RS 2
Understanding RS 2
RS-2 is a rapid-setting, anionic water-based emulsified asphalt supplied in bulk.
Key Properties:
- Boiling Point: 212°F
- Specific Gravity: 1.01 (H₂O=1)
- Percent Volatile: 0%
- Solubility in Water: Soluble
- Appearance: Brown liquid with a faint petroleum odor
- Flammability: Non-flammable
Recommended Use:
RS-2 is designed as a bituminous binder for chip seals. It is crucial to apply it using well-calibrated distributors to ensure proper application.
Application Guidelines
- Distributor Setup: Ensure distributor nozzles and spray bars are appropriately sized and calibrated for the desired shot rate.
- Shot Rate Determination: Establish the shot rate through a laboratory chip seal design tailored to the project’s aggregate and existing pavement conditions.
- Temperature Requirements:
- Ensure air and pavement temperatures are sufficiently high for the emulsion to cure effectively.
- Ideal conditions for application are when air temperatures are above 50°F and rising.
Usage Tips
- Conduct thorough testing and calibration to achieve optimal performance.
- Monitor weather conditions to guarantee suitable application temperatures for effective curing.
Properties of Cationic Bitumen Emulsion RS 2 as per IS:8887-2004 with BTC Report
| Test Parameters | Test Results | IS Specification | Test Method |
| Viscosity by Say bolt viscometer | 150 SEC | 100-300 (at 50 °C) | IS 3117 |
| Residue on 600μ IS Sieve | 0.03% | 0.05% (Max) | IS:8887 |
| Storage Stability | 0.98 | 2% | IS:8887 |
| Particle Charge | Positive | Positive | Positive |
| Coagulation of Emulsion at low temp. | Nil | Nil | |
| Miscibility with water | No Coagulation | No Coagulation | IS:8887 |
| Tests on Residue | |||
| a) Residue by evaporation | 69% | 67% (Min) | IS:8887 |
| b) Penetration (25 °C/100 gm/5 sec) | 105 dmm | 80-150 dmm | IS:1203 |
| c) Ductility (27 °C/cm) | 89 | 50 cm (Min) | IS:1208 |
| d) Solubility in Trichloroethylene | 99.12 | 98% (Min) | IS:1216 |