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Mahesh

19/08/23 06:34 AM IST

India’s first 3D-printed post office inaugurated in Bengaluru

In News
  • Union Minister for Railways, Communications, Electronics and IT Ashwini Vaishnaw recently dedicated to the nation India’s first 3D-printed post office located in Bengaluru’s Cambridge Layout.
Features
  • Its construction was carried out by Larsen & Toubro Limited with technological support from IIT Madras under the guidance of Professor Manu Santhanam, Building Technology and Construction Management Division, Department of Civil Engineering.
  • The post office covers a built-up area of 1,021 sq ft.
  • Its construction was carried out using 3D concrete printing technology which is a fully automated building construction technology wherein a robotic printer deposits the concrete layer by layer as per the approved design, and special grade concrete – which hardens quickly – is used to ensure bonding between the layers for the purpose of printing the structure.
  • The construction was also carried out at a cost of Rs 23 lakh, around 30-40 per cent less compared to the cost involved in conventional methods.
  • The special concrete material used for this project provides pumpability, extrudability, buildability and is powered with mechanical properties.
  • The 3-D printing technology which was actually imported from Denmark for the post office project was also flexible to incorporate curved surfaces and adapt to site dimensions, showing no constraints of plane walls.
  • The technology also enabled continuous reinforced concrete footing and three-layer walls with outer layers printed with concrete and the middle being reinforced concrete.
  • The final construction schedule came down to just 43 days, much shorter than conventional construction methods and with less material wastage.
3D Printing
  • 3D printing’s USP is to enable individual customisation of the structure which can play an integral role in housing-related construction.
  • 3D printing also enables incorporation of weather-proofing as well as utilities within the walls for more efficient construction.
  • Thus allowing the delivery of quality houses anywhere, including in difficult terrains.
Source- Indian Express

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