I know this is an OLD post, but I had the same question. Until today when I used my disc harrow on my driveway and road. About a quarter mile. It helped but didn't break up the ice. So, for context, my parking area between buildings is 80x80, plus or minus, and flat. Couple feet of snow, cleared, and then it rained. 3 inches or so of slush. Plowed it off and over night it froze solid. Parking, driveway, road to the house all gravel and frozen solid, and as smooth as a hockey rink. Road's crowned so vehicle wants to slide to one side if you're not on top!! I disced the whole enchilada and it helped a bunch. It didn't break up the ice but it grooved it nicely and flaked a bunch of small stuff out. When I went out later the flake had frozen to the old ice and gave me some traction. I DON'T have access to enough sand or salt so this was my only real alternative. It's not a great solution. If there were any hills or other problem areas it might not work at all, but for me it makes the difference between getting out safely or not getting out at all. It worked well enough that I'm going to do it out to the main road.
My harrow is an old set, only about 500 pounds, and the discs have rounded, worn edges.
I have snow tires on my vehicles, but don't want to have to chain up just to get to the well maintained, paved main road coming and going. Not the best solution, but it does help. The attached pic shows one side of the driveway disced, the other slick ice.