3D printing in construction is when companies or projects sequentially layer materials via computer-controlled processes to create three-dimensional shapes. 3D printers are useful for creating new structures on-site or manufacturing components off-site for later assembly. The printer receives dimensions from a software program and builds the
This work explores the role of 3D concrete printing (3DCP) in achieving the relevant sustainable development goals (SDGs) that were set out by the United Nations. The study focuses on the recent progress and limitations of the three dominant types of cementitious mixtures, ordinary Portland cement (OPC), recycled aggregate-based cement, and geopolymers, and real-world applications for 3DCP.

But Penn State being selected for this challenge has also a lot to do with their experience and innovation in 3D printing. They have many 3D printing labs on campus, like the Maker Commons, which

Two main scenarios can be considered for widespread adoption of C3DP technology by the construction industry: (1) Using concrete 3D printers in the prefabrication facilities to produce structural elements and (2) Using portable concrete 3D printers for onsite construction. Successful demonstration projects have been carried out for both scenarios.
Lessons learnt for metal 3D printing in construction from additive manufacturing using other materials and in other industries are also presented. Winsun Dubai office building [30] Castilla-La Despite 3D Concrete Printing having the potential to advance the construction industry through material savings, design flexibility, and a more efficient workflow from design to construction, the challenge of reinforcing the layers of created structures remains unresolved.
Applicability of 3D Printing into Sri Lankan Construction Context and its Importance 6.1 Cost Perspective Since the Sri Lankan economy is enlisted and operates in a developing perspective, the construction industry alone plays a vital role where 6-9 % of the contribution is provided to the Nation GDP (Gross Domestic Product) of the country.
The most common 3D printing technology for construction involves a robotic arm that extrudes concrete while moving back and forth. Powder binding and additive welding are other methods used for 3D printing in construction. Powder binding involves the solidification of powder layers to create the desired object.
The global 3D printing building construction market is expected to grow from $0.01 billion in 2021 to $0.02 billion in 2022 at a compound annual growth rate (CAGR) of 177.0%. The growth is mainly
3.1. Energy and Environmental Benefits of 3D-Priting in Construction The referred studies either discussed, analyzed, or substantiated a wide range of benefits of 3D-printing in construction such as reduced time, material use and cost as well as maximized quality, design performance, efficiency, and productivity.
The main benefits of 3D printing in construction include constructability and sustainability benefits. The challenges are categorized into seven groups. The main challenges, found through the The weather, climatic circumstances, and more might make 3D printing in commercial building a bust rather than a boom. Quality control is already a challenge in construction. Without continual monitoring and oversight by real people, 3D printing quality could turn into a costly disaster. The current construction industry for civil and structural engineering is considered to be one of the growing industries in the world. With the push toward a more digitized industry, emerging trends such as additive manufacturing and the use of three-dimensional (3D) printing technology, along with consumer demand, are resulting in automated development with multiple benefits. challenges of 3D printing concrete usi ng horizontal extrusion . based technology [26]. When compared to traditional construction methods, 3D printing has enormous potential,
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    • challenges of 3d printing in construction