Done by Iron group from Mohammad Bin Abdulaziz Al-Mana school under the supervision of Al-Bairaq

1. AL-BAIRAQ
I AM DISCOVERING MATERIALS 10
CONCRETE
Mana_Iron10
Hadi Al- Marri Saod Al-
marri
Salah al-shamri

2. OUTLINES
• Introduction
• Activity 1: Hunting for Object made of concrete
• Activity 2: Comparing Different Cement
Formulations
• Activity 3: Comparing Different concrete
formulations
• Activity 4: Testing Properties of Concrete
• Activity 5: Reinforcing Concrete
• Product Idea

3. INTRODUCTION
 Concrete is a very strong material composes
of cement, water, sand and gravels. When
reacted with water is forms a paste that
hardens with time

4. ACTIVITY 1: HUNTING FOR OBJECTS MADE OF
CONCRETE
Photos of things made of concrete
Bridges Buildings Tunnels

5. ACTIVITY 2: COMPARING DIFFERENT
KINDS OF CEMENT
 Objectives
Determine the additives that makes cement
hardens faster and slower than the normal rate
 Procedure

6. ACTIVITY 2: COMPARING DIFFERENT
KINDS OF CEMENT
 Results
 Sugar “negative catalyst” in sample B made
cement harden slower
 Salt “catalyst” in sample C made the cement
hander fast
Sample
Cement
g
Water ml
Additives
Salt
CaCl2 g
Sugar g
A 200 100 0 0
B 200 100 0 6
C 200 100 1 0

7. ACTIVITY 3: COMPARING DIFFERENT CONCRETE
FORMULATIONS
PART A: OBSERVING HOW AGGREGATE PARTIALS PACK
 Objectives
Identify the ratios of aggregates that gives the
densest concrete
 Procedure

8. ACTIVITY 3: COMPARING DIFFERENT
CONCRETE FORMULATIONS
Results
Conclusion
 The mixed sample C has the highest density
 It has 0.5 coarse aggregate to total aggregate ration
Type of sample Mass g Volume cm3 Density g/cm3
Sample A: Coarse
aggregate only
100 62 1.61
Sample B: Fine
aggregate only
100 59 1.69
Sample C: Mixed
aggregate
50:50
100 54 1.85

9. ACTIVITY 3: COMPARING DIFFERENT CONCRETE
FORMULATIONS
PART B MAKING CONCRETE SAMPLES
 Objectives:
Preparing three samples of cement to be tested for the
strongest sample
 Procedure:
Sample Cement
g
Sand g Gravels
g
Water
ml
Water
to
Cement
Ratio
E 60 120 120 33 0.5
F 60 120 120 39 0.65

10. ACTIVITY 5: REINFORCING CONCRETE
Sampl
e
Cemen
t g
Sand g Gravel
s g
Water
ml
Water
to
Cement
Ratio
E+ 60 120 120 33 0.5
• Objectives
Prepare a sample with reinforcement and observe the
change in strength
• Materials and Quantities

11. ACTIVITY 4: TESTING PROPERTIES OF CONCRETE
 Objectives;
Test the samples prepared for their strength
 Procedure

12. ACTIVITY 4: TESTING PROPERTIES OF CONCRETE
Results
Sample Amount of water needed
to break the sample Kg
E 7.1
E+ 13.1
F 3.8
Sample E+ is the strongest sample since it reinforced with
wood, cotton and metal wire.

13. ACKNOWLEDGMENT
Many thanks to my teachers, school and AL-Bairaq team from
Center for Advanced Materials (CAM), Qatar University for
supporting us during our journey with a AL-Bairaq.
Also, I would like to thank the sponsors UNESCO, Qatar
National Commission, Ras Gas, Maersk and Shell.