Thanks for the reply. So if I understand you correctly you're saying the high loads generated by F1 tyres would effectively rip it up?
After considering it, a 40 ton truck stopping hard is going to apply more force than a F1 car accelerating, so it does not sound right. Wish I had shut up now
Just looked up the tec sheets on it and found this.
It seems they allow for the surface coating to be peeled off anyway, which is what I thought would be the concern in my post, but the "rubbering in" F1 cars spend so much time doing nullifies the drainage, and it seems there is not so much grip for the corners, acceleration or slowing.
However, there are some disadvantages to be offset against these favourable aspects:
- The open structure of ZOAB can become blocked due to dirt, exerting a negative influence
on the advantages offered by the asphalt mixture. The cleaning of ZOAB should
therefore be a point of attention.
- ZOAB contributes less to the construction integrity of the road surface in comparison to
dense hot-rolled asphalt (DAB).
- When the road surface is dry, the maximum braking deceleration is less than is the case
for dense asphalt. Th·~ is because the coarser macro texture reduces the contact area
between tyre and road. In addition, the stone skeleton on the upper surface of newly laid
draining asphalt is still covered by a bitumen fIlm, thereby reducing the initial friction.
After a period of time, this fIlm wears off, depending on the volume of traffic. Measurements
have shown that the average deceleration while braking with locked wheels