Cationic emulsions
Positively charged bitumen particles, with good adhesion to the acidic mineral aggregates common in road construction.
Bitumen
emulsions
Binding agents
Low-temperature application
and reliable adhesion
Bitumen emulsions are mixtures of fine bitumen droplets dispersed in water, obtained using special additives - emulsifiers. They are used as binding agents in various road construction, reconstruction and maintenance technologies, as they allow bitumen to be applied at significantly lower temperatures than conventional hot-mix asphalt installation methods.
They are produced by controlled dispersion of bitumen in water, most commonly using a colloid mill, with the addition of emulsifiers and other components that regulate stability, breaking speed and the emulsion's functional properties. Depending on the type of emulsifier and the electrical charge of the bitumen particles, they are classified as cationic or anionic. Their characteristics are adapted to the intended use and application conditions.
Bitumen emulsion grades are based on the type and content of binder, particle polarity, breaking speed and other functional properties defined by the relevant standards.
Key quality parameters
Division by charge
Cationic
and anionic emulsions
Anionic emulsions
Negatively charged bitumen particles, suited to basic aggregates and specific application technologies.
Application
Where emulsions
are used
Surface treatments
Protective and wearing layers applied by spraying the emulsion and spreading aggregate.
Tack and prime coats
Bonding asphalt layers and preparing the base before installation.
Cold mixtures and micro-surfacing
Installation without heating the mixture, with a fast return to traffic.
Rehabilitation and stabilisation
Repairing pavement damage and stabilising unbound materials.