Special Concrete Text

Question 1

What is cement?

Answer 1

cement is a powder when you add water it begins to set. its a key material in construction.

Question 2

Explain Concrete!

Answer 2

Concrete is a cement base material. which can have a fine aggregate when you add Sand or a coarse aggregate when you add gravel. After you added the materials you have to add water. Concrete needs time to reach the structural strengh.

Question 3

What is an Plasticizer and what a retarder?

Answer 3

Plasticizer is a chemical substance, it can added to concrete. When you add it in drie Concrete it will helps that the concrete flow easier.

Retarder is also a cemical substance. But with a retarder workers have more time to place the Concrete. Readrder delays the setting of concrete

Question 4

What is Reinforced Concrete?

Answer 4

There are Steel bars in the Concrete. Concrete is bad at resistance streching forces. But when you put steel Bars in it its good in it.

Question 5

What is Formework

Answer 5

Concrete needs Formwork. It is also namend shuttering. Without it, it would flow away.

Question 6

in situ concrete and precast concrete

Answer 6

in situ is concrete wich set an the moment while the construction work.

Precast concrete ist croncrete wich is formed in factory. You have to transport the big concrete parts