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Component of Road Construction.
Component of Road Construction.
- Survey Works1a. Right of way or Boundary Survey
1b. Road centreline (CL) Survey.
1c. Road levelling survey ( Subgrade Level, Subbase Level, Roadbase Level,Finishing road level survey.
1d. As built Survey.
1e. Invert level for drain, Culvert
1f. Slope formation survey. - Site clearing.
- Stripping of top soil.
- Cutting and filling to form the subgrade level.
- Cutting to form the slope formation level.
- Laying of the Subbase with the approved material.
- Laying of the roadbase with approved aggregate.
- Spreading filler to top of roadbase.
- Sparying the prime coat on top of the roadbase.
- Laying of the Asphaltic Binder course.
- Laying of the Asphaltic Wearing Coarse.
- Construction of the drainage system, (Bench or berm drain,Toe Drain, Roadside drain)
- Piling works to drain, Culvert or bridge.
- Selection of material
- Compaction test.
- CBR test
- Makintosh probe testing
- Marshall test
- Cube test for concrete.
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