Which is better flexible pavement or rigid pavement?
The road pavement is the layered structure located directly above the subgrade, and beneath the wearing surface which transmits the applied vehicle loads to the sub-grade and underlying soil….Difference Between Flexible Pavement And Rigid Pavement.
| Flexible Pavement | Rigid Pavement |
|---|---|
| Have low flexural strength. | Have sufficient flexural Strength. |
| Less durable. | More durable. |
What is maintenance cost of rigid pavement as compared to flexible pavement?
Based on the results of the research project, it revealed that the initial cost of rigid pavement was almost twice of the flexible pavement, but in the long run, the cost of flexible pavement per kilometer was found out to have 7.9 Million ETB more than the rigid pavement because of the incurring costs of maintenance …
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. …
Which pavement is best?
Concrete roads are highly durable and more environmentally friendly as compared to asphalt roads. However, asphalt paving costs far less than concrete paving. Also, asphalt road provides a little better safety of the vehicle against snow and skidding.
Why flexible pavement is preferred?
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 are 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.
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…
What do you understand by flexible and rigid pavement?
Flexible pavements are those which are surfaced with bituminous (or asphalt) materials. On the other hand, rigid pavements are composed of a PCC surface course. Such pavements are substantially “stiffer” than flexible pavements due to the high modulus of elasticity of the PCC material.
Why rigid pavement is provided?
There are two main reasons to use rigid pavement, both of which stem from its hardness. Since the surface is harder, it is also more durable over time. This keeps the road in good working order far longer than softer surfaces. The other advantage of concrete roads is in their shaping.
What are the advantages of rigid pavement?
The largest advantage of using rigid pavement is its durability and ability to hold a shape against traffic and difficult environmental conditions. Although concrete pavement is less expensive but has less maintenance and good design life.
What are the advantage and disadvantages of flexible and rigid pavement?
Advantages of Rigid Pavement ~ Low maintenance and operation cost. ~ Higher life span ( Life span may be up to 40 years whereas flexible pavement has a life span of only 10-20 years). ~ It has high flexural strength. ~ It has good resistance to petroleum products, oils, and chemicals.
What is the 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. The basic design of rigid pavement is very simple. A surface layer, made up of slabs of Portland cement concrete (PCC), sits on top of a handful of sub-layers.