The document describes an experimental study on constructing bubble deck slabs by inserting coconut shells. It aims to determine the load bearing capacity of filler slabs using coconut shells and compare it to conventional slabs. The study also aims to estimate the amount of concrete saved by using coconut shell fillers and to compare the strengths of conventional and filler slabs. It outlines the objectives, scope, literature review on previous similar studies, materials used including coconut shells and concrete mix design, and the methodology to be followed for casting specimens and conducting experimental testing and analysis.

1. EXPERIMENTAL STUDY OF BUBBLE DECK SLAB
BY INSERTING COCONUT SHELL
PRESENTED BY:
AJAY RAJ S - MBC15CE002
ALAN JAMES – MBC15CE004
SACHINKUMAR PS – MBC15CE045
BASIL IPE – LMBC15CE054
GUIDED BY:
Prof. BOBEENA GEORGE & Prof: SURYA
RAVINDRAN
Assistant Professor
Dept. of Civil Engineering
MBCCET Peermade.
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Department of Civil Engineering. MBCCET Peermade.

2. OVERVIEW
 INTRODUCTION
 OBJECTIVE
 SCOPE
 LITERATURE REVIEW
 METHODOLOGY
 TIME SCHEDULE
 CONCLUTION
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

3. INTRODUCTION
Method of virtually eliminating all concrete from the middle of a slab
Which dramatically reduces structural deadweight
Inserts plastic spheres in between the meshes
What is a Bubble deck slab ?
Department of Civil Engineering MBCCET Peermade
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FILLER SLAB CONSTRUCTION USING COCONUT SHELL
Fig.1 Bubble Deck Slab [1]

4. PROBLEM IDENTIFICATION
 Now a days cost of construction is increases day by day
 Excessive usage of concrete leads to increase in CO2 production thereby causing
global warming
 Therefore, reducing concrete in building construction is one of the solutions to the
mentioned problem
 Hence to cater to the problem, an alternate building technology such as filler slabs
is adopted
 Filler slabs are the type of slabs where filler materials are used in the tension
zone of slab as a partial replacement for concrete in that region
 By using filler slabs we can reduce the dead weight of slab and reduces the amount
of material using
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

5. OBJECTIVE
To determine the load bearing capacity of filler slab using coconut shell and
compare with conventional slab
To estimate the amount of concrete saved as a result of coconut shell introduction
into the core of the slab
To study the structural behavior of filler slab
To compare the strength between conventional slab and filler slab
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

6. SCOPE
 Treatment of coconut shell for better bonding and protection from the attack of termites
 Deflection characteristics of coconut shell slab can be investigated
 Thermal characteristics of coconut shell slab can be investigated
 This project in future we can use coconut shells in the footing’s base-slab.
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

7. APPLICATIONS
 Waiting sheds
 Public toilets
 Car parks
 Security Guard Rooms
 ATM Rooms
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Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

8. LITERATURE REVIEW
8
TITLE AUTHOR SUMMARY YEAR
Study of flexural
behavior of filler
slab
Abhishek. P, Mohammed
Zakiulla
 It was seen that conventional slab
withstood 13 kN more load than the filler
slab with coconut shells as filler material
 This is due to the presence of filler
materials in the tension zone of filler slab
2017
Study the filler slab
as alternative
Construction
technology
Amit d chougule, manoj h.
Mota, mrs. Ushadevi s patil
 Have carried out an experiment in which
they have used filler materials which are
economical , light weight and easily
available
 It was seen that energy consumed in
Mangalore tiles , ferroconcrete tile was
lesser than common RCC slab
2015
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

9. LITERATURE REVIEW(contd.)
9
TITLE AUTHOR SUMMARY YEAR
Study on Flexural
Behaviour of RCC Slab
Filled with Hollow
Roofing Tiles
Deepika Dinesh,
Akhil P.A
• Experimental investigations on control specimen
and slab with different arrangement of the hollow
roofing tiles were carried out
• Load carrying capacity, maximum deflection and
failure patterns were analyzed
2018
Numerical and
Experimental Study
on Bubble Deck Slab
Research
M.Surendar
M.Ranjitham
 Compared to conventional in situ RC slab, this
technique is economical and will result in saving of
cement and steel and is an ideal step towards
generation of affordable housing, for developing
countries
2016
study on bubble
Experimental deck slab
Mr. Muhammad
Shafiq
Mushfiq,Shikha
et.al..
 This paper describes a new construction
technology using recycled spherical balls in slabs
to reduce self-weight of the structure as part of
the concrete is replaced by the bubbles
2016
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

10. LITERATURE REVIEW(contd.)
10
TITLE AUTHOR SUMMARY YEAR
Review on bubble deck
with spherical hollow
balls
Rittik Bhowmik,
Sourish Mukherjee,
Aparna Das
• The aim of this paper is to discuss about various
significance of Bubble Deck Slab against
Conventional Slab based on the various studies
2017
Cost Effective and
Innovative Housing
Technology
Ayush Srivastava
 By using cost effective materials, about 30-35% of
the total cost of construction of a single or two
storied building can be saved without compromising
its quality control and structural stability
2014
Biaxial hollow slab
with innovative types
of voids
A. Churakov
• Use of recycled plastics and filler materials can
reduces the amount of concrete used . Reducing
material consumption made it possible to make
the construction time faster, to reduce the overall
costs
2016
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

11. LITERATURE REVIEW(contd.)
11
TITLE AUTHOR SUMMARY YEAR
A Review Study on
Bubble Deck Slab
Harshnearshit Vy,
Nitish Jauhari,
Himanshu Bhatt
• Bubble deck reduces up to 35% of the structural
concrete in slab and up to 20% reduction in other
structural members
• This method is effective in time saving, use of
Bubble deck makes construction very faster
• Bubble deck system makes the slab lighter in
weight, this reduction in weight reduces some
column and beam ie. equal to the time saving
2017
Sustainable use of low
cost building materials
in the rural india
Ali Haider Jasvi, D.K.
Bera
 This paper emphasizes on the methods of using low
cost housing technique in India. It provides us a
challenge to use the natural materials and their by-
product so as to reduce the wastage or bye products
obtained from industries and environmental pollution
2015
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

12. LITERATURE REVIEW(contd.)
12
TITLE AUTHOR SUMMARY YEAR
A RC filler slab with
non-autoclaved
cellular concrete
blocks for sustainable
Construction
Jaisingh et.al • -In this context, utilisation of this waste material in
building construction will go a long way in solving
its disposal problem.
• Towards this end, a technology has been
developed at the Central Building Research
Institute (CBRI), Roorkee, India, to construct
reinforced floor/roof slab with nonautoclaved
cellular concrete filler blocks cast with flyash, lime,
cement and a foaming agent Room size filler slabs
were tested for their structural and functional
performance at CBRI
2014
investigation on cost
effective slab system
Nilanjan sengupta • Concentration of greenhouse gases play major
role in raising the earth’s temperature.
• Carbon dioxide, produced from burning of fossil
fuels, is the principle greenhouse gas and efforts
are being made at international level to reduce its
emission through adoption of energy-efficient
technologies.
2018
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

13. LITERATURE REVIEW(contd.)
13
TITLE AUTHOR SUMMARY YEAR
Structural behaviour of
bubble deck slabs and its
applications
Neeraj Tiwari,
Sana Zafar
• The Bubble Deck slab is a newly designed biaxial
concrete floor slab system. High density polythene
(HDPE)hollow spheres are placed in the center of
slab by replacing the ineffective concrete.
• it decreases the dead weight so increases the
efficiency of floor. It has many advantages over
normal solid conventional concrete slabs .
2016
Parametric study of R.C.C
voided and solid slab
Saifee Bhagat
• In this paper various parameters of the voided and
solid flat plate slabs is calculated to compare the
both systems.
• To evaluate the performance of the R.C.C voided
and solid flat plate slabs, modelling of slabs is
carried out using SAP 2000 having span ranging
from 6x6 m to 14x14 m of 4x4 bay in both direction
with thickness of the slabs 280 to 600 mm
2010
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL
2016

14. 14
TITLE AUTHOR SUMMARY YEAR
An Experimental Study
on Two Way Bubble
Deck Slab with Spherical
Hollow Balls
Bhagyashri G.
Bhade
• Bubble deck slab is a method of virtually
eliminating all concrete from the middle of a floor
slab, which is not performing any structural
function, thereby dramatically reducing structural
dead weight.
• High density polyethylene hollow spheres replace
the in-effective concrete in the Centre of the slab,
thus decreasing the dead weight and increasing
the efficiency of the floor.
2016
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

15. Department of Civil Engineering, MBCCET Peermade
Literature Review
Procurement of materials
Mix Design (M25)
Casting of Specimens
Experimental investigation
Results & Discussions
Conclusions
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FILLER SLAB CONSTRUCTION USING COCONUT SHELL

16. MATERIALS USED
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL
MATERIALS SPECIFICATION
Cement PPC of grade 43
Sand M sand
Coarse aggregate Gravel 20 mm nominal size
Steel Fe 415 of 10mmø
Coconut shell 70mm dia. (Avg)

17. M25 MIX DESIGN
As per IS10262 Guidelines for concrete mix design proportioning
 Target strength = 33.25
 Water cement ratio = 0.45
 Water content = 147 kg/m3
 Cement content = 437.7 kg/m3
 Coarse aggregate = 1018.84 kg/m3
 Fine aggregate = 800 kg/m3
 Mix proportion = 1:1:2
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Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

18. Material properties (as per IS 2386 part 3)
 Cement
1) Specific gravity : 3.15
2) Fineness : 3.2%
3) Consistency : 38%
4) Initial and final setting time: 30 min and 10 hr.
 Coarse Aggregate
1) Water absorption : 14% (Gravel 20 mm nominal size)
2) Specific Gravity : 2.74
 Concrete
1) Slump :100mm
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

19. Table 1:Number of specimen Cast
19
ID NO:
M1 3
C1 3
S1 3
S2 3
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL
Note:-
M1- Cube
C1 – Cylinder
S1 – Slab without coconut shell
S2 – Slab with coconut shell

20. 20
Specimen type Mix cement(kg)
Fine aggregate Coarse
aggregate Filler material
PPC 43 grade kg 20mm nos
Cube M1
1.8 1.8 3.6 0
1.8 1.8 3.6 0
1.8 1.8 3.6 0
Cylinder
C1
3 3 9 0
3 3 9 0
3 3 9 0
slab
S1×3 73 73 146 0
S2a 65 65 130 36
S2b 65 65 130 15
S2c 65 65 130 12
Total
428.4 428.4 856.8 63
Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL
Table 2: Quantity of materials

21. Casting of Specimens
 Cube and cylinder
 The concrete mix design obtained was 1:1:2 (M25).
 Three cubes of dimension 150mm×150mm×150mm and
Three cylinders of 150mm dia.× 300mm height is casted for check the compressive strength
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FILLER SLAB CONSTRUCTION USING COCONUT SHELL
Fig.2 Casted Cube and cylinder

22.  Slab
Slab of dimension 1m×1m×0.12m was casted having reinforcement of
10mmø@150mmc/c
 Reinforcement provided in both transverse and longitudinal direction
 The coconut shells were placed in the intermediate areas of steel
reinforcement as shown in Fig.3
 Placing of concrete
 Curing of concrete and is done for 28 days
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Department of Civil Engineering, MBCCET Peermade

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Department of Civil Engineering, MBCCET Peermade
Fig.3 Conventional slab before and after concreting
Fig.4 Filler slab with different loading conditions

24. TIME SCHEDULE
Department of Civil Engineering, MBCCET Peermade
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FILLER SLAB CONSTRUCTION USING COCONUT SHELL
On going
Yet to complete
completed
DECEMBER JANUARY FEBRUARY MARCH
w1 w2 w3 w4 w1 w2 w3 w4 w1 w2 w3 w4 w1 w2 w3 w4
Material collection
Material Testing
Casting of
Cube and Cylinder
Testing
Casting of Slab
Testing
Report writing
Literature review

25. Work to be Done.
 Test for cube
 Test for cylinder
 Experimental investigation for slab
 Flexural test
 Crack Pattern
 Comparison between filler slab and conventional slab
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Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

26. REFERENCES
1. Abhishek. P, Mohammed Zakiulla, K Srisha Rai.(2017) “Study of flexural behavior,
thermal variation and luminosity test on filler slabs” IJRET: International Journal of
Research in Engineering and Technology 6(5), 864-872
2. Mr. Amit D Chougule, Mr.Manoj H. Mota, Dr. Mrs. Ushadevi S Patil (2015) “To study
the filler slab as alternative construction technology” Journal Of Information, Knowledge
And Research In Civil Engineering, 3(2), 199-202
3. Deepika Dinesh, Akhil P.A (2018) “Study on Flexural Behaviour of RCC Slab Filled with
Hollow Roofing Tiles ” International Journal of Engineering and Techniques 4(3),7-11
26
Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

27. REFERENCES (Contd…)
4. M.P.Jaisingh, L.Jaisingh & B.Singh (2014)“A RC filler slab with non non-
autoclaved cellular concrete blocks for sustainable Construction” Journal Of
Information, Knowledge And Research In Civil Engineering. 4(6), 862-878
5. Mr. Muhammad Shafiq Mushfiq, Shikha Saini , Nishant (2017) “Experimental
Study On Bubble Deck Slab ” International Research Journal of Engineering and
Technology (IRJET), 4(5),1000-1004
6. Nilanjn sengupta (2018)“Investigation on cost effective slab system” International
Journal of Civil Engineering and Technology 9(7),1000-1011
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Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

28. REFERENCES (Contd…)
7. Bhagyashri G. Bhade , S.M Barelikar (2016) “An Experimental Study On Two Way
Bubble Deck Slab With Spherical Hollow Balls” International Journal of Recent Scientific
Research Vol. 7, Issue, 6.
8. Ayush Srivastava, (2014) “Cost Effective And Innovative Housing Technology”,
International Journal for Scientific Research & Development. Volume 2, Issue 6
9. Neeraj Tiwari, Sana Zafar, (2016). “Structural Behaviour of Bubble Deck Slabs and Its
Application” IJSRD International Journal for Scientific Research & Development| Vol 4,
Issue 02.
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Department of Civil Engineering MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

29. REFERENCES (Contd…)
10. M.Surendar, M.Ranjitham (2016). “Numerical and Experimental Study on Bubble Deck
Slab” Research Article 6(5),5959-5962
11. Churakov A.G. (2014) “Biaxial hollow slab with innovative types of voids”,
IJRASET ,Construction of Unique Buildings and Structures. 6(21),70-78
12. Saifee Bhagat (2010) “ Parametric study of R.C.C voided and solid slab ” IOSR
Journal of Mechanical and Civil Engineering. 8(6), 42-48
29
Department of Civil Engineering, MBCCET Peermade
FILLER SLAB CONSTRUCTION USING COCONUT SHELL

30. REFERENCES (Contd…)
13. Ali Haider Jasvi, D.K. Bera(2015) “Sustainable use of low cost building materials
in the rural India”, International Journal of Research in Engineering and Technology
04(13),534-544
14. Harshit Varshney et.al(2017) “A Review Study on Bubble Deck Slab”
International Journal for Research in Applied Science & Engineering Technology
(IJRASET) 5(10),2136-2139
15.Rittik Bhowmik et.al(2017) “Review on bubble deck with spherical hollow
balls” International Journal of Civil Engineering and Technology
(IJCIET),8(8),979-987
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FILLER SLAB CONSTRUCTION USING COCONUT SHELL
Department of Civil Engineering MBCCET Peermade

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FILLER SLAB CONSTRUCTION USING COCONUT SHELL