The document outlines a series of activities aimed at exploring the properties and applications of concrete, including hardness comparisons and density tests of mixed aggregates. It introduces a product idea for intelligent concrete that incorporates materials which can change color in response to temperature, enhancing safety in urban settings. The activities and findings are intended to address issues such as visibility and weather conditions affecting drivers on roadways.

1. Rawan hamdy
Bandary zainabDiamonds group

2. Out line
Introductio
n
Activity 1:
Hunting for
object made of
concrete.
Activity 2:
Comparing the
hardness of a
different kind of
cement by
adding salt and
sugar .
Activity 3:
Comparing
densities of mixed
aggregate at
samples
Activity 4:
Testing properties
of concrete
(breaking
concrete ).
Product
idea :
Intelligent
concrete

5. Cement

6. The concrete is
a very hard ​building material made
by ​mixing together ​
cement Fine aggregates Coarse aggregates water

7. Flexible
Durable
Cheap
strong

8. Hunting for objects made of concrete.

9. The high waysThe towers
The bridges
Coast protection Houses

10. : Comparing the hardness of a different
kind of cement by adding salt and sugar .

11. sample A : cement
with water only
sample B :cement
with water and salt
sample C : cement with
water and sugar

12. Time (MIN) A
(G) B(G) C(G)
0 25 21 22
3 24 23 22
6 24
23.5
22
9 24 23 22
12 24
22.5
22
15 24 22 22 0
5
10
15
20
25
30
35
40
45
1 2 3 4 5 6 7 8 9 10
with sugar
with salt
with water

13. sample temperature hardening Conclusion
A Slightly increased
then decreased
Quickly Reacted with cement
B Slightly decreased
then increased very
quickly
The fastest Salt act as a positive
catalyst
C Decreased then
Remained constant
Very slow Sugar act as a
negative catalyst

14. .

15. Comparing densities of mixed
aggregate at samples .

16. 100 G
SAND
ONLY
100 G
GRAVEL
S ONLY
50 G
SAND
AND 50G
GRAVEL
S ONLY
D = M / V

18. Assigned
formulation
Coarse
aggregates
Fine aggregates Portland cement water
E 120 120 60 33
E . R 120 120 60 33
H 240 120 60 33

19. After We mix the ingredients we put it in
Paper Molds .

23. Some problems are facing vehicles drivers like darkness of the
road (when driving at night ) and unexpected weather
conditions . That’s why we aimed to solve these problems
through improving side walks by our product idea

24. Intelligent concrete

25. Material and Methods
To make an Intelligent concrete (lightening and heat
color indicator blocks ) we will use some organic
materials which have the capability to change thier
colors with changing in temperature and other
component that will radiate light