First, I'm very grateful to the professionals who provided me with excellent advice regarding the removal of a concrete slab. Now, I need to cut a curve in asphalt which is no more than three inches thick. It was not layed on top of concrete, instead it was layed on shell. My local rental company offers a concrete saw with the appropriate diamond blade for wet cutting, but tells me it will not cut a radius. They did not suggest a demolition hammer and I didn't think to ask at the time. What would be your tool of choice? The curve would be slight for about 80 feet and become more pronouced for another 60 feet.