types of rigid pavement

Types of Rigid Pavement l Reinforced & Un-reinforced Concrete Pavement

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The pavement having high flexural strength is called rigid pavement. It is simply a concrete road that may be either RCC or PCC.

Rigid Pavement is divided into different slabs during construction and a small gap is provided between slabs so that concrete doesn’t crack during expansion in summer days (Not in continuous reinforced concrete pavement). They are more environment-friendly than the flexible one. There are 2 types of Rigid Pavement.

 

Types of Rigid Pavement

 

1. Un-Reinforced Concrete Pavement (URCP)

The rigid pavement in which reinforcement is not provided is called unreinforced concrete pavement. Simply, it is a Plain Concrete Pavement. There are two types of URCP pavement. They are:

 

a.Jointed Dowelled Concrete Pavements(JDCP):

They are also called jointed plain concrete pavement(JPCP). In this type of pavement, the load transfer mechanism is implemented using aggregate interlocks or dowel bars provided in transverse joints. They have a joint spacing of 5 m -10 m.

 

b.Jointed Un-Dowelled Concrete Pavements(JUDCP):

This type of pavement is constructed when the traffic is very low. Dowel bars are not provided in JUDCP.

 

2. Reinforced Concrete Pavement(RCP)

The rigid pavement in which reinforcements are provided is called reinforced concrete pavement. They are used when traffic is high. There are two types of RCP. They are:

 

a.Jointed Reinforced Concrete Pavements(JRCP):

JRCP steel mesh or mat is provided at the centre of the slab.

The main use of reinforcement is to control cracking rather than a structural purpose. It can be used for low or medium traffic roads.

 

b.Continuous Reinforced Concrete Pavements(CRCP):

Continuous reinforcements are provided in this pavement. They are mainly used for constructing high traffic roads. The gap between the slab is also eliminated. They are mainly used where the strength of sub-grade soil is very less. This pavement can resist different types of load and adverse weathering effects easily.

 

Read More: Flexible Pavement

Read More: Difference between rigid and flexible pavement

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