Bitumen Emulsion CSS-1h
It is a Bitumen emulsion CSS-1h. The patented SMEP process produce cationic slow setting asphalt emulsion. also bitumen emulsion is sutaible for road. However producer make The base asphalt for emulsification from specially crude oils via carefully refining processes. By the way Bitumen Emulsion CSS-1 components we carefully select and balance, according to formulations.
What is Bitumen Emulsion?
Emulsified Bitumen usually consists of bitumen droplets suspended in water. Moreover this dispersion under normal circumstances would not take place. Also everyone knows, oil and water don’t mix. But if an emulsifying agent added to water asphalt will remain dispersed. Most emulsions used for surface treatments. That`s enable using lower temperatures (45°C-70°C). This is much lower than 150-190°C used for hot mix asphalt cements. The lower application temperatures will not damage asphalt and are much safer for field personnel. In bitumen emulsion production, water treated with emulsifying agent and other chemicals. It pumped to colloid mill along with bitumen. The colloid mill breaks bitumen up to tiny droplets. Emulsifying agent migrates to asphalt-water interface and keeps droplets from coalescing. As a result Emulsion then pumped to storage tank.
Cationic Bitumen emulsion CSS-1h have a positive charge and hence a direct and very rapid reaction between the emulsion and an aggregate or pavement is possible. The size of the charge or the Zeta potential affects stability, the larger the charge the greater the repulsion, but as the aggregate is negatively charged the higher the zeta potential the more rapid the reaction.
So it is possible to stabilize a cationic emulsion in the same way that makes it a more rapid break. The other mechanism of evaporation is available too but as the emulsion is stabilized this form of break becomes slower. Thus a balance must be struck.After the electrostatic part of the reaction is complete the emulsion will rely on flocculation and coalescence to complete break.
After the break is completed the water must still be completely evaporated for the residual Asphalt to achieve full strength.
Application of Bitumen Emulsion CSS-1h
We can use Cationic emulsions at ambient temperatures with aggregates, which must completely dry that. Emulsions are less hazardous to use in comparing with cutback, and we apply in a wider range of conditions. Most CSS-1h applications we list as below:
- Biturubber (Rubber)
- Bitumalch (Malching)
- Prepared cold Mixed Asphalt
- Bituprime (Prime Coat)
- Bitucoat (Fog Seal – Seal Coat)