Rollers -
Compaction
of the materials used in
embankment
dams and
RCC dams can
be achieved by using rollers. They are heavy pieces of equipment,
either included as part of a vehicle, or towed behind one. The
roller is driven backwards and forwards over a thin layer of
the material, and its weight gradually compacts the material
down.

A sheep's foot roller compacting rockfill
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