GlboeCore produces high quality systems for production of EBC-1 and EBC-2 cationic bitumen emulsion.
Preparation of bitumen emulsion is essentially the grinding of bitumen in water with a surfactant emulsifier. By chemical nature, surfactants are divided into several types, depending on the charge of its particles
Therefore, the emulsifier is one of the most important components of bitumen emulsions, which directly influences quality and parameters of the product.
Depending on the emulsifier used, emulsions may be anionic (EBA) and cationic (EBC). Due to versatility and good adhesion, the used of EBC cationic water bitumen emulsions is preferred to in construction and repairs of modern roads.
Based on the amount of emulsifier used, cationic water bitumen emulsions may be divided into three types: EBC-1, EBC-2 and EBC-3. The amount of the surfactant influences the emulsion breakdown time in contact with the filler, that is, the time when bitumen precipitating from the emulsion reaches its initial state. Water bitumen emulsions can also be modified with polymers. Such emulsions are also divided into three groups: EBPC-1, EBPC-2 and EBPC-3.
EBC emulsion breakdown rate:
EBC-1, EBPC-1 — fast breakdown emulsions;
EBC-2, EBPC-2 — mid breakdown emulsions;
EBC-3, EBPC-3 — slow breakdown emulsions.
The emulsion breaks down in contact with the mineral material due to water evaporation, as well as absorption of water and emulsifier by the filler. However, the rate of breakdown of a cationic water-bitumen emulsion depends not only on the amount of the surfactant emulsifier, but also on bitumen specifications, emulsification method, weather conditions and the properties of the filler. It is possible to adjust the rate of breakdown by using various additives. E.g. magnesium and calcium salts accelerate breakdown of bitumen droplets.
Depending on the task, a certain type of EBC is suggested. It should be noted that using a different type may lead to damage or poor quality of work.