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Soil
Stabilisation, as an engineered earthworks process, has been widely
used for many years overseas, without being used to anywhere near its
true potential in this country until recent times. Its principle
application has been to improve soil subgrades for use in road
pavement constructions, but further developments have led to the use
of soil modification and stabilisation techniques being incorporated
within a wide range of construction and remediation uses. The advent
of environmental taxation, including Landfill and Aggregate Taxes,
has led to increasingly more designers to seek ways of utilising
existing insitu materials within the construction requirements of
their particular sites.
Other
uses for the Powerbetter Stabilisation/Remediation processes
available included the following typical applications:
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In
the elimination of expensive offsite removal of unacceptable soils,
not merely due to tipping costs, but also in terms of program and
environmental considerations.
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In
offering choices in engineering greater soils strengths, and
improving workability and compaction requirements.
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In
treating, modifying or drying out unacceptably wet or plastic soils.
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In
the engineering of soils for use in temporary haul roads, and for
bulkfill, to avoid he need for costly importation of quarried/crushed
hardcore materials, which has a clear impact on the depletion of
natural mineral resources.
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In
sealing or encapsulating soils containing unacceptable levels of
contamination on brown field sites.
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In
permitting site works to be resumed at a far earlier stage after the
cessation of inclement weather.
The
process is now widely recognised as an effective and efficient means
of constructing pavements and foundations with significant savings in
construction costs. A method for stabilisation of subgrades is
included within the Specification for Highway Works, and
stabilisation techniques and processes have been widely used within
large civil engineering contracts on sites as varied as Housing
Developments, Airport Runway constructions, Aprons, Bulk Fill,
Industrial Areas, Motorways, Capping Layers for Carriageways,
Embankments and Contaminated Land
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