Home | ENGINEERING | Rigid Pavements And its Types

Civil - Highway Planning and Alignment - Design Of Flexible And Rigid Pavements

Rigid Pavements And its Types

   Posted On :  25.07.2016 08:31 am

Rigid pavements have sufficient flexural strength to transmit the wheel load stresses to a wider area below.

Rigid pavements

 

Rigid pavements have sufficient flexural strength to transmit the wheel load stresses to a wider area below. A typical cross section of the rigid pavement is shown in Figure. Compared to flexible pavement, rigid pavements are placed either directly on the prepared sub-grade or on a single layer of granular or stabilized material. Since there is only one layer of material between the concrete and the sub-grade, this layer can be called as base or sub-base course.

 

In rigid pavement, load is distributed by the slab action, and the pavement behaves like an elastic plate resting on a viscous medium .Rigid pavements are constructed by Portland cement concrete (PCC) and should be analyzed by plate theory instead of layer theory, assuming an elastic plate resting on viscous foundation. Plate theory is a simplified version of layer theory that assumes the concrete slab as a medium thick plate which is plane before loading and to remain plane after loading. Bending of the slab due to wheel load and temperature variation and the resulting tensile and flexural stress.

 

Types  of  Rigid Pavements

 

Rigid  pavements  can  be  classified  into  four types:

 

Jointed  plain  concrete  pavement  (JPCP),

 

Jointed  reinforced  concrete  pavement  (JRCP),

 

Continuous reinforced concrete pavement (CRCP), and

 

Pre-stressed concrete pavement (PCP).

Jointed Plain Concrete Pavement: are plain cement concrete pavements constructed with closely spaced contraction joints. Dowel bars or aggregate interlocks are normally used for load transfer across joints. They normally has a joint spacing of 5 to 10m.

 

Jointed Reinforced Concrete Pavement: Although reinforcements do not improve the structural capacity significantly, they can drastically increase the joint spacing to 10 to 30m. Dowel bars are required for load transfer. Reinforcements help to keep the slab together even after cracks.

 

Continuous Reinforced Concrete Pavement: Complete elimination of joints are achieved by reinforce-ment.

 

Tags : Civil - Highway Planning and Alignment - Design Of Flexible And Rigid Pavements
Last 30 days 61 views
Related words :

What is Rigid Pavements And its Types Define Rigid Pavements And its Types Definition of Rigid Pavements And its Types where how meaning of Rigid Pavements And its Types lecturing notes for Rigid Pavements And its Types lecture notes question and answer for Rigid Pavements And its Types answer Rigid Pavements And its Types study material Rigid Pavements And its Types assignment Rigid Pavements And its Types reference description of Rigid Pavements And its Types explanation of Rigid Pavements And its Types brief detail of Rigid Pavements And its Types easy explanation solution Rigid Pavements And its Types wiki Rigid Pavements And its Types wikipedia how why is who were when is when did where did Rigid Pavements And its Types list of Rigid Pavements And its Types school assignment college assignment Rigid Pavements And its Types college notes school notes kids with diagram or figure or image difference between Rigid Pavements And its Types www.readorrefer.in - Read Or Refer

​TOP MENU

OTHER SUGEST TOPIC

Recent New Topics :