Done by Sand Group, Ahmed bin Hanbal Independent Secondary school for boys Concrete is a composite material composed mainly of water, aggregate, and cement. During construction, a substantial amount of natural resources are consumed, which makes the construction industry a strong candidate for reusing waste as raw materials. In particular, road construction is a unique case. The road network is large and disseminated throughout a wide geographical region. For these reasons, there is great potential to reuse waste materials in both construction and maintenance of roads.

1. AL-Bairaq
I am Discovering Materials
Concrete
GROUP NAME : SAND
Abdul Aziz hussain Ahmed Mohammed
Abulmajid masoud Mohammed ahmed

2. Introduction
• Concrete: is a composite material
composed mainly
of water, aggregate, and cement.

3. Activity 1: Hunting for objects made of
concrete
The uses of concrete around us are many..
eexamples include buildings, bridges, runways ,
Stadiums.

4. Activity 2: Comparing different kinds
of cements
We have to take three samples ..in each one we
have added something different.. in the first was
the only cement and water, and in the second
sample we added sugar to cement and water ,in
third sample we added Calcium chloride.. and
water and cement was same in all samples .

5. Activity 2: Comparing different kinds
of cements
sample cement Calcium chloride sugar
A
B
C
Results:-
*Sample{A} which cement and water has
only hardened in normal time.
•Sample{B} which was added sugar have
taken a long time to harden.
•Sample{C} which was calcium chloride
added to it hardened in short time with
heat from Interaction.
water

6. Activity 3{A}: Comparing different
Concrete Formulations
In this activity we chose 2 samples from this
table to try different formulations :-

7. Activity 3{B}: Comparing different
Concrete Formulations and calculating
their densities
sample mass Density
E 301.98 3.0198
I 282.01 2.795
Sample {E} Sample {I}

8. Activity 4: Testing properties of
concrete
Breaking the samples E&I
The sample E broke at the Wight of 7.7 Kg
The sample I broke at Wight of 2.6 Kg

9. Activity 4: Testing properties of
concrete
Sample E stronger than sample I ...

10. Activity 5: Testing the harden of
sample {E+}
Sample {E+} was
Reinforced concrete
This sample
broke at
weight of
9.5 Kg

11. Project : Bituminous mixtures made
with recycled concrete aggregates
During construction, a substantial amount of
natural resources are consumed, which
makes the construction industry a strong
candidate for reusing waste as raw materials.
In particular, road construction is a unique
case. The road network is large and
disseminated throughout a wide
geographical region. For these reasons, there
is great potential to reuse waste materials in
both construction and maintenance of roads.

12. Can we use recycled materials in
concrete ?
• Now with our project we can use recycled
materials in concrete by mixing them with
concrete compound .
• This operation wont cost a lot of money
because all materials come from plastic and
rubber and Construction waste.

13. Bituminous mixtures made with recycled concrete
aggregates
We bring Rubber waste and plastic with Construction
waste , we mixed them with normal concrete
composite .... It was really hard to chose the best
way to mix ...but we decided to cut the rubber as a
small pieces and it was .
• 50 g of rubber
• 30 ml of water
• 50 g of cement
• 50g of sand
• 40 g of gravel
• 30 g of Construction waste
• 20 g of plastic

14. Bituminous mixtures made with recycled
concrete aggregates
Results:
• We found that our sample harden in a normal time .
• Sample is unbreakable ...We tried to break it under
different weights and different ways and we couldn't .
• Composite concrete with rubber bear high pressure that is
broken or cracks.
• Dielectric water.
• Non-combustible.
• Resists vibrations.
• Economically is less expensive and reduces pollution in the
environment .

15. Compared between samples
60
50
40
30
20
10
0
weight
plastic and wood
normal cement
rubber

16. Bituminous mixtures made with recycled concrete
aggregates
Recommendations:
• Recommend to complete research and
financial support.
• Trying to find new materials that can be used
after recycling
• Some of the problems that we faced the
distribution of the material in the composite
rubber how to put a way that allows him to
maintain the strength of concrete and
bitumen jowl.

17. Conclusions
(Overall of the whole module)
Our experience in AL-Bairaq was a great
experience we were able to work as a group
and we learned new type of science , this
experience

18. 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, Ras Gas,
Maersk and Shell.