MASS STABILISATION MANUAL

ALLU STABILISATION SYSTEM
3.4 Principles of ALLU mass stabilisation
There are three different working principles for the ALLU Stabilisation Systems.
Stabilisation in different layers
The method is used when material is solid enough. The binder material is either spread on the
surface or fed directly to the mixing drum while the drum is rotating. While mixing the binder and
soil the PM is also moving the stabilised material towards the excavator. The depth of stabilisation
is not limited by the length of the PM.
Figure: Stabilisation in layers
Stabilisation in blocks
The method is used when the material is very wet (peat, mud or soft clay). The binder is always
fed into the middle of the mixing drums while the drums are rotating and simultaneously moved
vertically.
The depth of the stabilisation is limited
by the length of the PM (2,0 ; 3,0 or 5,0
meters). The total area is usually divided
into 10 to 25 meters square areas
which are marked on the ground with
the sticks and the stabilisation is done
in one sequence. The driver moves the
PM up and down to the required depth
in every area so that the whole volume
is homogenised. The amount of the
binder is also controlled, adjusted and
reported by using the DAC system.
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Picture: Stabilisation in blocks
Mass stabilisation 2005
Blocks