GRADES: RAPID SETTING (RS), MEDIUM SETTING (MS) & SLOW SETTING (SS)
Bitumen in different forms is used as a Binder in Road Construction at Ambient Temperature. Bitumen is made workable by emulsifying to form Bitumen Emulsion. Engineers all over the Country have acknowledged the necessity of emulsified Bitumen for Road Repairs/Constructions because of its reliability, economy and ease of application.
Considering various benefits associated with Bitumen Emulsions over conventional Bitumen to keep pace with the technology innovations in the Field of Road binders, our most advanced Research & Development Centre at Nandesari, Baroda has developed world class formulations for Cationic Bitumen Emulsions after extensive research work. SWASTIK Cationic Bitumen Emulsion complies with BIS Specifications IS: 8887- 1995 as well as International Specifications. Performance evaluation of test sections laid on national highways has established the efficacy of this all weather eco-friendly road binder.
Uses
Surface Dressing and Stabilizing Coat in Road Work
Variety
Bitumen Emulsions are classified in three Grades i.e. Rapid Setting, Medium Setting, & Slow Setting.
Rapid Setting (RS)
Emulsion Break is rapid and is further subdivided into RS-1 & RS-2
Medium Setting (Ms)
Emulsion Break is slower than RS and can be used for coarse materials with more amounts of fine aggregates.
Slow Setting (SS)
Emulsion Break is slowest and is generally used with fine aggregates. It is further subdivided into SS-1 & SS-2
Technical Specifications of Bitumen Emulsion (Cationic Type) as per IS:8887 – 2004
| Sr. No. | Characteristic | Grade of Emulsion | ||||
|---|---|---|---|---|---|---|
| RS-1 | RS-2 | MS | SS-1 | SS-2 | ||
| 1 | Residue on 600 micron IS Sieve, % mass Max. | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| 2 | Viscosity by Say bolt Furol Viscometer, Second at 25°C at 50°C | – 20-100 | – 100-300 | – 50-300 | 20-100 – | 20-100 – |
| 3 | * I ) Coagulation of emulsion at low temperatures. | NIL | NIL | NIL | NIL | NIL |
| 4 | Storage stability after 24 hrs % Max. | 2 | 1 | 1 | 2 | 2 |
| 5 | Particle charge | Positive | Positive | Positive | Weak Positive | Positive |
| 6 | Coating ability and water resistance (a) Coating, dry aggregate (b) Coating, after spraying (c) Coating, wet aggregate (d) Coaring, after spraying | – – – – | – – – – | Good Fair Fair Fair | – – – – | – – – – |
| 7 | Stability to mixing with cement ( % coagulation ) Max. | – | – | – | 2 | 2 |
| 8 | Miscibility with water ( Coagulation ) | NIL | NIL | NIL | – | NIL |
| 9 | Test On Residue a. Reside by Evaporation % Min. b. Penetration 25°C/100g/ 5 sec c. Ductility 27°C /cm Min. d. Solubility in trichloroethylene % Min. | 60 80-150 50 98 | 67 80-150 50 98 | 65 60-150 50 98 | 50 60-350 50 98 | 60 60-120 50 98 |
| 10 | Distillation percent, by volume at : a. 190° C b. 225° C c. 260° C d. 315° C | – – – – | – – – – | – – – – | 20-55 30-75 40-90 60-100 | – – – – |
| 11 | Water content, percent by mass, Max | – | – | – | 20 | – |