Why reinforcement is provided in rigid pavement?

The main purposes of reinforcement in concrete roads are: the formation of tiny cracks in concrete pavement and this allows wider spacing of joints. In fact, the amount of reinforcement in concrete slab is not substantial and its contribution to the structural strength of roads is not significant.

Where are reinforcements provided in a concrete slab used for pavements?

This type of concrete pavement is built like long slab and reinforcement bars are placed at the middle of the slab. The longitudinal reinforcements, which are maintained at their position by transvers reinforcement bars, are employed to limit shrinkage cracks.

What is top reinforcement?

one may observe, top reinforcement consists of rebars placed orthogonally over the columns. These bars are bent as shown in Figure 5b in order to be easily placed during construction and to contribute to the punching shear resistance as well.

Where are rigid pavements used?

There are two main types of road construction. “Rigid pavement,” such as concrete, can only be used on stable ground. “Flexible pavement,” such as bituminous materials, as described below, can be used on ground where some movement is expected.

What is the main purpose of reinforcement in concrete?

Reinforcement for concrete is provided by embedding deformed steel bars or welded wire fabric within freshly made concrete at the time of casting. The purpose of reinforcement is to provide additional strength for concrete where it is needed.

What is reinforced concrete pavement?

Continuously Reinforced Concrete Pavement (CRCP) is constructed with steel reinforcing bars placed within the concrete along the entire length of the pavement. CRCP naturally forms tight transverse cracks to evenly transfer loads.

Why is reinforcement important in concrete?

What is reinforcement in slab?

Reinforcement detailing of a slab is done based on its support conditions. In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel. In two way slab main reinforcement is provided along both direction.