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ASPHALT MIXING PLANT (QUALITY MANAGEMENT (TRIAL PAVING (Establish…

- - - - Grading, BC, VTM, VMA, VFB, Flow & Stability
  - - - Bitumen Content, VTM, VMA, VFB, Flow & Stability
  - - - Grading, BC, VTM, Density, Layer of thickness & level.
- - - - Water permeability of met.
      - Ageing of binder.
      - Difficulty in achieving density.
  - - - Finer fraction, higher binder content.
      - Variation density & void.
      - Variability in mix composition.
      - Getting worse with large aggregate mixes.
  - - - Rolling pattern & speed.
      - Correct roller option.
      - Sequence of compaction.
      - Aiming from batching to paving.
      - Equipment selection.
      - Avoid over compaction.
  - - - Riding quality.
      - Appearance.
      - Noise generation.
      - Surface texture.