of the leveling material and second the preparation of the low areas so that the material will stick.