http://blogs.wsj.com/corporate-intelligence/2014/04/15/how-a-chinese-company-built-10-homes-in-24-hours/?mod=e2fb
Chinese companies have been known to build major real-estate projects very quickly. Now, one company is taking it to a new extreme. Suzhou-based construction-materials firm Winsun New Materials says it
has built 10 200-square-meter homes using a gigantic 3-D printer that
it spent 20 million yuan ($3.2 million) and 12 years developing. Such 3-D printers have been around for several years
and are commonly used to make models, prototypes, plane parts and even
such small items as jewelry. The printing involves an additive process,
where successive layers of material are stacked on top of one another to
create a finished product.
Winsun’s 3-D printer is 6.6 meters (22 feet) tall, 10 meters wide and
150 meters long, the firm said, and the “ink” it uses is created from a
combination of cement and glass fibers. In a nod to China’s green
agenda, Winsun said in the future it plans to use scrap material left
over from construction and mining sites to make its 3-D buildings.
Winsun says it estimates the cost of printing these homes is about half that of building them the traditional way. And although the technology seems efficient, it’s unlikely to be widely used to build homes any time soon because of regulatory hurdles, Mr. Chen said.
The Chinese firm isn’t the first to experiment with printing homes. Architects in Amsterdam are building a house with 13 rooms,
with plans to print even the furniture. The Dutch architect in charge
of the project said on the project’s website it would probably take less
than three years to complete.
Winsun says it estimates the cost of printing these homes is about half that of building them the traditional way. And although the technology seems efficient, it’s unlikely to be widely used to build homes any time soon because of regulatory hurdles, Mr. Chen said.
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