Engineers have 120+ years experience building concrete roads. Their methods are built on a vast amount of evidence gathered from thousands of field trials, advanced economic models and millions of man years of combined practical knowledge, The overwhelming evidence is that stronger concrete offers no economic benefits for the vast majority of cases.
If you think hard-nosed engineers are going to be influenced by some dubious marketing material about a gimmick product made by some blokes in a shed in Colorado you have rocks in your head.
