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Rapid Setting

When the bitumen emulsion is applied on the aggregate for the road works the water evaporates leaving behind the bitumen droplets. These droplets spread on the aggregate and bind with each other and gains  strength eventually. Based upon the time taken by the emulsion to evaporate the water, bitumen emulsion is classified into 3 types based on setting time. 

Rapid setting emulsion breaks down rapidly as it comes with contact with aggregate helping in fast setting and rapid curing.