Chemical Stabilisation

Chemical stabilisation is the mixing of various chemicals into the pavement and not just the mere spraying of chemicals to the surface of the road.

The action of chemical binders in the pavement and subgrade materials are  

Action

Description

Adhesion:

Act as a glue in bonding particles

Adsorption:

To attract atmospheric moisture to reduce dust emission

Dilatant

To dispel water when compacted under vibration

Dispersant

Separates fine particles from each other

Ionic

Bonding from a reversing of the electrostatic charge on some soil platelets

Surfactant

To reduce surface tension.


Publication list

Stabilisation using dry powdered polymers
Insitu Stabilisation of Local Government Roads using Insoluble Dry Powdered Polymers
Design and performance of dry powdered polymers 2006
Chemicals used in Australia 2004
Do Dry Powdered Polymers Work? 2004
The development of a research protocol and fit-for-purpose certification for road additives 2003
Opportunities for improved unsealed road asset management with chemical stabilisation 2001
Polymer stabilisation of clayey gravels 2001
A reassessment of the use of ligno sulphonate as an additive for unsealed roads 2001
The incorporation of dust palliatives as a maintenance option in unsealed road management systems 2001
Stabilisation using dry powdered polymers, No. 3, Dec 2003