With numerous U.S. bases across the Middle East damaged by Iranian bombardment, the Air Force is pursuing mobile 3D concrete printers that could rapidly construct protective buildings. The effort centers on giving military engineers a faster way to replace vulnerable tents, trailers, and conventional structures.

The Air Force’s Small Business Innovation Research solicitation delivered a blunt assessment: “Put bluntly, the Air Force has spent decades building exquisite kill chains while too often housing the airmen who sustain them in tents, trailers, and flat-walled structures that were never designed for the threat environment now arriving overhead.”

The solicitation is scheduled to close in January 2027. Structured as a direct to Phase II project, it indicates that the service wants to move quickly toward a practical construction system that military units can deploy and operate in demanding environments.

Concrete printing uses machines to deposit successive layers of material until a structure takes shape. The technology is already gaining traction in commercial construction, but the Air Force is focused on whether it can produce buildings capable of protecting personnel from missiles, drones, blast waves, and fragmentation.

The service has previous experience with the technology. In 2023, the Air Force used 3D printing while rebuilding hurricane damaged Tyndall Air Force Base in Florida, and a Maryland Air National Guard civil engineer squadron is developing its own mobile concrete printer.

The new project seeks to enable “military engineers to rapidly print protective structures using automated or semi-automated construction workflows, reduced skilled labor, and locally available cementitious materials where feasible,” according to the Air Force. That concept combines mobility, automation, and materials that may be available near deployed locations.

Existing concrete printers, however, have not fully answered the survivability problem confronting the service. Hundreds of U.S. military buildings across eight Middle Eastern countries were damaged by Iranian attacks, according to a September 2026 report from the Department of War Office of the Inspector General.

Image Credit: DoW

The solicitation said “the existing state of the art has not yet fully addressed the combined problem that matters most for combat survivability: printable expeditionary materials, field-executable operator workflows, and structure geometry deliberately optimized to mitigate blast-wave behavior and fragmentation effects.”

The project will examine cement like materials for strength, adhesion, and the availability of local components. The Air Force is not simply seeking a printer that can produce walls, but a system that can consistently create protective infrastructure under operational conditions.

Construction geometry will be another central part of the work. The project calls for designs “that improve survivability beyond conventional flat-wall construction, including shapes intended to reduce blast reflection, limit pressure amplification, interrupt fragmentation paths, and improve internal occupant protection.”

Those requirements place the emphasis on more than printing speed. The Air Force wants structures shaped to manage the effects of bombardment better than conventional flat wall buildings while providing greater protection to the personnel inside.

The ultimate objective is a mobile concrete printer that can erect structures rapidly and consistently while being operated “in austere conditions by lightly trained military personnel.” Such a capability would reduce dependence on large numbers of skilled construction workers at deployed sites.

The Air Force also sees “substantial” applications outside military construction, including critical infrastructure and humanitarian relief. At the same time, the solicitation acknowledges that commercial adoption would probably require numerous approvals involving matters such as building codes.

The service described the desired transition plainly: “transition the capability from ‘we can print something interesting’ to ‘a civil engineer unit can deploy, set up, print, inspect, and use protective infrastructure fast enough to matter.’” The project is therefore aimed at producing usable protection, not another impressive demonstration that stays parked in the testing phase.