Monday, January 20, 2014

3D Printing Concrete Construction


Add to guns and prosthetic hands something much bigger and heavier forming from the nozzle of a 3D printer — buildings “printed” out of concrete.

Partially funded by the Office of Naval Research and the National Science Foundation Countour Crafting is trying to develop 3D printed buildings using concrete. Company founder Behrokh Khoshnevis is a professor and director of Manufacturing Engineering Graduate Program at the University of Southern California.

Concrete printers would be able to build a 2,500-square-foot building within a single day, according to Khoshnevis.

For the military, that means soldiers deploying to a remote location with little or no infrastructure could be operating out of permanent structures pretty soon after a combat engineer unit arrived with printers and material aboard a C-17.

Essentially, building via printer would work just like any computer assisted manufacturing program. But instead of a robotic tap and die machine turning out parts according to a program, it would be an oversized printer following programmed schematics to lay down, layer by layer, a building, including outside and interior walls, spaces for doors and windows and all electrical, plumbing and air-conditioning conduits, according to Khoshnevis’ website.

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