This document summarizes experiments conducted to compare different concrete formulations and materials. It discusses testing the properties of various cement mixtures, aggregate compositions, and water-to-cement ratios. The students found that a mixture of 50% sand and 50% gravel had the highest density. They also created a "green concrete" using less cement, silica, and fly ash, finding it was stronger than normal concrete. The goal was to make concrete that uses alternative materials to be more environmentally friendly. In conclusion, the document recommends starting to use green concrete instead of normal concrete.

1. AL-BAIRAQ
I am discovering materials 13 cycle
concrete
Al-kawthar_gold13
Rouaa El-hanni Rama saleh
Wejdan Nasser Atheer Mesfer

2. Hunting for objects made of
concrete
Comparing different kinds of
cement.
Comparing different concrete
formulations.
Testing properties of concrete.
Green concrete

3. Introduction

4. WHAT IS CONCRETE MADE OF??
CEMENT
GRAVEL
SAND
WATER

6. WE FOUND
THAT
CONCRETE IS
THE SECOND
MATERIEL
AFTER WATER
IN USING.
conclusion

7. Activity 2: comparing different kinds of cement.

8. sample Portland
cement
water additives
Salt
Cacl2
sugar
A 200g 100ml - -
B 200g 100ml 6g -
c 200g 100ml - 1g

9. THAT(B-SALT) GOT HARD
THE FIRST (CATALYST).
 THEN(A) .
THEN (C-SUGAR)
(-CATALYST).
conclusion

10. Activity 3: comparing different concrete
formulations.
 3(A):  3(B):

11. Aggregate
sample
Mass
of
sample
volume density Observation
of spaces
between
aggregate
Sand only
(fine
aggregate)
100 65 1.53 -
Gravel only
(course
aggregate)
100 70 1.42 the lowest
density
Mixed
aggregate
(50%sand-
50%gravel)
100 43 2.35 The highest
density
Mixed
aggregate
(80%sand-
20%gravel)
100 52 1.9 -
‫التجربة‬:
a3

12. Assigned
formulation
Coarse
Aggregate
(gravel)
Fine
aggregate
(sand)
Portland
cement
water
E+ 120 120 60 33
E 120 120 60 33
Activity:3b

13.  3(A):
 The best density was
when we mixed 50% of
sand and 50% of coarse
 3(B):
 We wanted to see the
difference between the
sample we added a
supporting material
and when we didn’t
add any.
CONCLUSION

14. Activity 4: testing properties of
concrete.

15. Formulati
on tested
Ratio of
water to
cement
Average
mass
needed to
break
E+ 3360=0.55 10.2Kg
E 3360=0.55 6.5kg
‫التجربة‬
4

16. THE CONCRETE WITH A
SUPPORTING MATERIAL
NEEDED MORE POWER
TO BREAK
conclusion

18. What we mean by green concrete??
Obviously we don’t
mean the color of
the concrete we
mean using
different materials
while producing it.
Then we can make a
eco-friendly
concrete ..How??
That is the question
we are going to
answer..
What is green concrete made of??
Small amount of CEMENT
GRAVEL
SAND
WATER
silica
PFA (Fly ash)

19. Why a green concrete??
We decided to make a green concrete for the
following reasons:
Reduce
carbon
dioxide
emissions

20. Why a green concrete??

21. Why a green concrete??
silica
Fly
ash

22. Formulation
tested
Ratio of
water to
cement
Average mass
needed to
break
C 3360=0.55 3.7Kg
Our goal was to make our concrete even
stronger than the normal concrete..

23. Here are some of our attempts to create the
best concrete..
120 120 36 33 24 60%
120 120 42 33 18 30%
Here are some of our attempts to create the
perfect green concrete sample..

24. Here are some pictures of the way we made
our concrete..
silica
Materials used

25. Results
SAMPLE
LOAD
Kg
A 3.7 KG
A+ 5,8 KG

26. Recommendation
Start using green
concrete instead of
normal concrete

27. Acknowledgement:
Thanks to UNISCO,QATAR
NATIONAL
COMMESSIOM,SHELL AND
CENTER FOR ADVANCED
MATERIALS, QATAR
UNIVERSITY

28. AL-BAIRAQ
I am discovering materials 13 cycle
concrete
Al-kawthar_gold13
Rouaa elhanni rama
saleh
Wejdan nasser atheer mesfer