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Fayat Group Dynapac CA30D - Page 66

Fayat Group Dynapac CA30D
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Operation - Vibration
01-06-2022 4812134740EN 66
Some reference CMV for some compacted materials:
Material
CMV
Rockfill
40 - 200
Rock fill
25 - 100
Sand
20 - 60
Silt
5 -30
Clay
0 - 80
The water content in the compacted soil, except for rockfill,
has a large influence on stiffness; wet soil will result in low
CMV and dry soil will result in higher CMV.
When bouncing occurs, CMV will be reduced and this
lower CMV should not be used for determine if compaction
is ready or not.
NOTE: The operator should always focus on the direction
of driving and not too much on the CMV display for safety
reasons.

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