IP ORAL DEFENSE (1st Yr)

8/7/2019 IP ORAL DEFENSE (1st Yr)

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A Feasibility Study On The

UseOfEggshellPowder As Strengthening Material For Concrete

Teacher: Mrs. Ma. Eloisa B. Albert

Outstanding Men For God : Class Of 1-O 2011Luis Enriquez, Francis Santos + Nicco Viado


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I

ntroduction


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ProblemStatement The purpose of the study is to determine if the

addition of different amounts of eggshell powder

(EsP) in concrete will affect the concrete outputsstrength.


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NullHypothesis There is no relationship between the addition of

different amounts of eggshell bits and the

strength of the concrete product.


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SignificanceOfTheStudy The group decided to pursue this topic because

it is a concrete way of building the nation by

providing an alternative means of recyclingeggshells, thus reducing waste. The group also

wishes to explore different factors to provide

safe, economical and innovative housing in the

Philippines.


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Methodology


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PreparationOfEggshell Eggshell from fresh eggs

air dried, crushed with mortar and pestle then

powdered with a grinder


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MixingProce

dure

Gravel: freed of organic matter (soil, grass, etc.)

1 part cement, 2 parts sand, 3 parts gravel Plastic cup

All materials combined

+ water until all cement is used up Smooth consistency

left to dry completely

air bubbles eliminated through tapping


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TestingOfProduct

Dropped twice from a 1-storey height

No. of cracks were counted


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na

lysis


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No.ofCracksInRelationtoAmountOfEggshellAddedFirst Round of Testing

amt. of eggshell(tbsp)

No. of Cracks

Trial

1 2

0 1 1

1 1 2

2 5 21


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Observations Gravel protruding in set-up with most EsP

Assumed to be caused by lack of water and difference

in ratio of components

Set-up was not mixed after adding EsP

Cavities were formed in the product

Weakening the product


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ThirdRoundObservations

Set-ups with EsP did not dry completely in the

time frame allotted.

Less cracks were incurred by set-ups with noadded EsP


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CementAndEggshell Eggshell = Calcium Carbonate = Calcite (CaCO3)

CaCO3

Calcium Carbonate

CaCO3

Calcium Carbonate

EggshellEggshell CementCement


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CaCO3 Main ingredient in CEMENT

CEMENT: adhesive used in construction

ADHESION: intermolecular attraction between substancesthat are unlike and in surface contact, causing them to cling

together

Calcite

Mineral made of Calcium Carbonate

Source of Cements Main Ingredient

Highly abundant


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Conclusion


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Conclusion Eggshell Powder is NOT a strengthening

material but it is used to bind the materials

together.

Therefore, it does not directly affect the

products strength.

Ratio of materials DO.


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Sources


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References Microsoft Encarta Encyclopedia Premium DVD

2007

"Cement." Concrete (construction)

http://www.doityourself.com/stry/h2pourconcret

e

Microsoft Encarta Dictionary

IP ORAL DEFENSE (1st Yr)

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