This document discusses a study on using tamarind kernel powder as an additive in concrete to improve its strength properties. Three students conducted the study under the guidance of a professor. They tested concrete mixes with 0%, 1.5%, and 3% replacements of cement with tamarind kernel powder. Test results showed compressive strength increased with 1.5% replacement at 7, 14, and 28 days compared to the normal mix. The maximum strength was achieved with 1.5% replacement, after which strength decreased with further addition of tamarind kernel powder. The study concluded tamarind kernel powder can be used to effectively improve concrete properties and increase compressive strength.

2.  ARUN KUMAR. K.S
 RENISH. R
 JEBAHAR. J
UNDER THE GUIDENCE OF
prof. SONIYA. B

3. To Study on strength properties of
concrete with addition kernal powder as
an additive.

4.  In this project, we have to propose tamarind kernel
powder as an additive in the concrete.
 Concrete is one of the most widely used materials in
building construction.
 In morden days concrete is losing it’s properties when
subjected to environmental condition.
 Hence there is need to enhance the properties of
concrete and various additives are added in cement to
improve the properties of concrete.
 From the experimental results, it is observed that the
concrete exhibits improved compressive strength when
compared with the conventional mix.

5.  CEMENT
 TAMARIND KERNEL POWDER
 SAND
 COARSE AGGREGATE
 WATER

6. Tamarind kernel powder :
N.V Venkat seenivasan, H. Devaki VOL.7 jan 2018.
 In this research,using tamarind kernel powder in concrete possess
high workability, high dimensional stability, high durability, low
permeability and esistance to chemical attack.
 The tamarind kernel powder can improved compressive strength
spilt tensile strength and compressive strength when compared with
the conventional mix.

7. Kumar CS, ET.AL.CRT EV FOOD SCI NUTR vol.7
september 2003:450-454
 Tamarind seed is an under utilized product of the tamariend pulp
industey. Only a small potion of the seed in the form of TKP is used
as a sizing material in the textile paper and jute industery.
 The setting time of concretecan be takes 2 to3 days.
 The load carring capacity of reinforced concrete cubes is increased
with the addition of TKP.Stiffness value is increased for TKP admixed
concrete than the conventional concrete.
TATARAM.K CHAVAN, H.M.NALJUNDI SWAMY (ijltet)
vol.2 no’s october 1999:1050-1054
 The TKP can increase the workability and compressive strength. It
can increase the compressive strength.
 The gum is composed with simpler sugars material such as
guikopiranosa and of glucose xilose and galaxtose.
 Higher od starch level in powder will be increase gel strength.

8. COLLECTION OF
MATERIALS
TESTING OF MATERIALS
MIX DESIGN
CASTING
TESTING OF SPECIMEN

9. RESULTS AND CONCLUSION
COMPARISON

10. SPECIFICATI
ONS
CEMENT TARMARIND
KERNEL
POWDER
FINE
AGGREGATE
COARSE
AGGREGATE
Normal
concrete
1 - 1.58 2.44
1.5%
replacement
0.984 0.015 1.58 2.44
3%
replacement
0.969 0.036 1.58 2.44

11. The specimen of standard cube (150x150x150) mm
were used to determine the compressive strength of the
concrete three specimend were tested for 7,14 and 28 days
of each proportions partilly replacement of tamarind kernel
powder totally 9 cubes.
SI.NO NOTATIONS CUBES
1 A 3
2 B 3
3 C 3

12. Where,
A = Normal concrete
B = 1.5% tamarind kernel powder added
C = 3% tamarind kernel powder added.
MIX RATIO CEMENT FINE
AGGREGATE
COARSE
AGGREGATE
Specimen A Cement Fine aggregate Jelly
Specimen B 98.5% Cement
+1.5%
tamarind
kernel powder
Fine aggregate Jelly
Specimen C 97% cement
+3% kernel
powder
Fine aggregate Jelly

13. From the result it was found that 3% is the maximum
replacement of cement by tamarind kernel powder.

14. COMPRESSIVE STRENTH FOR CONCRETE :
Compressive strength = Ultimate compressive load (KN)
Area of cross sections of
specimen (mm2)
CONCRETE MIX DESIGN DETAILS :
SL.NO
CEMENT
(KG)
TAMARIND
KERNEL
POWDER
(KG)
% OF
TAMARIND
KERNEL
POWDER
FINE
AGGREGAT
E (KG)
COARSE
AGGREGAT
E (KG)
1 1.45 - 0% 2.19 4.37
2 1.43 0.02 1.5% 2.19 4.37
3 1.41 0.04 3% 2.19 4.37

15. 0
2
4
6
8
10
12
14
0% 15% 3%
Compressive
strength
at
7
days
(N/mm2)
% of Tamarind kernal powder
compressive strength at 7 days
compressive strength
at 7 days

16. 15
15.5
16
16.5
17
17.5
18
18.5
0% 1.50% 3%
Compressive
strength
at
14
days
(N/mm2)
% of tamarind kernel powder
compressive strength at 14 days
compressive strength
at 14 days

17. 16
17
18
19
20
21
22
23
0% 1.50% 3%
Compressive
strength
at
28
days
(N/mm2)
% of tamarind kernal powder
compressive strength at 28 days
compressive strength
at 28 days

18. The compressive strength of
concrete was increased with addition of tamarind
kernal powder TKP.The maximum strength was
observed at 0.5% addition of TKP and decreased at
0.75% addition of TKP.

19. 16
17
18
19
20
21
22
23
0% 0.50% 3%
Compressive
strength
at
28
days
(N/mm2)
% of Tamarind kernal powder
average 28 days compressive strength in
N/mm2
average 28 days
compressive strength
in N/mm2

20. The addition of TKP was found effectively improved
the properties of concrete. The compressive strength is increased with
the addition of 1.5% TKP. From the results it is conclude that tamarind
kernel powder (TKP) can be used to improve the properties of concrete.
The compressive strength of concrete cubes is increase with the addition
of TKP. Stiffness value is increased for TKP admixed concrete that the
conventional concrete. The result of compressive strength test indicated
the strength of concrete increase with respect to the percentage of TKP
is added by the weight of cement unto 1.5% of addition and gradually
the strength decreases when the percentage of TKP is added by the
weight of cement to 3% .
FUTURE SCOPE
The well defined scope in the future studies of TKP is that it can
also be replaced by cement very easily and the concrete has gives more
compressive strength.

21.  IS 456: 2000 - Indian standard code of plain and
reinforced concrete code of practice , Bureau of Indian
Standards , New Delhi.
 IS 383:1970 - Indian standard code of coarse and fine
aggregate from Natural Source for Concrete, Bureau of
Indian Standards, New Delhi.
 IS 10262-1982 – Recommended guide line for mix
design.
 IS 516-1959 - Indian Standard Methods of Tests for
strength of concrete, Bureau of Indian Standards, New
Delhi.