Real world, put traffic on it same day, no biggie. The article said it was a special variety of asphalt. I'd really like to see the mix design to see what sort of goodies they put in it. Just going from an estimated size, I calculate asphalt is 4" thick. Very minimal banking, right side tires will take a huge beating as will the asphalt. Getting up in those little black marbles will be a wild ride :steering:.