A very good presentation on self compacting concrete.

1. WELCOME

2. K. J. SOMAIYA POLYTECNIC
THIRD YEAR
CIVIL ENGINEERING DEPARTMENT

3. GROUP MEMBERS:-
1. ONKAR KAMBLE FCEG12125
2. SHUBHAM HARNE FCEW12121

4. TOPIC
SPECIAL TYPE OF
CONCRETE
SELF COMPACTING
CONCRETE

5. CONTENTS
INTRODUCTION
MATERIALS USED
PROPORTION
PROPERTIES OF SCC
TESTS ON SCC
BENEFITS & DISADVANTAGES
CONCLUSION

6. SPECIAL CONCRETE
If one or more of the following are outside a
‘Normal Range’ :
 MATERIALS
 ENVIROMENTAL CONDITIONS
 PROPERTIES
 METHODS OF PLACING
 CONDITIONS OF PLACING

7. INTRODUCTION

8. WHAT IS SCC ?
DEFINITION
REQUIRMENTS
 HAVE A FLUIDITY THAT ALLOWS SELF –
COMPACTION WITHOUT EXTERNAL ENERGY
 REMAIN HOMOGENEOUS IN A FORM DURING AND
AFTER THE PLACING PROCESS AND
 FLOW EASILY THROUGH REINFORCEMENT
HISTORY

9. MATERIALS USED
CEMENT
SAND
COARSE AGGREGATES
POTABLE WATER
ADMIXTURES

10. MINERAL ADMIXTURES:
i) FLY ASH
ii) GGBS
iii) SILICA FUME
iv) STONE POWDER
v) FIBRS

11. CHEMICAL ADMIXTURES:
i) SUPER PLASTICIZER
ii) VISCOSITY MODIFYING AGENTS (VMA)
iii) AIR TRAINING AGENTS (AEA)

12. PRPORTION
WATER : 15% OF VOLUME
POWER : 15% OF VOLUME
FINE AGGREGATE : 20% OF VOLUME
COARSE AGGREGATE : 50% OF VOLUME

13. FLOW CHART FOR ACHIEVING SELF
COMPACTIBILITY
Reduction of
water to
binder ratio
Limitation of
coarse
aggregate
content &
maximum size
Addition of
mineral
admixture
Usage of
Super
plasticizer &
VMA
High segregation
resistance of mortar
& concrete
High Deformability of
mortar & concrete
Self compactibility

14. PROPERTIES

15. PROPERTIES OF FRESH SCC
WORKABILITY
SEGREGATION RESISTANCE
OPEN TIME

16. PROPERTIES OF HARDENED SCC
DURABILITY
COMPRESSIVE STRENGTH
 TENSILE STRENGTH
 BOND STRENGTH
NO SHRINKAGE AND CREEP

17. TESTS

18. TEST TO BE CARRIED OUT PROPERTY TO BE
DETERMINED
1. SLUMP TEST FILLING ABILITY
2. V-FUNNEL FILLING ABILITY
3. ORIMET FILLING ABILITY
4. J-RING PASSING ABILITY
5. L-BOX TEST PASSING ABILITY
6. U-BOX TEST PASSING ABILITY
7. FILL BOX TEST PASSING ABILITY
TEST ON SCC

19. SLUMP FLOW TEST
V-FUNNEL
TEST

20. J- RING
TEST
ORIMET
TEST

21. L - BOX TEST
U - BOX
TEST

22. BENEFITS

23. BENEFITS OF SCC
FASTER CONSTRUCTION TIMES
LOWER OVERALL COSTS
BETTER SURFACE FINISHES
EASIER PLACING
THINNER CONCRETE SECTIONS
GREATER FREEDOM IN DESIGN
IMPROVED DURABILITY, AND RELIABILITY OF
CONCRETE STRUCTURES

24. FACTORS IMFLUENCING SCC
MORTAR
COARSE AGGREGATE:
SHAPE & GRADING
 W/C RATIO
 AMOUNT SUPER PLASTICIZER DOSAGE

25. DISADVANTAGES OF SCC
More precise measurement and monitoring of the
constituent materials.
Costlier than the conventional concrete based on
concrete material cost.
The cost of SCC is 10-15 % higher than the
conventional concret.
There is no specific INDIAN STANDARD CODAL
PROVISION for mix design.

26. USE IN INDIA
 High rise tower 80 storey –Palais Royale,
Sri Ram Mills compound, Mumbai.
 Nathani Heights 75 storey, Bombay central
 Tarapur Automic Project, Maharashtra.
 Metro Project, Delhi.
 Nuclear power plant Kaiga, Karnataka.

27. VIDEO

28. CONCLUSION

29. CONCLUSION
SCC can be effectively placed in most congested areas
USEFUL where normal methods of vibration are not
possible.
When self-compacting concrete becomes so widely
used that it will be seen as the “standard concrete”
rather than as a “special concrete”.

30. THANK YOU…!