Emulsion SS1 is used for Prime Coat application and perform several important functions such as coating and bonding loose mineral particles on the surface of the base, hardening and toughening the surface of the base, waterproofing the surface of the base by plugging capillary or interconnected voids, and providing adhesion or bond between the base and the asphalt mixture. This grade of emulsion penetrate quite deep in WMM / WBM surface providing an effective Prime Coat.
Bitumen emulsion SS1 is slow-setting, anionic type and are further characterized by their ability to remain stable on storage although produced with equipment that generates a wide range of shearing forces. Such characteristics are imparted to the asphalt emulsions through the use of emulsion-conditioner compositions comprising a partially desulfonated lignosulfonate, preferably an anionic or nonionic emulsifying agent and, optionally, a thickene.
Characteristics | - |
---|---|
Residue on 600 micron IS Sieve, percent by mass, Max |
0.05 |
Viscosity by saybolt furol viscometer, seconds 1) At 25℃ 2) At 50℃ |
20-100 - |
Coagulation of emulsion at low temperature1) | Nil |
Storage stability after 24 h, percent, Max | 2 |
Particle charge | - |
Coating ability and water resistance: 1) Coating, dry aggregate 2) Coating, after spraying 3) Coating, wet aggregate 4) Coating, after spraying |
- |
Stability to mixing with cement (% coagulation), Max | - |
Miscibility with water | Immiscible |
Tests on residue: 1) Residue by evaporation, percent, Min 2) Penetration 25℃/100g/5 sec 3) Ductility 27℃/cm, Min 4) Solubility I tricholoethylne, percent by mass, Min |
- - - 982) |
Distillation in percent volume of distillate recovered at 360℃ at 1) 190℃ 2) 225℃ 3) 260℃ 4) 316℃ 5) Residue at 360℃, percent, Min |
20-55 30-75 40-90 60-100 50 |
Water content, percent by mass, Max | 20 |