Construction methods lead to failure or success when laying asphalt over existing concrete. It's all about cracking, and if that can be minimized, success can be achieved. Good crack repair in the concrete is a must. Then, a good bituminous tack coat prior to applying the binder course.
Finally, before laying the surface, the seams in the binder course need to be sealed. For that I've seen fresh bitumen and even a sort of "tape" that is placed before the surface course is laid.
This practice will keep water out, to the best extent possible.
Poor drainage probably accounts for 95 percent of all pavement failure, in my experience.
Of course, I'm all about using recycled asphalt whenever possible. It works fine for a base course and it works fine for a binder course.