Stabilised materials guidance updated
26 March 2019
Austroads has published an updated edition of
the Guide to Pavement
Technology Part 4D: Stabilised Materials.
Stabilisation may be defined as a process by which the intrinsic
properties of a
pavement material or earthworks materials are altered by
the addition of a stabilisation binder or granular material to meet
performance expectations in its operating, geological and climatic
environment.
The use of stabilisation technology for stabilising and
recycling
materials for pavement construction and maintenance is widely accepted
as a cost-effective method of improving long-term performance and
reducing whole-of-life costs of modern, heavily-trafficked pavements.
Guide to Pavement Technology Part 4D: Stabilised Materials describes in
detail the:
-
types of stabilisation undertaken to improve pavement materials and earthworks materials
-
types of binders used in stabilisation
-
types of binders suitable for particular materials
-
laboratory determination of the type and quantity of binder required to achieve a particular type of stabilised material (mix design).
This Guide is a complete revision
of edition 1.0 originally published in 2006 and includes restructuring
the Guide based on stabilisation materials; editorial changes and minor
technical changes throughout; and major technical changes to the
guidance relating to cementitiously stabilised materials and foamed
bitumen stabilised materials.
Stabilisation of unsealed roads is described in Guide to
Pavement Technology Part 6: Unsealed Roads,
https://austroads.com.au/publications/pavement/agpt06.
The Guide was authored by Geoff Jameson from ARRB and the project
manager to update the Guide was managed by Graham Hennessy.
PDF version of the Guide is available to download for free.
The online version of the Guide is being developed and will be available
in April 2019.
Guide link: Guide to Pavement Technology Part 4D: Stabilised
Materials,
https://austroads.com.au/publications/pavement/agpt04d
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