Me, for one. They have been able to make far superior concrete for years, and asphalt, but it would radically change the entire market so it has been blocked at every turn. It’s more money of course, so builders won’t pay for it because they will be long gone before regular concrete or asphalt breaks down, but municipalities are mostly union and they have fought it tooth and nail to keep it from being used. They use the excuse of initial cost but the real fact is they will lay themselves out of a job without the repair and replacement work they do also.
I don't know if you know the roads of NYC but I can't see ANYTHING lasting more than 10 yrs on The Brooklyn Queens Expressway between the Kosciusko bridge and the Varranzano Narrows.. Nothing. Ever. I am not being sarcastic or ironic, I CANNOT believe.