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Asphal Mixing Plant (Types of Plants (Continuous Plant (Similar process,…

- - - - Optimum laboratory is manufactured in asphal plant (min. 20 tonnes)
      - Mix Paremeters verification
        
        Bitumen Content
        
        Void in Total Mix (VTM)
        
        Grading
        
        Void in Mineral & Aggregate (VMA)
        
        Flow & Stability
        
        Void Fill with Bitumen (VFB)
    - - Establish required compaction effort
      - Establish production mix parameters
      - Test properties of field samples
      - Set tolerances for acceptance control
      - Assess of constructibility of mix
    - - Selection & Proportion of binder, aggregate and filler
      - Determination of Mix Design Procedure
      - Final Optimum Mix
        
        Bitument Content
        
        Void in Total Mix (VTM)
        
        Void in Mineral & Aggregate (VMA)
        
        Void Fill with Bitumen (VFB)
        
        Flow & Stability
    - - Undertaken after successful evaluation of trial plant mix & trial paving
      - Parameters monitored
        
        Grading
        
        Bitumen Content
        
        Void in Total Mix (VTM)
        
        Density
        
        Layer thickness & levels
  - - - Material Properties
      - Site Conditions
      - Environmental Variables
      - Type of Compaction Equipment
    - - To avoid
        
        Difficulty in achieving density
        
        Water permeability of mat
        
        Ageing of binder
    - - Avoid segregation of Mix
        
        Finer fraction higher binder content
        
        Variation in density & voids
        
        Variability of mix compostion
        
        Worse with larger aggregate mixes
    - - Surface texture
      - Riding Quality
      - Appearance
      - Noise Generation