Asia Bitumen as one the main producer of Bitumen Emulsion grade RS-2 for asphalt coating uses like Tak coat and prime coat have special place of supplying these grades of Bitumen in the middle east.
Bitumen Emulsion RS-2
Description
Bitumen Emulsion RS-2 Description
Bitumen Emulsion RS-2 is an anionic, rapid setting bitumen emulsion, and its main uses is as a surface treatment and sealer. It is made by dispersing a bituminous material in water, employing a selected emulsifying agent to create a stable waterborne product, which can be applied without the need for preheating. The Bitumen Emulsion RS-2 is suitable to set rapidly
and then come together to create a sticky bitumen layer on the aggregate surface or pavement surfaces. binding the chipping in place, sealing imperfections or coating the surface to a thin thickness. It is important because of that product’s easy use and the ability to rapidly set after direct contact with aggregate or pavement.
Bitumen Emulsion RS-2 Properties
Its type is Anionic, Rapid Setting (RS family) and It has A smooth, black water based mixture with fine bitumen particles appearance.
Bitumen (solids) Content: Typically, the solids fraction of bitumen emulsions lies between 55%–65% by weight exact content depends on the manufacturer and grade.
Setting Behavior: Rapid breaking on aggregate designed to form a continuous bitumen film quickly after application.
Temperature Sensitivity: Because the emulsion is water borne, it reduces the need for heating and is safer and more energy efficient than cutback or hot binders.
Environmental or Safety Benefits: Low VOCs (evaporation is mainly water), lower energy demand for application versus solvent based binders.
Bitumen Emulsion RS-2 Uses
Bitumen Emulsion RS-2 is appropriate for a range of surface treatment and maintenance operations:
Surface Sealing or Fog Sealing: Rapid film formation makes RS-2 ideal for sealing aged pavements and improving surface cohesion.
Prime and Tack Applications: Used as a bonding tack coat where quick tack development is required prior to laying aggregates.
Surface Dressing (chip seal) and Slurry Treatments: Works well when immediate adhesion between bitumen and chipping is desired to minimize loss of chips.
Cold Mix and Pothole Patching (factory or field mixes): Can be mixed into cold asphalt mixtures and repair mixes where heating is impractical.
Bitumen Emulsion RS-2 Advantages
Energy and Cost Efficiency: No need for extensive heating saves fuel and reduces operational cost compared with hot binders or cutbacks.
Rapid Setting or Fast Reopening: RS-2’s rapid break helps speed construction and traffic reopening, reducing disruption on busy routes.
Better Environmental Profile: Minimal solvent emissions (water is the continuous phase), lowering air emissions during application.
Stick Well to Damp Surfaces: Emulsions tolerate some moisture on aggregates or pavements, improving application flexibility.
Versatility: Suitable for multiple maintenance operations (sealing, tack, chip seal), making RS-2 a cost effective stock item for contractors.
Bitumen Emulsion RS-2 Specification
| Properties | Min | Max | Test Method |
| Viscosity @25°C, SFS | 20 | 100 | ASTM D244 |
| Storage Stability, 24 h, % | – | 1 | ASTM D6930 |
| Settlement, 5 days | _ | 5% | ASTM D244 |
| Particle Charge Test | Negative | Negative | ASTM D7402 |
| Sieve Test, % | – | 0.1 | ASTM D6933 |
| Residue by Distillation, % | 63 | 67 | ASTM D6997 |
| Penetration of Residue at 25°C (100 g, 5 s), 0.1 mm | 100 | 200 | ASTM D5 |
| Ductility of Residue at 25°C, 5 cm/min, cm | 40 | – | ASTM D113 |
| Solubility in Trichloroethylene, % | 97.5 | – | ASTM D2042 |





Reviews
There are no reviews yet.