Anionic Bitumen Emulsion RS-2 is a rapid setting, anionic bitumen emulsion used for surface dressing and mixtures. Its breaking properties are susceptible to temperature and humidity, and its negative charge makes it ideal for industrial coatings. The product is exported to various East Asian regions, including China, Malaysia, Thailand, Taiwan, Vietnam, Philippines, Indonesia, Cambodia, and certain African countries like Congo, Djibouti, and Rwanda.

Description of Bitumen Emulsion RS-2

Anionic Bitumen Emulsion RS-2 is a rapid setting, anionic, bitumen emulsion.
For anionic and emulsions, there are several grades of different breaking characteristics. Rapid-setting emulsions are used for surface dressing, while medium or slow-setting emulsions are used for ‘mixtures’, that is mixed with aggregate either in concrete-type mixers or in situ.

Rapid-setting emulsions are not used for mixtures because they would tend to set during the mixing process and clog the mixer. Generally, in making mixtures, the finer the aggregate used, the slower setting the emulsion that has to be used. Therefore, stone mixtures require medium-setting emulsions and sand mixtures require a slow-breaking emulsion. With anionic emulsions, the breaking process is predominantly by evaporation of the water in the emulsion continuous phase. Because of this, anionic emulsions are susceptible to temperature and humidity in terms of their breaking properties.

An Anionic emulsion has a negative charge, most of the things in the world are Anionic and that is why the majority of Research and Development, formulating, and lab testing has been done in the Industrial Coatings Industry to make coatings from Anionic systems. When an Anionic emulsion is mixed with a Cationic emulsion a strong bond develops and the result is the changing of the substance to a solid. This result is not ideal to be used as a coating because it cannot be applied to substrates.

Application of Bitumen Emulsion RS-2

Anionic Bitumen Emulsion RS-2 is primarily used for applications that require a quick-setting, water-resistant, and protective coating. Here are some of its common applications:

Waterproofing

• Roofing: As a waterproofing layer for various roof types.
• Basements: To protect against moisture penetration.
• Tunnels: For waterproofing and protection against water ingress.

Building Applications

• Primer: As a base coat for various surfaces before applying paints or other coatings.
• Protective Coatings: To protect surfaces from water, weathering, and corrosion.
• Joint Sealing: For sealing cracks and joints in concrete and masonry.

Concrete and Metal Protection

• Corrosion Prevention: As a protective coating for metal structures.
• Concrete Repair: For sealing cracks and repairing damaged concrete surfaces.
• Waterproofing: To protect concrete structures from water penetration.

Other Applications

• Tack Coat: In some cases, it can be used as a tack coat for asphalt pavements, but its primary use is in other areas.
• Industrial Applications: For various industrial applications requiring a waterproof or protective coating.

Advantages of Bitumen Emulsion RS-2

Asphalt emulsion RS-2 offers several advantages in road construction and maintenance:

• Enhanced Durability: Bitumen Emulsion RS-2 emulsion provides a thicker coating compared to RS-1, resulting in improved durability and resistance to wear and weathering. This makes it suitable for applications where greater longevity is required, such as chip sealing and slurry sealing.
• Improved Waterproofing: The thicker application of RS-2 emulsion helps enhance waterproofing properties, reducing the ingress of moisture into the pavement structure and minimizing damage caused by water-related deterioration, such as cracking and rutting.
• Greater Stability: Bitumen Emulsion RS-2 emulsion forms a stable bond between asphalt layers, resulting in enhanced pavement stability and resistance to rutting, stripping, and other forms of distress. This makes it ideal for use in high-traffic areas and roads subjected to heavy loads.
• Versatility: While Bitumen Emulsion RS-2emulsion is commonly used for chip sealing and slurry sealing, it can also be applied for prime coating and tack coating, offering versatility in various stages of road construction and maintenance projects.
• Cost-Effectiveness: Despite its thicker application, RS-2 emulsion remains a cost-effective solution for pavement preservation and rehabilitation projects. Its ability to extend the service life of existing pavements and reduce the need for more extensive repairs or reconstruction can result in long-term cost savings.
• Environmental Benefits: Bitumen Emulsion RS-2emulsion typically contains fewer volatile organic compounds (VOCs) compared to hot-mix asphalt, reducing environmental impact and improving air quality during application.

Storage and Handling

Proper storage and handling of Anionic Bitumen Emulsion RS-2 are crucial to maintain its quality and ensure safe operation.

Storage

• Temperature: Store the emulsion within recommended temperature ranges, typically between 50°F and 180°F (10°C and 82°C). Avoid freezing or excessive heating.
• Container: Use sealed containers to prevent contamination and evaporation.
• Ventilation: Ensure adequate ventilation in the storage area.
• Mixing: Agitate the emulsion regularly to prevent settling.

Handling

• Protective Gear: Wear appropriate protective clothing, gloves, and eye protection.
• Ventilation: Provide adequate ventilation during handling and application.
• Spills: Clean up spills immediately to prevent accidents.
• Mixing: Avoid mixing with other chemicals or emulsions.
• Application Equipment: Clean application equipment thoroughly after use.

Specification