U-BOOT TECHNOLOGY for the civil construction

U-boot installation and inspection related actiivtes

1. U-BOOT TECHNOLOGY SUBMITTED BY : Subin Roll No 23

2. CONTENTS Introduction Types of u-boot Process Advantages Applications Conclusion

3. INTRODUCTION OF U-BOOT Founder of u-boot Concrete quantity Technologies Reduce weight and thickness

4. U- BOOT BETON U-Boot Beton is made up of Recycled plastics (polypropylene).

5. Two types of u-boot betons Single u-boot beton : Double u-boot beton :

6. PARTS OF U-BOOT CONNECTION BRIDGE SPACER JOINT

7. CLOSING PLATE

8. MATERIALS FOR U-BOOT TECHNOLOGY Cement Steel Fine aggregate Coarse aggregate Water Re-Cycled plastic mould (U-boot shells)

9. CONSTRUCTION PROCESS OF U-BOOT Form work Normal formwork (steel or wood) Reinforcement Flat reinforcement (type and design) Placing of U-Boot shells Place as per design; shells have corner needles for support Inter-connect shells to steel rods Placing of Triangular Reinforcement Purpose and method of connection Concreting Thickness of laying and proper compaction Curing Smooth finishing at the bottom, top, and slab corners

10. Form work Normal form work Steel or wood

11. Flat Reinforcement Type Design

12. Placing of U-boot shells The u-boot is placed in the as per design. The shells having a corner needle for support. All shells are inter-connected to the steel rods.

13. Triangular Reinforcement Purpose Method of connection

14. Concreting Thickness of laying Compaction

15. Finishing This makes smooth finishing in bottom, top and all corners of the slab.

16. Shear resistance The main difference between a solid slab and a hollow biaxial slab is a shear resistance. Due to the reduced concrete volume, the shear resistance will also be reduced.

17. Carrying capacity Test Load carrying capacity in percentage

18. Sound resistance Use of reinforced plastic shells.

19. U-Boot Beton is used for: Residential buildings Hospital buildings Commercial buildings School buildings Public buildings

20. General benefits of the system Different building types have different advantages , but general benefits in contrast to solid slabs are: Design Freedom Down stand beams and bearing walls eliminated Reducing overall costs Reduced Dead Weight

21. Continued… Longer spans between columns Reduced foundation sizes Reduced concrete usage Environmentally Green and Sustainable

22. Another use: In this U-boot beton is used for not only in the slab also used for foundation.

23. ADVANTAGES Decrease self weight up to 40% Construction is without beams Reduce deformations Longer span of construction achieved

24. Continued… Easy to construct Reduced the cost of construction up to 15% of total cost Fire resistant Very economical

25. PRACTICE OF U-BOOT TECHNOLOGY IN THE WORLD BERGAMO (Italy) ITC-lab and research center 25,000 m² NAAS (Ireland) shopping center 50,000 m² SACLAY (France) nanotechnologies research and development center –CEA 22,000 m²

26. CONCLUSION U-Boot Technology replaces non-structural concrete with engineered voids to deliver lighter, efficient, and sustainable slabs Success depends on proper shear/punching design, rigorous QC, and trained execution Benefits: reduced dead load and materials, longer spans with flat soffits, optimized foundations, and environmental gains

27. REFERENCES Anil, A., et al. (2020). IJETA 07. Khan, S., et al. (2020). IJSRP 10. Mateus, R., et al. (2022). IRJMETS 04. Thakare, I. R., et al. (2022). IRJMETS 04. Manufacturer technical manuals and design guidance for U-Boot Beton Relevant codes: IS 456, IS 875, IS 1893; Eurocode 2; ACI 318