"The effect of groundnut shell ash & glass dust on concrete strength". Today developing nations are witnessing an unprecedented pace of urbanization in the wake of industrialization and globalization. This is giving rise to an ever-increasing demand for housing and infrastructure to support the growing population and its activities. Energy is the single-most significant Motivator of this urban development and buildings stand as the most visible expressions of this development. The study of the Building Energy Analysis has become a topic of great importance, because of the significant increase of interest in energy sustainability. Energy behavior of building is Primarily Influenced by Location, Outdoor Temperature and also the Size, Shape & Thermal Property of the Building. Occupants and their behavior, factors of sublevel components such as heating, ventilating and air conditioning (HVAC), and lighting systems further influence the building energy system. For these factors, non-calibrated models cannot efficiently predict the energy usage of building. So, there is a need for real time image of energy usage in buildings. The Aim of the project is: To examine compressive strength of concrete composed of cement, fine aggregate (sand), coarse aggregate (stone chips) and water. To determine compressive strength of concrete composed of all the elements of traditional concrete in addition of some additives (such as – gnsa, glass dust) with cement. All these additives are used in different percentages of dry cement. Also make a comparative study of compressive strength of concrete specimens (traditional and with additives) and to observe for better option of concrete.

1. 1
Welcome to Our
Presentation
Thesis Defense (Spring 2018)
Department of Civil Engineering, UITS, Dhaka.

2. THESIS TITLE
2

3. Thesis Supervisor
Iftesham Bashar
Lecturer, Dept. of Civil,
U.I.T.S. Presented
By
Md. Rakibul Hasan
142010710033
Md. Joynal Abedin
142010710043
Md. Rashidul Islam
142010710044
Md. Ariful Islam
142010710039
3

4. Outlines of the Study
 Introduction
Introduction
Objectives of the Study
Methodology of Present Study
Results & Discussion
Conclusion
Recommendation
4

5.  Concrete is one of the main construction materials used
in civil engineering structures. The raw materials to
make concrete are cement, coarse aggregate, fine
aggregate and water.
 Recently, a lot of research initiatives have been carrying
out to invent more strengthening as well as economic
construction materials. Hence, there is a significant
scope to experimentally investigate some new options of
materials as well as additives (used with cement), which
may be expected to enhance concrete strength.
Introduction
5

6.  To examine compressive strength of concrete specimens
(traditional)
 To determine compressive strength of concrete
composed of all the elements of traditional concrete in
addition of some additives (such as – iron dust, glass
dust, clay) with cement. All these additives will be used
in different percentages of dry cement.
 To make a comparative study of compressive strength of
concrete specimens (traditional and with additives) and
to observe for better options of concrete.
6
Objectives of the Study

7. Materials
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Name of properties Test Result
(Bashundhara Cement)
Standard Requirements
(according to ASTM)
Compressive strength (28 Days) 7600 psi -
Initial Setting Time 135 minutes Not less than 45 minutes
Final Setting Time 320 minutes Not more than 375 minutes
Normal Consistency 25% -
Commercially available Ordinary Portland Cement
(Bashundhara Cement) has been used for this study. This cement has a
specific gravity of 3.15.
 Cement

8. 8
Fine Aggregates
-In the study, Sylhet Sand is used as fine aggregate (fineness modulus
= 3.94).
Materials (contd.)
Sylhet sand

9. 9
 Coarse Aggregates
-In the study, stone chips is used as coarse aggregate (fineness
modulus = 8.39).
Materials (contd.)
Stone Chips

10. 10
 Additives
-In the study, three (3) types of additives have been used:
(i) Iron Dust
(ii) Glass Dust
(iii) Clay mass
Materials (contd.)
Iron dust
Glass dust
Clay mass

11. Selection of materials for making
concrete and proportioning
Collection of materials and
additives (for producing concrete
specimens)
Sieve Analysis of Aggregates
and Additives
Preparation of Concrete
Cylinders and storing at lab
Data Collection (compressive
strength of concrete samples
after one week interval)
Compare and Observe for
Better Options of Producing
Concrete
Recommendation for Future
Research
Testing Concrete Samples
11
Methodology
Figure: Flow-Chart showing the entire research plan

12. Methodology (contd.)
-Here are the steps followed to conduct the compressive
strength of concrete specimens:
(i) Collection of Materials:
 Glass dust have been collected from a construction
project at Baridhara Diplomatic Zone, Dhaka (fineness
modulus = 2.15).
 Stone chips and Sylhet sand have been collected from
suppliers near UITS.
 Iron dust has been collected from a workshop at
Nawabpur, Dhaka (fineness modulus = 4.94).
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13. Methodology (contd.)
(ii) Preparation of concrete cylinders
(iii) Casting and curing of the specimens
(iv) Sample testing
 For cylinder casting, each additive of cement at 25%,
50% and 75% respectively have been mixed.
 The ingredients of concrete at a ratio 1:2:4 have been
used.
 The w/c ratio of 0.45 has been used for making concrete
specimens.
 The compressive strength data have been collected after
7 days, 14 days, 21 days and 28 days respectively for
each category of concrete sample.
13

14. Methodology (contd.)
A total of ten (10) combinations of materials have been employed for test:
(A) Cement + sylhet sand + stone chips + water = control specimen
(B) Cement + 25% iron dust + sylhet sand + stone chips + water
(C) Cement + 50% iron dust + sylhet sand +stone chips + water
(D) Cement + 75% iron dust + sylhet sand +stone chips + water
(E) Cement + 25% glass dust + sylhet sand + stone chips+ water
(F) Cement + 50% glass dust + sylhet sand + stone chips+ water
(G) Cement + 75% glass dust + sylhet sand + stone chips+ water
(H) Cement + 25% clay + sylhet sand + stone chips+ water
(I) Cement + 50% clay + sylhet sand + stone chips+ water
(J) Cement + 75% clay + sylhet sand + stone chips+ water
-The mold used for preparing cylinder specimens of concrete of diameter = 4
inch and height = 8 inch
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15. Results & Discussion
15
Specimen
Type
Compressive Strength (kN/m²)
7 Days 14 Days 21 Days 28 Days
Control
Specimen
5736.868 9569.174 12124.044 8036.252
Iron 25% 7653.021 10207.891 9952.404 9824.661
Iron 50% 7653.021 9824.661 8930.456 10207.891
Iron 75% 6375.586 8547.226 11102.096 9441.430
Glass 25% 8036.252 11229.839 11996.301 7780.764
Glass 50% 7014.303 8547.226 9441.430 10718.866
Glass 75% 5609.125 8547.226 8674.969 9441.430
Clay 25% 5481.381 7780.764 6375.586 8802.713
Clay 50% 3948.459 5736.868 8419.482 8291.739
Clay 75% 4331.689 9569.174 5225.894 6758.816

16. 16
Comparative Compressive Strengths of Control Specimen with
Specimens Containing Various Percentages (%) of Iron Dust Additives
Specimen type
Compressive Strength (kN/m2
)
7 Days 14 Days 21 Days 28 Days
Control Specimen
5736.868 9569.17 12124 8036.25
25% Iron Dust 7653.021 10207.9 9952.4 9824.66
50% Iron Dust 7653.021 9824.66 8930.46 10207.9
75% Iron Dust 6375.586 8547.23 11102.1 9441.43

17. 17
Comparative Compressive Strengths of Control Specimen with
Specimens Containing Various Percentages (%) of Glass Dust Additives
Specimen type
Compressive Strength (kN/m2
)
7 Days 14 Days 21 Days 28 Days
Control Specimen
5736.87 9569.17 12124 8036.25
25% Glass Dust 8036.25 11229.8 11996.3 7780.76
50% Glass Dust 7014.3 8547.23 9441.43 10718.9
75% Glass Dust 5609.13 8547.23 8674.97 9441.43

18. 18
Comparative Compressive Strengths of Control Specimen with
Specimens Containing Various Percentages (%) of Clay Additives
Specimen type
Compressive Strength (kN/m2
)
7 Days 14 Days 21 Days 28 Days
Control
Specimen 5736.87 9569.17 12124 8036.25
25% Clay 5481.38 7780.76 6375.59 8802.71
50% Clay 3948.46 5736.87 8419.48 8291.74
75% Clay 4331.69 9569.17 5225.89 6758.82

19. 19
Compressive Strength Bar-Charts For Control Specimen VS 25%
Iron Dust, 50% Iron Dust, 75% Iron Dust, 25% Glass Dust, 50%
Glass Dust, 75% Glass Dust, 25% Clay, 50% Clay, & 75% Clay.

20. Outcomes
 About Iron Dust:
-If compared to the control specimen, it has been observed
that with the increase of percentage of iron dust from
25% to 50% of dry weight of cement, the compressive
strength of concrete specimens increase considerably
after 7 days, 14 days, 21 days and 28 days.
-But, for percentage of iron dust greater than 50%,
compressive strength of concrete specimens tend to
decrease.
20

21. Outcomes
 About Glass Dust:
-When compared to the compressive strength of
control specimen, it has been noticed that upto
addition of 25% glass dust with cement, the
compressive strength of concrete samples increase.
- But, for glass dust percentage greater than 25%, does
not help increasing the compressive strength, rather
it tend to decrease the strength.
21

22. • About Clay:
-While compared to the compressive strength capacity
of control specimen, the specimens with clay
additives show very inconsistent results; therefore
cannot be recommended for using as an ingredient
of concrete.
22
Outcomes

23. Conclusion
Conclusion can be summarized into several aspects:
Use of iron dust as additives with cement upto 50%
of dry weight of cement increases compressive
strength of concrete.
 Upto 25% addition of glass dust additives enhance
compressive strength of concrete.
 Addition of clay is not at all effective in improving
compressive strength of concrete.
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24. Based on the present study, the following points may
be recommended for future study:
 The present research may be extended to reveal any
alternate option of binding material in concrete
instead of cement, which is used traditionally.
 A study to discover different strengthening as well
as economically feasible materials instead of
traditionally used reinforcement (steel) may be
conducted.
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Recommendation

25. Our Sincere Gratitude to the Honorable Teachers and
Guests.
Thank You for Your Attention and Time.
25
Have a Nice Day