In an application of anionic emulsion, negatively charged drops of asphalt are applied to a negatively charged surface. All components repel each other. The only way the emulsion can break is through the loss of water by evaporation. The more water evaporates, the closer particles get together until they can no longer be separated by a film of water.
PROPERTY | SS 60 | TEST METHOD1 |
---|---|---|
1) Binder Content, % (m/m) | 60-62 | SANS 4001 BT-3(5.2) |
2) Residue on sieving, g/100ml, Max. 2.1) 710 μm 2.1) 150 μm | 0.10 0.25 | SANS 4001 BT-3(5.2) SANS 4001 BT-3(5.2) |
3) Sedimentation after 60 complete rotations | Nil | SANS 4001 BT-3(5.6 |
4) Coagulation value, % (m/m), max - Portland cement | 2,0 Max | SANS 4001 BT-3(5.4) |
5) Typical density at 25o C in kg/litre | 1,000 | ASTM D 3142 / D 3142 M-11 |