The document discusses different types of slabs used in construction including slab on beam, flat plate slab, and waffle slab. It provides details on the construction process for each type, which involves forming, placing reinforcement, casting concrete, compacting, leveling, and curing. Site visits were also conducted to observe examples of each slab type in real buildings.

1. SLAB

2. Presented by:
• Tonmoy Paul
• Abu Bakar Siddik Ornob
• Shaiful Kabir Porag
16-02-03-004
16-02-03-008
13-02-03-059

3. Tejkuni Bazar, Farmgate
Radio Colony, Savar
•Slab On Beam
Library Building, Gulistan Park
Sheikh r Tek, Mohammmadpur,
Dhaka- 1207
•Flat Plate Slab
Azimpur Graveyard Mosque,
Azimpur
•Flat Slab
Sher-e-Bangla Agricultural
University, Agargaon
•Waffle Slab
Visited Sites

4. WHAT IS SLAB?
 A slab is a broad, flat plate, horizontal with top and bottom surfaces parallel
or nearly so.
 It may be directly supported on beams or columns or indirectly on column by
using deep panel and column capital.

5. Types of Slab
Slab On
Beam
Flat Slab
Flat Plate
Slab
Waffle Slab

6. Construction Process of
Slab On Beam

7. 1. Shuttering/Formwork
To form a desired shape of beam and
slab
Need to carry the weight of RCC of
slab and beam until hardening of
concrete

8. To resist falling of water from concrete until
hardening
2. Providing Steel Sheets

9. 3. Maintaining Clear Cover
C.C blocks is used to maintain clear
cover
Clear Cover is needed to protect
the reinforcement from corrosion

10. 4. Reinforcement Placing
The reinforcement are knotted with one
another using GI(Galvanized Iron) wire
The reinforcement are placed in two
direction

11. 5. Concrete Casting
Casting was done monolithically where the
casting of beam and slab are done together
To reduce segregation, concrete was
dropped from low height

12. 6. Compaction
The compaction is done by a
vibrator to remove air voids and
to make sure concrete has spread
uniformly in all direction.

13. 7. Levelling
To Provide a smooth
surface
Levelling was done by
using a thick wooden
plate

14. 8. Curing
The slab was ponded by water
for 28 days
To complete hydration
reaction in order to gain
strength of concrete

15. Construction Process of
Flat Plate Slab

16. 1. Shuttering/Formwork
To form a desired shape of slab
Need to carry the weight of RCC of slab
until hardening of concrete

17. 2. Maintaining Clear Cover
C.C blocks is used to maintain clear
cover
Clear Cover is needed to protect
the reinforcement from corrosion

18. 3. Reinforcement Placing
The reinforcement are knotted with
one another using GI(Galvanized
Iron) wire
The reinforcement are placed
in two direction

19. Casting was done monolithically where
the casting of beam and slab are done
together
To reduce segregation, concrete was
dropped from low height
4. Concrete Casting

20. 5. Compaction
The compaction is done by a vibrator
to remove air voids and to make sure
concrete has spread uniformly in all
direction.

21. 6. Levelling
To Provide a smooth
surface
Levelling was done by
using a thick wooden plate

22. 7. Curing
The slab was ponded by water for 28
days
To complete hydration reaction in
order to gain strength of concrete

23. Construction Process of
Flat Slab

24. 1. Shuttering/Formwork
To form a desired shape of slab
Need to carry the weight of RCC of
slab until hardening of concrete

25. 2. Providing steel sheets
To resist falling of water from concrete
until hardening

26. 3. Maintaining Clear Cover
C.C blocks is used to maintain clear
cover
Clear Cover is needed to protect
the reinforcement from corrosion

27. 4. Reinforcement Placing
The reinforcement are knotted with
one another using GI(Galvanized Iron)
wire
The reinforcement are placed in two
direction

28. 5. Concrete Casting
Casting was done monolithically where
the casting of beam and slab are done
together
To reduce segregation, concrete
was dropped from low height

29. 6. Compaction
The compaction is done by a vibrator
to remove air voids and to make sure
concrete has spread uniformly in all
direction.

30. 7. Levelling
To Provide a smooth surface
Levelling was done by using a thick
wooden plate

31. 8. Curing
The slab was ponded by water for 28
days
To complete hydration reaction in order
to gain strength of concrete

32. Construction Process of
Waffle Slab

33. 1. Shuttering/Formwork
Need to carry the weight of RCC of slab
and beam until hardening of concrete
To form a desired shape of beam
and slab

34. 2. Providing steel sheets
To resist falling of water from concrete
until hardening

35. 3. Maintaining Clear Cover
C.C blocks is used to maintain clear
cover
Clear Cover is needed to protect
the reinforcement from corrosion

36. 4. Reinforcement Placing
The reinforcement are placed
in two direction
The reinforcement are knotted with
one another using GI(Galvanized
Iron) wire

37. 5. Concrete Casting
To reduce segregation, concrete was
dropped from low height
Casting was done monolithically where the
casting of beam and slab are done
together

38. 6. Compaction
The compaction is done by a
vibrator to remove air voids and
to make sure concrete has
spread uniformly in all direction.

39. 6. Levelling
To Provide a smooth surface
Levelling was done by using a thick
wooden plate

40. 8. Curing
The slab was ponded by water
for 28 days
To complete hydration reaction
in order to gain strength of
concrete

42. Thank you!