Stabilisation
of soil improves the quality of sub-grade materials for recycling
and re-use, thereby reducing the need for imported materials.
Stabilised
site won material may be used to replace an equivalent imported
crush rock layer.
The
high production rates of stabilisation improves construction
expediency.
Lime
stabilisation reduces the shrinkage rate of a high plastic
clay to less than 10% and raises the bearing capacity, for
example: using 3% quicklime, a CBR 5% can be raised to 25%.
Mechanical
mixing and compaction of extremely weathered rock improves
permeability by reducing the scope for seepage through lenses,
fissures and other faults.
Quicklime
is the industry standard for field application of lime stabilisation.
Hydrated Lime and other forms of lime exist but are less effective
in the field.
Environmental
benefits include reduced quantities of quarry products, export
to tip sites and less traffic loading on the surrounding road
network.
Quicklime
Stabilisation permeability improves the physical and chemical
properties of clay resulting in strength gains and reduced
expansion. Treatment of the non expansive material with cementitious
binders will further increase strength.
