Tool for grinding a 45 in a concrete slap?

Question

2 days ago I poured a 12' x 13' concrete slab. When I take the form off in a month, I'd like to put a 45 along the top of all the edges because I don't want kids hitting their heads on the sharp corners (the slab isn't flush with the ground-it's up off the ground about 2'). Anyhoo, is there such a grinding wheel or special tool for doing this? I want to take about 3/4" off the corners. The concrete is 5000 PSI with reinforcing fiber. Any concrete people please advise. Thanx.

Answer 1

rent a 9" grinder with a concrete cup or bowl

Answer 2

Get a concrete saw blade.....I'm sure they come in a size you could use on your circular hand saw.

One thing....if your kid falls and hits his head on that concrete it ain't going to matter if it's sharp or has a perfectly smooth rounded edge.....it's still going to bust their head open....so tell them to be more careful around the patio.

Answer 3

I realize it's too late now, but you could (should) have put a chamfer strip all along the top edge, or finished it with an edger. Anyway, the way to grind the chamfer is with an angle grinder:

http://www.contractorsdirect.com/General...

With a cup-type diamond wheel:

http://www.toolfetch.com/Category--Blade...