Rigid and Flexible Pavement
Following are some examples of how rigid and flexible pavement differ:
Flexible pavement | Rigid pavement |
Grain-to-grain contact moves the burden from the top to the bottom. | Slab action is used to transmit the weight. |
minimal or insignificant flexural strength | strong flexural capacity. |
There are no joints. | There are contraction and expansion joints available. |
Low upfront costs, but substantial ongoing expenses. | Low maintenance costs yet a high initial cost. |
It consists of layers for the base, surface, sub-base, and subgrade. | Base course, Concrete slab, and subgrade layers are all part of it. |
Underlying layers receive the effects of deformation in the top layers. | Only the top layer of the concrete slab has been deformed. |
more appropriate for building stages | Less suited for stage building. |
Extremely minimal impact of temperature stress | affected by frictional forces and temperature |
Summary:
Consider the following statements regarding pavements
The assertions Temperature changes have a greater impact on rigid pavements than on flexible pavements, and Any deformation in the top layers of a flexible pavement is communicated to the layers underneath it, whereas with rigid pavements, any deformation only affects the top layer of the concrete slab because of slab or beam action.
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