Building and construction materials in the nature of pre-cast duct bank modular concrete encased systems containing conduits comprised of pre-cast concrete structures forming conduits designed to protect and consolidate cabling or fluids between service connections such as to and from buildings, electrical substations, data centers, Oil and Gas and Chemical processing plants, power generating plants, waste water treatment plants, airports, food processing facilities, hospitals, commercial and industrial buildings, sub-grade electric grounding systems, surface transportation crossings, waterway crossings, electric utility network systems and telecommunication utility network systems.