There just isn't enough information in the article to judge the material. My guess is by lowering the amount of cement they're reducing overall compressive str

There just isn't enough information in the article to judge the material. My guess is by lowering the amount of cement they're reducing overall compressive strength, but by including fibrous materials they're resisting cracking. The reported "rubbery" behaviour means the material is overall less stiff and I'm not sure that does good things for development lengths or reinforcing required. I don't know what to make of the statement that it's "impact proof". Steel yields and concrete crushes, but I guess this is a high strain material. My initial thought was that it sounded like a good paving material if its sufficiently stiff...