Product Information
Polyroad Stabilising Process
| How Polyroad Works |
What Happens When Gravel Gets
Wet |
| Structural Failure of Roads
| Design
Considerations |
|
Recommended Testing & Assessment |
Selecting the
Right Binder Type |
Most road gravels have sufficient strength to resist
typical traffic stresses when dry however, they dramatically lose strength
when wetted up. When wet clay and silt fines within gravels become
'greasy', they lubricate the larger particles resulting in pavement
failure (permanent plastic deformation).
Polyroad stabilisation preserves the dry strength of
water-susceptible gravels by a process of 'internal' waterproofing of fine
grained particles. This involves creating a hydrophobic soil matrix
between the particles which reduces permeability and limits water ingress.
The typical softening and lubricating effect of any moisture that enters a
granular pavement is also significantly reduced.
A Polyroad stabilised pavement provides consistency in
moisture equilibrium avoiding severe change in material condition and
behaviour.
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Gravel pavement fatigue
Subgrade fatigue
| How Polyroad Works
| What Happens When Gravel
Gets Wet |
| Structural Failure of Roads
| Design
Considerations |
|
Recommended Testing & Assessment |
Selecting the
Right Binder Type |
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