Describe the techniques used to repair flexible and rigid pavements and their effectiveness for the following treatment types: (a)patching, (b) crack maintenance, and (C) overlays.
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used to repair flexible and rigid pavements and their effectiveness for the following treatment types: (a)patching, (b) crack maintenance, and (C) overlays.
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a) Patching
Patching the techniques used to repair flexible and rigid pavements and their effectiveness for the following treatment.
- The most often employed methods for rehabilitation or restoration of rigid road pavements are crack filling, crack sealing, diamond grinding, dowel bar retrofitting, joint repair, partial depth repair, full depth repair, hard concrete surface texturing, etc.
- This covers remedies like patching and filling potholes as well as joint or slab replacement for stiff pavements. Routine maintenance may include smaller tasks like crack filling and roadside ditch cleaning. This kind of job is typically done under contract using minimal tools.
- It includes tasks like patching potholes, repairing edges, filling in cracks, repairing holes and ruts, repairing depressions locally, maintaining drains, repairing roadside furniture, etc.
- In order to allow for this "flexing," flexible pavement structures often consist of numerous layers of materials. On the other hand, a PCC surface course makes up stiff pavements. Due to the high elastic modulus of the PCC material, these pavements are much "stiffer" than flexible pavements.
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