1) The document presents the results of a study on the properties of concrete with egg shell powder (ESP) as a partial replacement for cement.
2) Testing was conducted with ESP replacement levels of 0%, 5%, 10%, and 15% to determine the compressive strength and elasticity modulus of concrete mixtures at 7, 14, and 28 days.
3) The highest compressive strength of 22.85 MPa was found in the control concrete without ESP, while the highest strength with ESP was 21.24 MPa for a 5% replacement at 28 days. However, elasticity modulus was highest at 1761 MPa for a 10% ESP replacement.
2. NAME ID
SURAYAAKHTER 2161391065
MD. JAHIR UDDIN 2173391004
MD. RAHAT HOSSEN ARAFAT 2173391017
MD. ABI ABDULLAH 2173391024
MD. MOZAHARUL ISLAM 2173391030
MD. ASHRAFUL ALAM
Assistant Professor
Department of Civil Engineering
Uttara University (UU)
A THESIS BY
SUPERVISOR
5. INTRODUCTION
Concrete has been the most widely used construction material
throughout the world.
Concrete is a composite material composed of fine and coarse
aggregate bonded together with a fluid cement (cement paste) that
hardens (cures) over time.
In the past, lime based cement binders, such as lime putty, were often
used but sometimes with other hydraulic cements, such as a calcium
aluminate cement or with Portland cement to form Portland cement
concrete.
The most common binding materials used in concrete is cement.
6. INTRODUCTION (contd.)
Supplementary cementing materials (SCMs) contribute to the
properties of hardened concrete through hydraulic or pozzolanic
activity. Typical examples are fly ashes, slag cement (ground,
granulated blast-furnace slag), and silica fume, but egg shell powder
(ESP) also can use as SCMs for cement.
The research have been conducted to study of concrete involving
ESP as partial replacement of cement for concrete production.
7. The objectives of this study are given below:
To determine the compressive strength of concrete by using
different mixing ratio & percentages of concrete with egg shell
powder as partial replacement of cement for 7, 14 and 28 days.
To determine the unit weight and modulus elasticity of concrete
by using different mixing ratio percentages of concrete with egg
shell powder as partial replacement of cement for 28 days.
OBJECTIVES
9. Description Value
Normal Consistency (%) 27.5
Initial Setting Time (min.) 59
Final Setting Time (min.) 169
Fig. 1: Cement
METHODOLOGY (contd.)
Selection of materials
Ordinary Portland cement (seven rings cement)
10. Description Value
FM 7.45
Absorption Capacity (%) 16.6
Specific
Gravity
SSD 2.02
OD 1.74
Apparent 2.44
Unit Weight
(Kg/m3)
OD 720
SSD 839
METHODOLOGY (contd.)
Selection of materials
Coarse Aggregate (Brick chips)
Fig. 2: Coarse Aggregate
11. Description Value
FM 3.1
Absorption Capacity (%) 6.4
Specific
Gravity
SSD 2.42
OD 2.27
Apparent 2.66
Unit Weight
(Kg/m3)
OD 1480
SSD 1487
METHODOLOGY (contd.)
Selection of materials
Fine Aggregate (Sylhet sand)
Fig. 3: Fine Aggregate
12. Description Value
Specific
Gravity
SSD 1.78
OD 1.40
Apparent 2.28
Unit Weight
(Kg/m3)
OD 400
SSD 510
METHODOLOGY (contd.)
Selection of materials
Egg Shell Powder (processed from egg shell)
15. Age of
test
(Days)
Test type
Mix design
ratio
(by volume)
Water cement
ratio (by
weight)
No. of cylinders tested with different
percentage of egg shell powder
Control 5 % 10 % 15 %
7 Compressive
1:1:2
1:1.5:3
1:2:4
0.45
3 3 3 3
14 Compressive 3 3 3 3
28 Compressive 3 3 3 3
Total 108 Cylinders (36 per ratio)
METHODOLOGY (contd.)
Details of Specimen
20. Sl. No. Age of
test
Mix design
ratio
(by volume)
Water cement
ratio
(by weight)
Average compressive strength with different
percentage of egg shell powder (MPa)
Control 5 % 10 % 15 %
01 7 days
1:1:2 0.45
18.60 16.59 13.06 15.70
02 14 days 18.47 16.00 9.76 20.40
03 28 days 22.85 20.78 11.36 21.24
01 7 days
1:1.5:3 0.45
14.90 8.24 9.56 8.04
02 14 days 15.02 10.42 9.49 10.70
03 28 days 22.11 10.48 14.25 12.90
01 7 days
1:2:4 0.45
10.64 14.53 6.52 9.30
02 14 days 9.99 14.38 9.18 9.49
03 28 days 12.94 18.26 10.34 14.05
RESULTS & DISCUSSIONS
Compressive Strength Result
24. Sl. No.
Mix design
ratio
(by volume)
Age of
Test
Water
cement ratio
(by weight)
Average Elasticity with different percentage
of egg shell powder (MPa)
Control 5 % 10 % 15 %
01 1:1:2
28 days 0.45
1036.25 866.20 990.85 990.85
02 1:1.5:3 944.67 1396.30 990.67 1037.47
03 1:2:4 926.41 894.63 1760.90 792.33
RESULTS & DISCUSSIONS
Modulus of Elasticity Result
26. CONCLUSIONS
The following conclusions can be drawn based on the experimental and analytical
research reported in this study:
The highest compressive strength was found 22.85 Mpa on normal concrete, mix
ratio 1:1.5:3 with 0.45 of w/c ratio at 28 days. and highest compressive strength
with ESP was 21.24 Mpa, mix ratio 1:1:2, 0.45 of w/c ratio at 28 days. That shown
ESP not good enough as a replacement of cement.
The Modulus of Elasticity of concrete with Egg shell powder was suitable to use.
Elasticity was increased in use of ESP. The highest elasticity was found 1761 Mpa
with the 10% of ESP using brick chips, mix ratio 1:2:4 with 0.45 of w/c ratio.
27. RECOMMENDATIONS
Some of these future research prospects are recommended below:
Different percentage of Egg shell powder can be used to changing
the variation of result.
Different types of admixtures can be used to investigate the
deviation of test results.
In this study, water cement ratio and mix ratio was kept 0.45
respectively. Different water cement ratios can be used to validate
this test result.
