I wouldn't recommend it, anon67403. Typically, asphalt binder is utilized at about 4-6 percent, depending on aggregate content and the design conditions. By spreading it around on top of your grinds, you are going to lack uniform coating and create cohesion voids. Plus if the binder your using is soft, it will continually be sticky, and then you'll be getting new tires. Asphalt is blown/sprayed on aggregate in massive mixing chambers for this reason.