Done by AL-Adaam group from Dukhan Independent school for girls. Under the supervision of AL-Bairaq.

1. AL-Adaam Group.
Fatma Kulaib AL-Daraey

3. Outline
• Introduction : definition of concrete.

4. We learned that concrete has many
uses. One of the reasons concrete is so
versatile is that it can harden into
various shapes. The component of
concrete that causes it to harden is
cement.
We learned about cement. Sand, gravel,
and water are added to cement to make
concrete

5. Activity 3
Part A: observing how aggregate particles
pack
Part B: making cement and concrete
formulation and calculating their densities.
Comparing Different Concrete
Formulations

6. Part3: the relative amounts of cement, water, and aggregates in
concrete affect its density. The proportions of these components also
affect other properties of concrete.
Activity 3

10. 1- Making 2 different samples of concrete mixtures:
Sample 1: I was add coarse aggregate ,cement ,sand and
water
Sample 2: in this sample I was hatios of coarse aggregate to
fine aggregate are equal.
2- Testing the heat insulation and strength of different
samples by breaking concrete
Sample 1:
120 g sand
120 g course aggregate
60 g cement
33ml water
Sample 2:
120 g fibers
120 g aggregate
60 g cement
33ml water