The company I work for makes a material that uses very similar technology. Different sizes of beads give the product some really cool handling characteristics.
However, I don’t see it for something huge scale like concrete. Concrete is essentially the mixing of a bunch of natural materials with a small amount of manufactured admixtures for specific characteristics.
I can’t imagine how you would scale up sphere production and ship it globally to replace naturally occurring products that are merely dug out of the ground, heated, crushed and packaged
Additives to the 1/2/3 common concrete mixture is common- like fiberglass, Styrofoam ( used in shooting ranges!) and poly beads of varying shapes is not what these idiots are talking about- seems they are replacing relatively inexpensive Portland cement ( CaO, SiO, AlO) with petroleum based stuff ( polymers and carbon nano stuff).
Likely will be IR degradable and unstable in many environments, just what we need.
Concrete has lasted since the Romans first used it in the 1st century BC ( yes, Before Christ, not BeforeCommonEra).
Concrete is a fascinating CE topic.