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Differences between Flexible and Rigid Pavements

Differences between Flexible & Rigid Pavements

Differences between Flexible & Rigid Pavements

Flexible Pavement VS Rigid Pavement 

( Composition )

Flexible Pavement 

Flexible pavements are composed of properly graded aggregates with bitumen/tar as binder

VS

Rigid Pavement

Rigid Pavements are constructed by using PCC —Cement, Aggregates, Water and Dowel Bars (for joints)

( Stability )

Flexible Pavement
Strength depends upon interlocking of aggregates, friction & cohesion

VS

Rigid Pavement
Strength depends upon the flexural strength of placed concrete

( Design )

Flexible Pavement
Flexible materials are constructed in number of layers.

VS

Rigid Pavement
Rigid Pavements are casted as a single concrete slab with reinforcements

Lean More

Find The Volume Of Concrete For The Trapezoidal Footing

( Joints )

Flexible Pavement
Flexible Pavements are laid continuously, hence there are no joints

VS

Rigid Pavement

Rigid Pavements are constructed in bays, hence joints are present

( Cost )

Flexible Pavement
Initial Cost is less and maintenance cost is more

VS

Rigid Pavement
Initial costs are high and low maintenance costs

( Load Distribution )

Flexible Pavement

Loads are distributed to underlying layers by grain to grain action

VS

Rigid Pavement
Load is distributed over a wider area of subgrade due to its rigidity and high elastic modulus

( Thermal Stresses )

Flexible Pavement
No thermal stresses developed due to temperature variation

VS

Rigid Pavement
Thermal stresses develops leading to warping

( Traffic )

Flexible Pavement
Can be open to traffic after 24 hours

VS

Rigid Pavement
Can be open to traffic after minimum of 14 days

Learn more 

 

  1. What Is The Working Principle Of Base Insulation System

  2. Introduction And What Are Causes Of Building Cracks

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