Start a new era of “architectural 3D printing

In May 2021, the country’s first three-story concrete 3D printed building will be opened to the public. This building is located in Changzhi City, Shanxi Province, on the Taihang Mountains, with an overall construction area of ​​300 meters. This 3D printed building was built by our (Hangzhou) Co., Ltd. located by the Qingshan Lake in Hangzhou, Zhejiang.

The world’s first on-site in-situ 3D printed three-story building renderings 1. “3D printed building” construction process and advantages 1. “3D printed building” construction process The process of 3D printed building is like squeezing a cream cake. The “ink” made of sand, cement, special fibers and some other special additives is quantitatively extruded from the printer’s nozzle according to the computer’s pre-designed drawing path, superimposed layer by layer, and then printed out a complete house. Jiang Xufeng, the person in charge of our (Hangzhou) Co., Ltd., told reporters: 3D Printing buildings have liberated a large amount of labor. The entire equipment requires only two new industrial workers, namely operation engineers. The wall part, one floor per day, is completely profiled. Without increasing the cost, it completes the architectural effect that can be achieved by traditional manual labor with great expense and effort. 2. The advantages of “3D printed buildings” As a brand new construction method, the biggest highlight is energy saving and environmental protection. Compared with the traditional construction industry, on the one hand, the building is completely customized on demand, on-site construction and material distribution are fully computer controlled, and no construction waste is generated; on the other hand, it can reuse construction waste, industrial waste and tailings, etc. Solid Waste. 3D printed buildings are processed through technologies such as crushing, grinding, and reproportioning to make them the raw material for printing “ink”, turning waste into treasure. Only the reprocessing of construction waste from urban demolition is equivalent to a nationwide new development. “Urban mines” have been established one after another. It is not only structurally stable, safe and reliable, but also saves 20-30% of building materials, shortens the construction period by 30%-50%, reduces the number of people by 20%-50%… According to estimates, once the technology is fully mature and industrialized, at least it can Reduce the construction cost to more than 70-80% of the traditional, creating huge social and economic value. 2. The road to independent innovation of our “3D printing architecture” 3D printing of architecture was born in the United States. As a local company, if we want to occupy a place in “3D architectural printing”, we can only continue to explore and study materials professionally. Equipment, craftsmanship, etc., work hard to practice. Since its establishment in 2014, it has only done one thing, and that is the independent innovation of “3D printed buildings”. This arduous road of independent innovation will take seven years.

GALAXY, a building machine that can print 100-meter high-rise buildings, is in independent innovation. The most representative of the enterprise level is patent construction. From the upstream and downstream of architectural 3D printing, it involves patents related to materials, fabric reinforcement, machinery, and motion control. According to reports, we are currently the only company in the industry with a full range of patent portfolios, with more than 30 patents, half of which are inventions. We have truly implemented independent innovation and laid a good foundation for future industrialization. At the end of 2015, our (Hangzhou) Co., Ltd. developed the prototype ZERO, which landed in Hangzhou and successfully printed a small villa model. So far, 3D printing architecture has officially entered China and has flourished in China. Since then, technology updates, equipment iterations, and rapid development have continued to introduce new ones. In March 2016, the formula of building 3D printing materials was certified by an independent third-party authority; in May, the strength of 3D printed wall components passed the test; in July, the 3D printed building structure passed the test; in November, the 3D printed wall Seismic test of body components; in April 2017, 3D printed ultra-high toughness concrete viaduct piers…On August 24, 2018, the first domestic patent on 3D printing building materials “a high-strength and high-toughness waterproof mortar that can be used in 3D printed buildings Material and its preparation method” was approved. In the summer of the same year, our 3D printing building helped “agriculture, rural areas and farmers”. The country’s first agricultural greenhouse was settled in Yinchuan, the Pearl of the Pearl River. It saves material greatly while keeping heat preservation effect. As we all know, the Ningxia Autonomous Region is extremely dry and hot in summer. Under such circumstances, the team overcomes the scorching weather and the temperature difference between day and night, and successfully completed the on-site construction. This is the first case in the world, which truly brings 3D printed buildings from the laboratory to the application market. , Has epoch-making significance. At the beginning of 2020, our self-developed building machine “GALAXY” that can print 100-meter-high buildings was successfully born.

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3D printing helps the “three rural industries” 3. We actively launched the “3D printed building” scenario application solution, and actively participated in the formulation of the “3D printed building industry standard”. In the process of product development and market research, we found that “3D What “printed building” can do is to replace bricks and templates, but it cannot completely abandon labor. In the specific implementation process, there are still key technical difficulties such as traditional and modern construction methods, especially how to print the floor panels and how to arrange the steel bars. The key to the problem is how to solve the productization of printing equipment, the productization of printed works or components, and the establishment of a complete business model. Therefore, we segmented the market and launched equipment solutions for different market application scenarios, such as building machines for printing 100-meter-high buildings, mobile factories for printing three-story houses, and self-propelled printing equipment for flexible transfer operations in small areas. and many more. Around December 10, 2020, a standard seminar on “Test Methods for Interface Bonding Strength of 3D Printing Cement-based Materials” led by China National Building Materials Research Institute was held in Kunming, Yunnan. Many scientific research institutes, enterprises and institutions have participated in the 3D printing construction. As a leader in the 3D printing industry, I was invited to work with the Ministry of Housing and Urban-Rural Development and the National Standards Committee to formulate the “3D Printing Construction Industry Standard”. 4. We: The spring of “3D printing architecture” has come for the next five years. The technology of “3D printing architecture” is expected to play an important role in more and more construction scenarios. Today’s “3D printing building” technology is the prefabricated building 10 years ago. It is precisely because of the continuous iteration of technology and innovation that the industry is vigorous. Our senior person in charge Jiang Xufeng said: The spring of “3D printing architecture” has come! From 2015 we printed “the world’s first 100-meter on-site agricultural greenhouse”, the characteristic cultural tourism town (Anhui) in 2018, and the world’s first on-site 3D printed toilet (Tangshan) in 2020, all left us The footprint of “3D printing architecture”. We·the world’s first on-site 3D printed toilet (Tangshan)

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