Protec Boxer 107 Bedienungsanleitung Seite 109

Boxer 107 / Boxer 109
meter other than that the material in question cannot be
effectively compacted with a vibrating roller.
n
Low lying soft layers:
When compacting with heavy rollers and at a high
vibration amplitude the roller's depth effect penetrates
through the layer.
If there is a section or layer with a low bearing
capacity beneath the layer being compacted, the
PCM-values will be affected by with weak low
lying layer.
The registered Values will be lower than they
should really be, i.e. do not correspond to the results
from the spot methods with a narrower depth
effect.
n
Normal PCM-value (>20)
Depending on the roller's parameters and the general
condition of the ground, the PCM-value increase with
increasing number of passes.
The rate at which the PCM rises will depend on the
nature of the material.
n
High PCM-value (>50-100)
In general high PCM-values mean that the ground
has a high rigidity (bearing capacity).
Isolated high PCM valuees can mean the presence
of isolated blocks near the surface.
In such cases , the compaction meter can with high
precision be used to localise such blocks.
Some blocks under the pavement surface are often
not revealed and they can later cause damage to
the compacted surface.
Boxer 107 / Boxer 109
102
Seite
ProTec Baumaschinen GmbH , 31789 Hameln
Option
Option
10/98