Graphene Adds Several Benefits for 3D-printed Concrete

Brief 

Matt DiBara, a fourth-generation mason, examines how graphene can be used as reinforcement for 3D-printed concrete. “With the added benefits realized by adding graphene to the mix, 3D printed concrete promises to empower a revolution in safe, reliable, and affordable housing,” DiBara writes.

Insight

Because the process for 3D concrete printing does not involve concrete forms, normal means of reinforcement like rebar and wire mesh cannot be used – graphene is proving to be one of the more promising additives for printed concrete.

3D concrete printing definitely makes the list of developing technologies that are changing the world of construction. Its promise of reducing construction costs, construction time, and construction waste has inspired many builders to explore it as an alternative to traditional concrete block and poured concrete processes.

One of the latest developments in 3D concrete printing involves using graphene to reinforce concrete. While tests on the effectiveness of graphene are ongoing, testing to date has shown that graphene is very effective in improving the mechanical properties and durability of printed concrete.

The Basics of 3D Concrete Printing

3D printing, regardless of the material being printed, begins by creating a 3D model of an object within a computer. Software then directs a 3D printer to extrude a filament material in a pattern that is used to create the model in the real world.

With 3D concrete printing, the printer is guided by a computer to extrude concrete in the shape of walls, stairs, or other structures that normally would involve the laying of concrete blocks or the creation and filling of concrete forms.

The process can be used to prefabricate components of a building that are transported to a site for installation or it can be brought on-site to construct walls and other components in their intended location.