compessive study of concrete by partial replacement of concrete with mechaudin

1. Experimental Study On Compressive Strength Of Concrete By
Partial
Replacement of Cement with Metakaolin
SUBMITTEDBY :-
SAJIDALAM (CE/048/14)
DEEPAKKUMAR (CE/049/14)
MD. ZAHIDANWAR. (CE/051/14)
RAVISHROHIT (CE/053/14)
DEEPAKKR. VISHWAKARMA (CE/756/14)
UNDERTHEGUIDANCEOF :- PROF. Dipikakumari

2. CONTENTS
1. Objective
2. Introduction
3. About metakaolin
4. Advantages
5. Uses
6. Materials
7. Experimental test
8. conclusion

3. OBJECTIVE
The main aim of this experimentation is to study the effect of partial replacement of
cement by metakaolin on the properties of high performance concrete.
Metakaolin reduces pollution.
It also produces lighter weight of concrete than normal concrete.

4. INTRODUCTION
Cementitious materials are often used to reduce cement contents and improve the
workability of fresh concrete.
increase strength and enhance durability of hardened concrete. Cementitious material
used in the manufactured concrete products industry.

5. LITERATURE REVIEW
Sabir.B.B et al (2001) carried out a study on the utilization of Metakaolin as pozzolanic material for
mortar and concrete and mentioned about the wide range application of Metakaolin in construction
industry . They concluded that Metakaolin alters the pore structure in cement paste mortar and concrete
and greatly improves its resistance to transportation of water and diffusion of harmful ions which lead to
the degradation of the matrix.

6. Jian-Tong Ding et al (2002) : experimentally found out the effects of Metakaolin on the properties of
Concrete. Experimental investigation with seven concrete mixtures of 0, 5, 10, and 15% by mass
replacement of cement with high-reactivity Metakaolin. The effect of Metakaolin on the workability,
strength, shrinkage, and resistance to chloride penetration of concrete was investigated the performance
of metakaolin was found to be better than normal concrete.

7. EXPERIMENTAL MATERIALS
• METAKAOLIN
• CEMENT
• AGRREGATES–
1) COARSE AGGREGATE
2) FINE AGGREGATE

8. What is Metakaolin?
Metakaolin is a dehydroxylated form of the clay mineral kaolinite.
The particle size of metakaolin is smaller than cement particles.
It’s obtained by calcination of kaolinitic clay at temperatures from 700°C to 800°C.

9. calcination
Al2Si2O5(OH4) 700-9000C Al2O32SiO2 + 2H2O
Kaolin Metakaolin

10. ADVANTAGES
• Increased compressive and flexural strengths
• Reduced permeability (including chloride permeability).
• Increased resistance to chemical attack.
• Increased durability.
• Enhanced workability and finishing of concrete.
• Reduced shrinkage, due to “particle packing” making concrete denser.

11. USES
• High performance, high strength, and lightweight concrete.
• Precast and poured-mold concrete.
• Fibercement and ferrocement products.
• Glass fiber reinforced concrete.

12. Cement:
ORDINARY PORTLAND CEENT OF 43 GRADE
AGGREGATE:
COARSE AGGREGATE: 20mm in size
FINE AGGREGATE: it passing through 4.75mm in sieve

13. Mix proportions
MIX CEMENT IN
(gm)
METAKAOLIN
IN (gm)
FINE
AGGREGATE
IN (gm)
COARSE
AGGREGATE
IN(gm)
W/C (%)
M1 1500 0 2250 4500 43
M2 1425 75 2250 4500 43
m3 1350 150 2250 4500 43
M4 1275 225 2250 4500 43
m5 1200 300 2250 4500 43

14. procedure
1. Select the mould size(150*150*150)
2. Taking M20 grade of concrete(1:1.5:3)
3. Vibrate the concrete
4. Curing
5. Compressive strength test

15. Preparation of m20

16. Vibrate the concrete

17. curing

18. COMPRESSIVE STRENGTH TEST
For compressive strength test, cube specimens
of dimensions in 150x150x150mm were casted.
The moulds were prepared with 0%, 5%, 10%,
15% and 20% of metakaolin sample. The
samples were tested for their compressive
strength at 7 and 28 days as per IS 516-1959.

19. observation
S No. Mix Proportionof
Metakaolin
Date AppliedLoad(KN) Compressive strength
(N/mm2)
% of compressive
strengthincrease
1 0% 27/03/18 390 17.33 -
2 5% 28/03/18 395 17.55 1.27
3 10% 28/03/18 420 18.67 7.73
4 15% 29/03/18 500 22.22 28.21
5 20% 29/03/18 400 17.78 2.60
Compressive strength for 7 days

20. Compressive strength for 28 days
S No. Mix Proportion of
Metakaolin
Date AppliedLoad(KN) Compressive
strength
(N/mm2)
% of compressive
strengthincrease
1 0% 17/04/18 490 21.78 -
2 5% 18/04/18 510 22.67 4.08
3 10% 18/04/18 540 24.00 10.19
4 15% 19/04/18 630 28.00 28.55
5 20% 19/04/18 550 24.44 12.21

21. Compressive strength for 7 and 28 days
17.33 17.55
18.67
22.22
17.78
21.78
22.67
24
28
24.44
0
5
10
15
20
25
30
0 5 10 15 20
CompressiveStrengthinN/mm2
% Of Metakaolin→
For 7 Days
For 28 Days

22. Future scope
1) Other levels of replacement with Metakaolin can be researched.
2) Study on china clay waste can open new horizons in use of blended cement.
3) There is a scope for further research to develop self compacting concrete using industrial
wastes.
3) For use of Metakaolin concrete as a structural material, it is necessary to investigate the
behavior of reinforced Metakaolin concrete.

23. CONCLUSION
Cement replacement up to 15% with Metakaolin leads to increase in compressive strength for M-20 grade
of concrete. From 15% there is decrease in compressive strength for 7 days of curing period.
By effective usage of Metakaolin in optimum percentage in concrete may make concrete economic and
environment friendly.
The optimum dose of metakaolin for achieving higher compressive strength is 15%

24. References
[1] Poon C.S., Azhar S., Mike A., Wong Y.L. (2003),“Performance of metakaolin concrete at elevated temperatures”, Cement &
Concrete Composites, Vol.25, pp 83–89.
[2] https://www.scribd.com/document/136232982/Study-Properties-of-Concrete-With-Metakaolin-as-Partial-Replacement-of-
Cement
[3] www.Wikipedia.com
[4] www.youtube.com

25. Thank you