What is the difference of flexible and rigid?

The main difference between the flexible and rigid pavements is based on the manner in which the loads are distributed to the subgrade. The pavement design is also one major factor, with flexible pavements reliant on subgrade strength and rigid pavement dependent on the flexural strength of concrete.

What is pavement explain different types of rigid and flexible pavement in details?

A rigid pavement has several layers with the best quality material located nearest the surface. A flexible pavement offers an elastic surface and is made of a thin surface of hot-mix asphalt poured over a base.

What is advantage of flexible pavement over rigid pavement?

Flexible pavements are preferred over rigid concrete roads because of their certain advantages, such as they can be strengthened and improved in stages with the growth of traffic. Flexible pavements are less expensive in regards to their initial cost and maintenance.

What is a rigid pavement?

Rigid pavement is the technical term for any road surface made of concrete. Concrete roads are called rigid while asphalt-covered roads are flexible. A surface layer, made up of slabs of Portland cement concrete (PCC), sits on top of a handful of sub-layers.

What is the flexible pavement?

Flexible pavements are constructed of several thicknesses of asphalt or bituminous concrete layers overlying a base of granular material on a prepared subgrade. They spread the concentrated aircraft wheel loads throughout their depth until the load at the base of the pavement is less than…

Why rigid pavement is stronger and durable than flexible pavement?

Rigid pavements are substantially harder than flexible pavements due to the high modulus of elasticity of the PCC – Plain Cement Concrete material, resulting in very low deflections under loading. …

What are the types of flexible pavement?

Types of Flexible Pavements

• Conventional layered flexible pavement,
• Full – depth asphalt pavement, and.
• Contained rock asphalt mat (CRAM).

What are the purpose of flexible pavement?

Objective of Flexible Pavements To limit the recoverable or elastic deformation of the pavement within the permissible limits so that the pavement can sustain a large number of repeated load applications during the design life, without resulting in structural damages due to fatigue failure of the pavement layers.

What is the advantages of flexible pavement?

Advantages of Flexible Pavement ⦁ It provides the possibility of low-cost type construction. ⦁ The construction process consists of a series of simple steps and can be easily constructed. ⦁ It has a wider resistance to temperature fluctuations. ⦁ Repair works can be carried out easily in the case of flexible pavement.

Is rigid or flexible pavement better?

Rigid pavements have a great amount of flexural strength or flexural rigidity. In this pavement, the load is distributed by the slab action, and the pavement acts as an elastic plate….Difference Between Flexible Pavement And Rigid Pavement.

Flexible Pavement	Rigid Pavement
Have low flexural strength.	Have sufficient flexural Strength.
Less durable.	More durable.

What are the advantage and disadvantage of flexible pavement?

Advantages of Flexible Pavements The curing period for the bituminous surface course is less and hence the surface can be opened to the traffic within 24 hours. Flexible pavements are of low-cost maintenance as it can be restored at the point of distortion by filling it with appropriate material.

What are the advantage and disadvantages of flexible and rigid pavement?

Main advantage of it is that it is more durable and hence has longer life as compared to flexible pavements. One of the main disadvantages of it is the cost associated with the material and installation. The initial cost is very high as compared to that of flexible pavements.