Bitumen Emulsions

Our product profile in Bitumen Emulsions includes Rapid Setting(RS-1), Medium Setting(MS) and Slow Setting (SS-1).

Bitumen emulsion consists of three basic ingredients: bitumen, water, and an emulsifying agent. Based on specifications it may contain other additives, such as stabilizers, coating improvers, anti-strips, or break control agents. It is well known that water and asphalt will not mix, except under carefully controlled conditions using highly specialized equipment and chemical additives.

Uses of Bitumen Emulsion:
Cationic emulsions are used at ambient temperatures with aggregates, which need not be completely dry. Emulsions are less hazardous to use and can be applied in a wider range of conditions.

Applications Bitumen Emulsion:

Prime Coat: 
It is typically have been spray applications of low viscosity asphalt on granular base in preparation for placing an asphalt mixture. A prime coat performs several important functions:

  • Coats and bonds loose mineral particles on the surface of the base.
  • Hardens or toughens the surface of the base.
  • Waterproofs the surface of the base by plugging capillary or interconnected voids.
  • Provides adhesion or bond between the base and the asphalt mixture.
 

Tack Coat: 
A tack coat is a very light spray application of diluted asphalt emulsion. It is used to create a bond between an asphalt overlay being placed and the existing surface. A tack coat is recommended for all overlays and it performs the several important functions:

  • Tack coat helps in holding the patch and provides a watertight seal between the patch and surrounding pavement.
  • Tack coat also is essential in a good patching operation.
 

Seal Coat: 
Seal Coat whether it is Liquid or Premix Seal Coat, is applied before 4-6 hours after the premix-carpeting. It seals and protects the base and provides strength at the road surface so that the base can resist the abrasive and disruptive forces of traffic. It performs the several important functions:

  • It seals an existing bituminous surface against the intrusion of air and water.
  • It arrests the deterioration of a surface showing signs of distress
  • Seal Coat enriches an existing dry surface.
 

Specifications of Bitumen Emulsions RS-1, MS & SS-1

SL Testing Parameters RS-1 MS CSS-1
01
Residue on 600 micron, % by mass
Max 0.5
0.5
Max 0.5
02
Viscosity saybolt Furol Viscometer at 50°C
20-100
50-300
50-300
03
Coagulation of Emulsion at Low Temperature
Nil
Nil
Nil
04
Storage Stability after 24 Hrs, % by mass
Max 2
Max 1
Max 1
05
Particle Charge
+Ve
+Ve
+Ve
06
Miscibility with water
No Coagulation
No Coagulation
No Coagulation
07
a) Residue by evaporation, %
Min 60
Min 65
Min 65
b) Penetration at 25°C/100g/5sec, 1/10mm
80-150
60-150
60-150
c) Ductility at 27°C/cm
Min 50
Min 50
Min 50
d)Solubility in trichloroethylene, % by mass
Min 98
Min 98
Min 98