3D Printed Structures To Push Construction limits
3D Printed Structures To Push Construction limits
3D construction printing will transform the construction industry due to its ability to expedite the industrialisation of the construction process. The objective of constructing a greater number of buildings in a shorter space of time at a lower cost is what fuels desire to make this technology a commercial success.
As start-ups compete to create new designs and cut construction times from months to days, they are becoming an increasingly viable solution to the affordable housing shortage. Tvasta has build 600 sqft single bedroom house as a proof of the concept which has come up with financial support from Habitat for Humanity and recently L&T has 3D printed a G+1 (Ground plus one) building with reinforcement for the first time in India.
PERI builds the first 3D-printed residential building in Germany and the largest multi-family house in Europe.
With the government of India aggressively pursuing the objective of creating 60 million houses under the Pradhan Mantri Awas Yojana (PMAY) Housing for All by 2022 programme, 3D printed buildings will certainly give a huge boost to the mass housing segment.
A 3D construction printer can be used to create concrete structures in a quick and cost-effective manner, and with a significant degree of design flexibility – without the need for formwork. This makes the procedure an ideal alternative to brick/block construction. One of the major advantages of 3D printed construction is the ability to use free-form architectural shapes, whether the walls are straight, curving, twisted or slanted.
As technology involves using building-sized 3d printers that inject layers of material such as cement onto a digitally marked on-site layout to form the exterior and interior walls and roof. Mix designed cement concrete with water-reducing and accelerating admixtures help it solidify far faster, green strength of the concrete is achieved within a few minutes and the entire construction process can be completed in days instead of months, reducing waste material by 25 to 30 percent. Partially recycled materials can be added to the cement concrete mix, which is beneficial for the environment.
Buildings upto G+3 (ground plus 3) can be constructed as the hollow sections of printed walls can be used as column formwork and by adding reinforcement with concrete into and connected slabs could be casted at site.
3D construction printing can save time and labour cost, a 200 Labour job can be done 10 skilled employees, increasing productivity as work can continue outside of typical hours and planning reliability. The 3D construction printer is both clean and safe, requiring very little physical labour; This will improve your appeal as an employer, making it easier for you to attract skilled employees.
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