Cemex and Cobod can now use ready-mixed concrete in 3D printing

Images courtesy of Cemex / Cobod

Danish 3D printer maker Cobod has teamed up with Mexican cement giant Cemex to design a method of using conventional ready-mixed concrete during the 3D printing process. The companies claim it would save time and money compared to current 3D printing methods and traditional construction.

Currently, Cemex said 3D printing typically uses specialized and expensive mortars, while its D.fab admixture turns concrete into a malleable material.

The method was used by home builder Power2Build in their construction of Angola’s first 3D printed concrete house in Luanda (pictured).

Henrik Lund-Nielsen, Founder of Cobod, said: “Cobod started construction 3D printing in 2017 and 3D printed Europe’s first 3D printed building, where we made the concrete recipe ourselves. .

“We had to use a lot of cement to make the material work, so our recipe wasn’t as effective as we hoped. However, we continued to look for a solution with ordinary concrete, which is essential for the massive application of our technology. We are more than delighted that Cemex took up the challenge and proud to have cooperated to develop the new solution.

Ricardo Almeida, Managing Director of Power2Build, said: “Meeting the global need for affordable housing requires not only technology that can build faster, but also materials that are as economical as ordinary concrete.

“With this solution, the strength and quality of concrete combined with the speed and automation of 3D printing, we can help solve the affordable housing crisis in Angola and beyond.”

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