Garage Floor Levelling

[Aragorn84]

My garage floor is extremely uneven. The surface is rough and broken up in places, and also the floor slopes down maybe 50mm or so over the length of the garage.

I'd quite like to fix it, and i've heard of self levelling compounds etc, but i've no idea if these are suitable for such an environment where you might be using axle stands and jacks etc.

Can anyone give any pointers how to approach this?

Ideally i would like to get it level and smooth, then either applying an epoxy finish or maybe tile.

I've attached a photo, its not the best but gives some idea of the unevenness. There are worse areas under the car too.

 

[noseall]

My garage floor is extremely uneven. The surface is rough and broken up in places, and also the floor slopes down maybe 50mm or so over the length of the garage.

I'd quite like to fix it, and i've heard of self levelling compounds etc, but i've no idea if these are suitable for such an environment where you might be using axle stands and jacks etc.

Can anyone give any pointers how to approach this?

Ideally i would like to get it level and smooth, then either applying an epoxy finish or maybe tile.

I've attached a photo, its not the best but gives some idea of the unevenness. There are worse areas under the car too.

There are few remedies, which are applied thinly, that will not eventually delaminate or break up. A granno screed bonded to the existing with SBR slurry may work. Not easy though and would put a minimum of say 30mm + on the garage surface.

 

[Aragorn84]

Yeah that was my worry, and 30mm at the high end near the door means maybe 80mm or more at the lower side, which given the roof pitch will make a real dent on the headroom right where its needed the most.

The rear wall of the garage is ~5 feet high, and its a monopitch roof at around 15-20 degrees

Could it be worth grinding down the high spots first to get something without such a taper before applying the screed?

I guess the proper fix is in with a concrete breaker and then pour a new slab...?

Whats the likely/approximate costs of the screed+SBR (lets say assuming it ends up at 60mm average depth) over an area of 4.5x5.5m vs laying a new slab?