10 Use and operation
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100_0101_op_0008.fm
Compacting fresh concrete
1. Quickly immerse the vibrator head in the fresh concrete, hold it for several se-
conds and slowly pull it out again.
2. Immerse the vibrator head in all areas of the formwork and compact the fresh
concrete.
Note:
Compact especially intensively in the area of formwork corners. In these ar-
eas, the reinforcement rate is the highest.
Avoid contact of the vibrator head with the concrete reinforcement. The fol-
lowing damages are possible if the vibrator head comes into contact with the
concrete reinforcement:
The connection of the concrete to the reinforcement can be lost.
The machine can be damaged.
The result of the compacting depends on the following points:
Holding time of the vibrator head in the concrete.
Diameter of the vibrator head.
Consistency of the concrete.
Reinforcement rate.
If you use a vibrator head with a smaller diameter, the compacting time to
achieve the same results as with a vibrator head with a larger diameter will
increase.
Indications that the concrete is sufficiently compacted:
The concrete no longer sets.
Air bubbles no longer or rarely rise.
The sound of the vibrator head is not changing anymore.
