You can use insulated concrete forms[1] blocks. I've helped a friend build a hou...

		gav on Aug 31, 2014 \| parent \| context \| favorite \| on: Man builds 3D printed concrete castle in his own b... You can use insulated concrete forms[1] blocks. I've helped a friend build a house this way, it's like putting together lego blocks. [1] https://en.wikipedia.org/wiki/Insulating_concrete_form