Good find the Deputy,

It,s another concept to explore but not without problems.Lime stone or calcite are also erosive over time even though it,s very durable.Just look at the pyramids in  Egypt and you can have a good example.Cement aditives are not new but keep improving over time until the manufacturers can find an ironclad solution that can be feasible on all front.One concern we should have is the constant erosion of beachfronts all over the world due to sand removal for concrete mixtures.In this case,less is better and any concept that they can come up with which may reduce the use of sand should be a winner.I think Nano-Graphene Platalet in concrete admixture will have a very bright future.By the way,when the hell are we going to hear from Israel.