The document discusses the bubble-deck slab system, which uses high-density polyethylene hollow spheres to reduce the structural dead weight of slabs. It outlines the advantages of the system, such as increased strength, ease of installation, environmental benefits, and cost savings, along with the installation process and structural properties. Additionally, it highlights various applications and limitations, signaling a future scope for use in larger constructions like skyscrapers and auditoriums.

1. BUBBLE-DECK SLAB
SYSTEM
Presented by
ASHLIN T V

2. INTRODUCTION
Department of Civil Engineering, UEC 2
Fig. 1. Section of conventional slab
24 January 2018

3. BUBBLE-DECK
24 January 2018 Department of Civil Engineering, UEC 3
High density
polyethylene hollow
spheres
Fig. 2. Section of Bubble deck slab
 System which eliminates the inactive concrete from the
slab
 Reducing the structural dead weight

4. COMPOSITION
Department of Civil Engineering, UEC 4
Plastic spheres
Steel
Concrete
Fig. 3. Composition of Bubble deck slab
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5. Department of Civil Engineering, UEC 5
Version
Bubble
diameter
(mm)
Minimum
slab
thickness
(mm)
Minimum
centre to
centre
spacing
(mm)
BD230 180 230 200
BD280 225 280 250
BD340 270 340 300
BD390 315 390 350
BD450 360 450 400
BD510 405 510 450
BD600 450 600 500
Table 1. Different types of Plastic Bubbles available in market
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6. TYPES OF BUBBLE-DECK
 Type A - Filigree elements
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Fig. 4. Type A - Filigree
elements
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7.  Type B - Reinforcement modules
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Fig. 5. Type B – Reinforcement modules
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8.  Type C- Finished planks
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Fig. 6. Type C- Finished planks
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9. ADVANTAGES
 Structural
– Less weight
– Increased strength
– No need of beams
– Few columns required
– Larger span
– Design freedom
Department of Civil Engineering, UEC 924 January 2018

10.  Construction
– Easy installation of ducts and pipes into slab
– Less work on construction site
– Reduced concrete usage
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 Environment
– Less material and energy consumption
– Reducing CO2 emission up to 40Kg/m2
– Components can be replaced
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11.  Economy
– Savings in material
– Reduction in transportation cost
– Faster construction time
– Building is more flexible and easy in installation
Department of Civil Engineering, UEC 1124 January 2018

12. INSTALLATION
1. Production of plastic spheres
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7(a) 7(b)
Fig. 7(a),(b) Hollow plastic spheres
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13. 2. Production of reinforcement cage
3. Insertion of bubbles in to lattice
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8(a) 8(b)
Fig. 8(a),(b) Insertion of Bubbles into lattice
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14. 4. Preparation of bottom layer of concrete
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Fig. 9. Laying of concrete base
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15. 5. Lowering of bubble lattice in to concrete base
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Fig. 10. (a),(b) Lowering the lattice in to concrete base
10(a) 10(b)
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16. 6. Vibration of the concrete
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Fig. 10. Vibration of concrete
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17. 7. Elements are finished and stocked
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Fig. 11. Bubble deck elements at stock
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18. 8. Transportation of finished bubble deck element
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Fig. 12. Bubble-Deck Elements transportation
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19. 9. Placing of bubble deck elements
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Fig. 13. Bubble-Deck Elements placing
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20. 10. Concreting and finishing the bubble deck slab
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Fig. 14. Concreting Bubble-Deck
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21. STRUCTURAL PROPERTIES
 Sound insulation
1db higher noise reduction
 Fire resistance
17% to 39% higher thermal resistance
 Durability
 Shear strength
 Vibration
Department of Civil Engineering, UEC 2124 January 2018

22. APPLICATIONS
 Millennium Tower, Holland
 Le Coie, UK
 Administrative Center, Brasilia, Brazil
 Harvey Mudd College, California, USA
 Walterbos Complex Tax Office Towers, Netherland
Department of Civil Engineering, UEC 2224 January 2018

23. LIMITATIONS
 Require skilled labour
 Thickness of slab
Department of Civil Engineering, UEC 2324 January 2018

24. SCOPE FOR THE FUTURE
• Constructing buildings especially sky scrapers
• Larger span halls like theatres and auditoriums
• Pedestrian bridge deck
• Used in parking areas
Department of Civil Engineering, UEC 2424 January 2018

25. CONCLUSIONS
 Bubble-Deck Slab perform better than normal
conventional solid slab
 Reduction in weight
 Technology is environmentally green and sustainable
 Reduction in concrete usage
 Cost and time saving
Department of Civil Engineering, UEC 2524 January 2018

26. REFERENCES
1. Arathi Shetkar & Nagesh Hanche (2015),” An Experimental Study on
Bubble Deck Slab System with Elliptical Balls”, International Journal of
Science and Research, 12(1), 21-27.
2. Bhagyasree G Bhade & Barelikar S M (2016), “ An Experimental Study of
Two Way Bubble Deck slab With Spherical Hollow Balls”, International
Journal of Recent scientific Research, 7(6), 11621-11626
3. Mike Mota (2013), “voided two way flat slabs”, American Society of Civil
Engineers Journal”, 1640-1649
4. Neeraj Tiwari & Sana Zafar (2016), “ Structural Behaviour of Bubble Deck
Slabs and Its Application”, International Journal for Scientific Research and
Development, 6(2), 433-437
Department of Civil Engineering, UEC 2624 January 2018

27. 5. PrabhuTeja P, Vijay Kumar P, Anusha S Mounika C H, Purnachandra Saha
(2012), “Structural Behavior of Bubble Deck Slab”, International
Conference on Advance in Research, Science and Management, 383-388
6. Raj R Vakil & Dr. Mangulkar Madhuri Nilesh (2017), “Comparative Study
of Bubble-Deck and Solid Deck Slab”, International Journal of Advance
Research in Science and Engineering, 6(10), 383-392.
7. Shivani Mirajkar & Mitali Balapur (2017), “Study of Bubble- Deck Slab
System”, International Journal of Advance Research in Science and
Engineering, 7, 01-05.
8. Surendar M &Ranjitham M (2016), “ Numerical and Experimental Study on
Bubble Deck Slab”, International Journal of Engineering Science and
Computing, 6(5), 5959-5962
Department of Civil Engineering, UEC 2724 January 2018

28. Thank you