Compaction Equipment

Compaction equipment and their application:-

1.  Sheep foot roller

·        suitable for fine-grain soils

·        Not suitable for use on cohesionless granular materials

2.  Tamping rollers

·       Also knowns as high speed non-vibratory rollers

·       Suitable for all soils expect sand and soft clays

3.  Vibrating rollers

·       These are used to control the effective depth by transmitting vibration.

4.  Smooth drum vibratory compactor

·       They are used on granular materials of size vary from large rocks to fine sand

·       By applying them 3 compaction force will create

a.   Pressure

b.   impact

c.    vibrations

5.  Pneumatic tyred rollers

·        suitable for coarse and fine soils

·        not suitable for very soft clay

·        They applying kneading effect  (applying deep pressure to change in different shape) to compact the soil

·        used to proof roll roadways subgrade, field bases and on earth-fill dams

6.  Manually operating compactors

I.       Vibrating compactors

·        Suitable for coarse soil

·        Used where large compactors not possible

II.  Rammer compactors

·        There are self-propelled rammers

·        used where lift thickness is small (3-4 inch)

7.  Tampers and Rammers

·        Suitable for all type soils

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