Engineers at the阿曼德国技术大学（Gutech）与建筑专家合作cobodandCEMEX建造他们所说的是有史以来最大的建筑物，是从“真正的混凝土”中打印出来的3D。
Erected in the Omani capital of Muscat, the 2,100 sq. ft home, complete with three bedrooms, three bathrooms, living room, kitchen and reception area, has been built via a unique additive approach. First developed by CEMEX and COBOD, and later used to buildAngola’s first 3D printed house, the process involves mixing D.fab solution with local aggregate, in a way that’s said to make it much easier to deposit.
“This revolutionary 3D printing system is a testament to our customer-centric mindset and relentless focus on continuous innovation and improvement,” said Juan Romero, CEMEX’s Executive VP of Sustainability, Commercial and Operations Development. “Working together with COBOD, we have developed an experience for customers that is superior to anything that has been provided in the past.”
Admixture-enabled innovation
In order to build their house in Oman, the GUtech team turned to COBOD and itsBOD2 3D printer，一种龙门安装的系统，可实现多层混凝土结构的一层结构。尽管令人印象深刻，但该技术本身已经存在了一段时间，并且自从建立第一座印刷建筑in 2017, COBOD has used it to address construction challenges around the world.
Last year alone, the firm worked with14Trees，建筑材料专家之间的合资企业Lafargeholcim和CDC组, to help tackle Malawi’s classroom shortage by3D printing an entire schoolthere, and deployed its technologies to constructthree new low-cost homes为了打击美国经济适用房危机。
经营rds the end of 2021, however, COBOD revealed that it had worked with building material developer CEMEX to come up with a novel method of turning regular concrete into a lower-cost 3D printable material. In essence, the firms have been able to accomplish this by adding CEMEX’s D.fab solution to locally-sourced aggregate, in a way that makes it more fluid, malleable and easier to print.
During the first proof-of-concept project to use the material in Angola last year, the companies worked with local contractorPower2Build, which found that being able to deploy local aggregate allowed it to reduce its housing construction costs dramatically, down to less than $1,000 for each 575 sq. ft of home built.
现在，在第二个这样的项目成功地使用其机器和阿曼的新水泥混合物之后，Cobod创始人Henrik Lund-Nielsen表示，其技术的增强成本潜力增强了，可以实现其更广泛的应用。
Lund-Nielsen补充说：“尽管我们一直很乐意帮助各种水泥和混凝土制造商开发干燥混合3D可打印的迫击炮，但我们还坚持认为，对于我们的技术大量应用，需要从本地可用材料中制造真正混凝土的解决方案。”。“我们很高兴Cemex承受着挑战，并为我们合作能够开发新解决方案而感到自豪。”
“With the low cost of printed materials, on top of the savings from not needing formwork and the minimal crew needed to operate our printers, our disruptive technology is now more competitive than ever.”
经济的阿曼3D打印
Gutech团队在短短五天的时间内建造的独特的社交住房建设才是通过与Cobod和Cemex的同事的密切合作而成为可能的。例如，在入门之前，阿曼机组在BOD 3D打印中获得了速成课程，而Cemex帮助制定了该项目的理想建筑材料。
Once prepared, the engineers found they were able to erect the building rapidly, at a reported cost of less than €1,600. Largely, the crew were able to achieve this by sourcing more than 99.5% of the build’s materials locally, with the other 0.5% or so coming from CEMEX additives, and according to COBOD, if the house had been made from dry mix mortar, it would’ve cost upwards of €20,000.
After the home had been finished on December 14, 2021, it was presented to a 200-strong crowd of dignitaries, including His Excellency Sultan Al-Habsi, Oman’s Minister of Finance. Moving forwards, it’s hoped that the project will drive the further adoption of 3D printing in the country’s construction industry, as part of its愿景2040plans to develop its national technical and entrepreneurial capabilities.
“Today’s display of the first 3D printed building is perhaps the first step in the 1,000-mile journey. A step that will not be successful without the support of all parties involved,” Dr. Hussain Al Sami, Acting Rector of GUtech, said at the building’s unveiling. “In this regard, I sincerely thank all the local and international parties who contribute to supporting the center and the university.”
“We hope that this center will play its part in supporting Oman’s efforts to achieve Oman’s Vision 2040.”
AM in Middle Eastern construction
尽管COBOD一直热衷于强调如何祝ch’s Omani home is the first of its kind to be 3D printed from real concrete instead of traditional dry mix mortars, it’s far from the first additive manufactured structure in the Middle East. In fact, the region has become a hive of 3D printing activity over the last few years, so much so that last year the UAE’s Prime Minister issued a建设AM法令。
大约在同一时间，迪拜政府公布了所说的世界上第一个3D印刷研究实验室。Built to serve as an international additive manufacturing hub at the emirate’s 77 km² Solar Park, theDubai Electricity and Water Authority(DEWA) facility now houses the agency’s rover and drone R&D.
Elsewhere in Dubai, it was revealed last August that real estate developer万神殿发展was weighing up3D打印一栋十一层建筑。While the company is said to have discussed the viability of such a structure with three different construction firms, it remains unclear if it will pursue its plans any further.
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特色图片显示了古特切奇（Gutech）的阿曼（Amani）的房屋和Cobod的Bod 2 3D打印机，该建筑正式揭幕。图像通过cobod。
