ᐅ How to Smooth Out a Grooved, Rough Garage Floor?

Created on: 13 Apr 2022 13:04
R
regu123
Hello,

In my garage, there is a very rough concrete floor that is 3 years old. It has many grooves about 5mm-10mm (0.2-0.4 inches) deep, as if the previous owner wanted to increase grip for the tires.

I would like to have a neat, smooth surface.

Do you have any tips on how I can achieve this? I would prefer to do it myself to save costs.

Thanks!
Marius
R
regu123
17 Apr 2022 13:04
Is it also strong enough to support a car jack and a motorcycle stand?
G
graurock
17 Apr 2022 13:41
regu123 schrieb:

Can it also support a car jack and motorcycle stand?
You could use a board to increase the contact area.
H
henning181
17 Apr 2022 14:29
graurock schrieb:

You could use a board to increase the support surface.
Hello,

that's exactly what I do: a board underneath and then the jack. As I said, no problems so far. Of course, it is important to lay the tiles properly.
KlaRa26 Apr 2022 14:16
Hello "regu123".

The issue you describe is actually not a problem!

A cost-effective solution would be to roughen the concrete surface, even if it seems relatively small, using the shot blasting method. No, grinding or brushing is not sufficient here, as these techniques cannot reach into the depressions of the threshold-like elevations. What we need is a proper bond to a cement-based screed, which will be applied over a bonding agent.

Adequate load transfer for the expected use is achieved at an installation thickness of just 2cm (approximately 0.8 inches). If there is a step at the garage entrance, the concrete surface should be ground flat across the entire width of the garage and possibly 15cm (6 inches) inside the garage to allow for a seamless transition.

The hardened screed must then be finished with a surface protection, for example (don’t forget the bonding agent/primer) with a simple concrete paint applied by roller.

Sure, this is not a solution “for eternity,” but it should serve well for about 5 to 8 years. A coating would also be possible, but from an economic perspective, this area is simply too small (and therefore not cost-effective for a contractor).

But as I have described, it will work.

Regards, KlaRa
R
regu123
26 Apr 2022 14:23
Thank you for your responses! I will get back to you once I have implemented it.