2. Principle of reinforced concrete

2.1 Constitution

Reinforced concrete is the combination of two materials: concrete and steel.

Concrete is a heterogeneous material: it's an assembly of gravel and sand joined by a binder (cement) and water. However, concrete has poor resistance to tensile stress, which tends to dissociate the constituent elements.

2.2 Tensile strength

In order to use this material in a construction where certain parts are under tension, the principle of reinforced concrete consists...