Is that like ground up pieces of asphalt? Did you spread it like gravel in the driveway?
My dad knew the county roads supt and he let my dad have some asphalt left over from road surfacing that was still hot enough that one could shovel it into dads car trailer and haul it home a short distance and use it.. We put it on the dirt floor of a chicken house and I used a something to beat it flat ..May be 4 inches thick or so,,, it was warm enough that it smoked or steamed .. If it hardens back up after being hot to use for road work ,,you cant use a pick to break it apart..