How 3D printing completed a villa in 3 days

1. The 3D printed building walls are integrated

The reporter walked into the 3D printed villa and the five-story building and saw that the walls of the house looked like they were made of cement. It comes out the same, showing a threaded structure like a Baumkuchen. If you tap the wall with your fingers, you can hear a hollow sound. Although it feels rough to the touch, each layer is airtight and looks seamless. The 5-story building consists of one underground floor and five floors above ground, with a construction area of ??200 square meters on each floor. The reporter learned that it takes one day to print the materials to build a one-story house, but it only takes five workers three days to build it.

2. How is the wall printed?

The "printer" is 6.6 meters high, 10 meters wide and 32 meters long. The bottom area is as big as a basketball court and the height is three stories high. The width of the printed material can only be 1.2 meters, but the length can be unlimited. According to the computer design drawings and plans, a huge nozzle is controlled by the computer to eject "ink". The nozzle is like a cream decoration. The ink is arranged in a "Z" shape, layer by layer, and a high wall is quickly built. After that, the walls can be stacked up like building blocks, and then reinforced and cement can be used for secondary "printing" pouring to connect them together. Ten buildings of 200 square meters can be printed out within 24 hours.

3. The "ink" used for printing is mainly construction waste

The "ink" used for printing buildings is mainly construction waste, industrial waste and mine tailings, and the other materials are mainly cement. and steel bars, as well as special additives. said Zheng Jian, general manager of Yingchuang Innovation Materials (Suzhou) Co., Ltd.

4. Construction costs can be saved by 50% and the construction period can be shortened by 50 to 70%. Ma Yihe, chairman of the company, said that the biggest benefits of 3D printing buildings are energy conservation, environmental protection and material saving. Because 3D printing buildings do not produce any dust or construction waste. Using 3D printing technology can save 30 to 60% of construction materials and shorten the construction period by 50 to 70%. The construction cost can be saved by at least 50%. And customers can personally customize their home and house styles.

This villa is 1,100 square meters and can be completed in 3 days. We keep the beams and columns and there is no change in strength. This building has one underground floor and five above ground floors, one floor per day. After it is drilled out, there is a cavity in the middle, and then the steel bars are inserted and concrete is poured. This makes the house more integrated than a traditional house.

5. The 3D printing of a villa priced at 80 million only costs more than 1 million

It is understood that the 1,100 square meters 3D printed villa model house displayed on site will be sold in Pudong, Shanghai in the future. The price is more than 80 million yuan, and the cost of printing this villa is more than 1 million yuan. Currently, 10 units have been booked.

6. The 3D printing of a villa priced at 80 million only costs more than 1 million

Zheng Jian introduced that the strength of their 3D printed walls is five times that of ordinary cement, and it is hollow , more thermal insulation. However, the comprehensive performance of the buildings printed by the new "ink" needs to be further verified in terms of stiffness, strength and durability.

Ma Rongquan, chief engineer of China Construction Eighth Engineering Bureau, said that as a 3D printed building, there is currently no special national standard and it needs to be revised and improved in the future.