3Dogg_Printing_in_Construction_Sanzz.pptx

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1. 3D Printing in Construction Prepared by: Sanzz Department of Civil Engineering

2. Introduction 3D printing in construction, also known as additive manufacturing, involves creating building components or entire structures layer by layer using computer-controlled equipment.

3. History & Evolution • First appeared in the early 2000s • Initially used for small-scale prototypes • Rapid development due to advances in robotics and materials • First 3D printed house completed in 2014

4. Need for 3D Printing in Construction • Labor shortage in construction industry • High material wastage • Time-consuming traditional processes • Need for affordable housing • Demand for sustainable construction methods

5. Objectives • Reduce construction time and labor • Improve design flexibility • Achieve sustainability and precision • Enable rapid housing during disasters

6. Materials Used • Specially formulated concrete mixes • Polymers and composites • Geopolymer concrete • Recycled materials • Binders for enhanced strength

7. Equipment & Technology • Large-scale 3D printers • Robotic arms and gantry systems • Computer-aided design (CAD) and slicing software • Automated material feeders and pumps

8. Procedure / Process 1. Design structure using CAD software 2. Convert model to STL/G-code 3. Load material into printer 4. Print layer by layer 5. Curing and finishing

9. Workflow Diagram Illustration of how 3D printing process works – from design to construction (image placeholder)

10. Advantages • Faster construction speed • Reduced labor cost • Minimal material waste • Complex geometry possible • Eco-friendly and sustainable

11. Limitations / Challenges • High initial equipment cost • Limited material options • Lack of construction codes • Skilled operator requirement • Quality control issues

12. Case Study (India) Tvasta Manufacturing Solutions – IIT Madras • Built India’s first 3D-printed house in 2021 • Printed in 5 days using concrete mix • Example of affordable housing solution

13. Case Study (World) ICON (USA) – 3D printed houses for affordable living Apis Cor (Russia) – Printed a house in 24 hours Demonstrates feasibility and global adoption

14. Future Scope • On-site printing for mass housing • Smart construction integration • Use in space and extraterrestrial structures • Fully automated and AI-driven systems

15. Conclusion 3D printing in construction is revolutionizing the industry by offering faster, cheaper, and sustainable methods. It holds promise for solving the global housing crisis.