Greta

This might be more effective when the temp is slightly in the positive or when the sun is melting some ice causing a layer of water between the asphalt and ice layer.

I used this method to clear our driveway when it ice over this year.

I used a regular garden shovel and slid it along the pavement and under the ice as much as possible. Then I pried up pieces of ice. Sometimes this would flick off small chunks and sometimes it would lift several sq ft of ice.

I knocked off the thickest parts by using a 30~ lb steel rod with a pointed end to smash and chip into the ice about 5-6" from the edge. This weakened the ice so that I could pry off pieces with the shovel. If the ice was not too thick then the bar alone would chip off pieces. A pick axe or sledge might have a similar effect. I doubt you'd be able to find a metal bar I had found in the garage from the previous owners, I assume they used it for the same purpose.

Then I shovelled off the ice pieces with a big push shovel into the middle of the yard. This is much easier to do if you cut through the snow bank and form a ramp. It's a bit of shovelling to start with but that little effort will pay off.

I think the key to this method was the small amount of melt/runoff that was between the surface and the ice. Not sure how this would work when temps are well below 0C. Softening the surface with a bit of salt certainly doesn't hurt.

Good luck. It took a total of 6-7 man hours of rather efficient ice breaking (by my judgment) to finish our driveway (about 100 ft long, 10 ft wide).

Needless to say I was tried at the end of the day and my hands, back, and feet hurt.

My husband would have done it but he was down due to back surgery.