Rammers

No

B

No

B

NO

B

C

C

Walk-Behind Rollers

B

C

Multiquip's
Soil Compaction Handbook

Is an essential tool for anyone wanting to learn about soil compaction or needing to review compaction basics. Soil density and methods to achieve proper compaction are discussed. Soil types are defined (starting on page 4).

Vibaratory Plate Compactors

also known as Forward Plate Compactors

Forward - Vibratory plates are low amplitude and high frequency, designed to compact granular soils and asphalt. Gasoline or diesel engines drive one or two eccentric weights at a high speed to develop compaction force. The resulting vibrations cause forward motion. The engine and handle are vibration-isolated from the vibrating plate. The heavier the plate, the more compaction force it generates. Frequency range is usually 2500 vpm to 6000 vpm. Plates used for asphalt have a water tank and sprinkler system to prevent asphalt from sticking to the bottom of the baseplate. Vibration is the one principal compaction effect.

Reversible Plate Compactors

In addition to some of the standard vibratory plate features, reversible plates have two eccentric weights that allow smooth transition for forward or reverse travel, plus increased compaction force as the result of dual weights. Due to their weight and force, reversible plates are ideal for semi-cohesive soils.

A reversible is possibly the best compaction buy dollar for dollar. Unlike standard plates, the reversible’s forward travel may be stopped and the machine will maintain its force for “spot” compaction.