Serpentine concrete was used for the floor of the radiation
shield of the Enrico Fermi atomic power plant which was the first
full-scale Industrial fast-reactor power plant in the USA, and laboratory
investigations were carried out for this purpose. Comprehensive
investigations were also carried out in connection with
the construction of concrete shielding structures for the nuclear
power reactor (NPR) at Hanford in the USA (Davis, 1972).