Granular soils, gravels, and hot asphalt mixes are loosely packed and hence it requires compaction. Compaction can be done in 4 methods

1. Impact
2. Vibration
3. Pressure
4. Kneading

This compaction by vibration is provided by tandem vibratory roller if it is a larger area, for small areas vibratory plates are used. By this vibratory action, the voids gets filled and hence high density is achieved.

Leading manufacturers

• Ammann
• Chicago Pneumatic
• Fast Verdini Srl
• MBW Incorporated
• NTC
• Safari Construction Equipments Private Limited
• SAKAI HEAVY INDUSTRIES
• SIRL SA
• Wacker Neuson SE
• WEBER MASCHINENTECHNIK
• Zipper Maschinen

Types

• Forward travel
• Reversible
• For Excavators
• For skid steer loaders

Few of the commercially available vibratory plates are