
Anionic Asphalt Emulsion RS-1 Definition
Anionic Bitumen Emulsion RS-1 is an anionic water-based emulsified asphalt containing minimum 57% bitumen designed for use as a bituminous binder for chip seals.
It’s characterized by its negatively charged particles, making it suitable for specific applications where this property is advantageous, such as improving adhesion and stability in asphalt mixes.
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 bitumen 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 Anionic Asphalt Emulsion RS-1
Anionic bitumen emulsion RS-1 is commonly used in road construction and maintenance for various applications:
- Prime coating: It can be applied as a prime coat to prepare the base surface before laying asphalt layers, enhancing bonding between the existing pavement and the new asphalt layer.
- Tack coat: RS-1 emulsion is often used as a tack coat to promote adhesion between asphalt layers, ensuring a strong bond between the pavement layers.
- Surface treatment: It can be applied as a surface treatment to rejuvenate aged pavements, improve surface texture, and extend the lifespan of the road.
- Patching and repair: RS-1 emulsion can be used for patching and repairing localized areas of distress on roads, such as potholes and cracks, providing a durable and cost-effective solution.
Advantage of Asphalt Emulsion RS-1
Anionic bitumen emulsion RS-1 offers several advantages in road construction and maintenance compared to other types of asphalt binders:
- Versatility: RS-1 emulsion can be used in a variety of applications, including prime coating, tack coating, surface treatments, and patching, making it versatile for different road maintenance needs.
- Improved adhesion: The anionic nature of RS-1 emulsion promotes strong adhesion between asphalt layers and pavement surfaces, enhancing the overall durability and longevity of the road.
- Ease of application: RS-1 emulsion can be easily applied using standard equipment such as spray trucks or hand sprayers, making it convenient for both large-scale construction projects and smaller maintenance tasks.
- Environmental benefits: Emulsions like RS-1 typically contain fewer volatile organic compounds (VOCs) compared to hot-mix asphalt, reducing environmental impact and improving air quality during application.
- Cost-effectiveness: RS-1 emulsion offers cost savings compared to traditional asphalt binders, as it requires less energy and resources for production and application. Additionally, its versatility and ease of use contribute to lower labor and equipment costs.
- Quick curing: RS-1 emulsion typically cures faster than other types of asphalt binders, allowing for quicker reopening of roads to traffic and minimizing disruptions to motorists and nearby residents.
Packing of Asphalt Emulsion RS-1
- Bulk as IBC Tank, FlexiTank
- Reconditioned steel drums 220 lit., Net Weight: 200 ± 3 Kg
- New steel drums 220 lit., Net Weight: 200 ± 3 Kg
- HDPE drums 220 lit., Net Weight: 200 ± 3 Kg
Packaging, Storage and Handling RS-1
Anionic bitumen emulsion RS-1 is typically packaged in drums or bulk containers. When storing and handling RS-1 emulsion, it’s essential to follow these guidelines:
- Storage: Store RS-1 emulsion in a covered area to protect it from exposure to sunlight and extreme temperatures. Ideally, the storage temperature should be between 10°C and 30°C (50°F to 86°F). Ensure proper ventilation to prevent the buildup of volatile gases.
- Handling: Handle RS-1 emulsion with care to prevent spills and splashes. Use appropriate personal protective equipment, such as gloves and goggles, when handling the product. Avoid contact with skin and eyes, and wash thoroughly with soap and water if contact occurs.
- Mixing: Before use, gently agitate or mix the emulsion to ensure uniform consistency. Avoid excessive agitation, as it can cause air entrapment and affect the performance of the emulsion.
- Transportation: During transportation, secure the containers properly to prevent shifting or tipping. Follow all regulations and guidelines for the transport of hazardous materials, as RS-1 emulsion may be classified as such due to its flammable properties.
- Storage duration: RS-1 emulsion should be used within a reasonable timeframe to prevent degradation. Check the manufacturer’s recommendations for the shelf life of the product, and avoid storing it for extended periods.
Specification of Anionic Bitumen Emulsion RS-1
PROPETRY | MIN | MAX | TEST METHOD |
Viscosity SSF , 25 °C (s) | 20 | 100 | ASTM D244 |
Viscosity SSF , 50 °C (s) | — | — | ASTM D244 |
Storage stability, 24h (%) | — | 1 | ASTM D6930 |
Demulcibility , 0.02 N CaCl2 (%) | — | — | |
Cement mixing (%) | — | 2 | |
Sieve (%) | — | 0.1 | ASTM D6933 |
Residue (%) | 57 | — | ASTM-D244 |
Solubility in trichloroethylene % | 97.5 | ASTM D2042 | |
Penetration 77°F (25°C) 100g,5s mm | 100 | 200 | ASTM D5 |
ductility, 77°F (25 °C), 5cm/min (cm) | 40 | ASTM D113 |