Grinding concrete slab- worth trying?

[cwr]

Hi folks

I have a concrete floor for a garage that was poured late last year, it unfortunately had some rain on it before it was set so the top surface is not great. Probably be quite dusty when I finally get a roof over it and it eventually gets a chance to dry out. 

I'm wondering if it's worth trying to grind back, my local hire place has this sort of machine:

Is this the right approach to improving it? Or something else? Or maybe I'm over thinking it for a garage and should just live with it.

Thanks

[Nickfromwales]

Mat the force be with you, as grinding concrete with that wonderful looking machine, is a bastard of a job. Check how many 'teeth' you'll go through before taking the leap.

[Roger440]

You want one with diamond discs. That looks like one with the "scabbling blocks". Useless for what you need.

 

The ones with diamond discs seem rather hard to hire.

 

How big an area. I did a double garage sized area of very rough tamped concrete with a Hilti hand held one. Bloody hard work mind!

[Nickfromwales]

1 hour ago, Roger440 said:

You want one with diamond discs. That looks like one with the "scabbling blocks". Useless for what you need.

 

The ones with diamond discs seem rather hard to hire.

 

How big an area. I did a double garage sized area of very rough tamped concrete with a Hilti hand held one. Bloody hard work mind!

Arms like a fiddler crab afterwards?