RS-1 Rapid Setting Cationic Bitumen Emulsion is cold applied and is very effective for Cold Mix Asphalt (CMA) concrete. BNB RS-1 grade bitumen emulsion is designed to react quickly with aggregate and revert from the emulsion state to bitumen. They are used primarily for tack coat application and in spray applications, such as aggregate (chip) seals, surface treatments, asphalt penetration macadam and grouting.
Bitumen emulsion is a mixture of fine droplets of bitumen and water. But as the bitumen is a petroleum product it doesn’t mix with water and as it is sticky in nature, it doesn’t easily gets disintegrated into fine droplets. To overcome this problem an emulsifier is used.
Emulsifier can be defined as a surface-active agent. Emulsifier keeps the bitumen in its fine droplet state by disallowing it to mix with other droplets. As the droplets are very fine they suspend in water.