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IS : 8887 : 2004 (ISI MARKED)
Break is rapid even with coarse aggregate of relatively low surface area. Rapid setting Emulsion is further sub divided into RS-1 and RS-2 types.
Break is sufficiently slow that the emulsion can be mixed with coarse aggregate containing a high proportion of fine material.
Break is sufficiently slow to allow mixing with aggregate containing fine material of relatively high surface area.Slow setting emulsion is further sub divided into SS-1 and SS-2 types.
Technical.lRequirements of BitumenEmulsion(Cationic Type) IS:8887:2004 (Clauses 4.2 and 6.2) |
||||||
---|---|---|---|---|---|---|
Sr. No. |
Characteristics |
Grade of Emulsion | ||||
RS-1 |
RS-2 |
MS |
SS-1 |
SS-2 |
||
1. | Residue on 600 micron IS sieve (Percent by mass) Max. |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
2. | Viscosity by Saybolt Furol Viscometer, Sec (a) 25°C (b)50°C |
- 20-100 |
- 10Q-300 |
- 50-300 |
20-100 - |
30-150 - |
3. | *1) Coagulation of Emulsion At low temperature |
Nil | Nil | Nil | Nil | Nil |
4. | Storage Stability after 24 hrs. Percent Max. | 2 | 1 | 1 | 2 | 2 |
5. | Particle Charge | Positive | Positive | Positive | Positive | Positive |
6. | Coating ability and water resistance (a) Coating dry aggregate (b) Coating after spraying (c) Coating,wet aggregate (d) Coating after spraying |
- - - - |
- - - - |
Good Fair Fair Fair |
- - - - |
- - - - |
7. | Stability to mixing with cement (percentage coagulation) Max. |
- | - | - | 2 | 2 |
8. | Miscibility with water | No coagulation |
No coagulation |
No coagulation |
- | No coagulation |
9. | Tests on residue: (a) Residue by evaporation percent Min. (b) Penetration 25°C/100g/5sec/ 1/10 mm. (c) Ductility 25°C/cm Min. (d) Solubility in trichloroethylene Min.% |
60 80-150 50 98 |
67 801-150 50 98 |
65 60-150 50 98 |
50 60-350 50 98 |
60 60-120 50 98 |
10. | Distillation percent,by volume at: (1) 190°C (2) 225°C (3) 260°C (4) 315°C |
- - - - |
- - - - |
- - - - |
20-55 30-75 40-90 60-100 |
- - - - |
11. | Water content, percent by mass, Max | - | - | - | 20 |
*1) The requirement shall be applicable only under situations where the ambient temperature is below 15°C
APPLICATION | RAPID SETTING |
MEDIUM SETTING |
SLOW SETTING |
---|---|---|---|
PENETRATION MACADAM | √ | ||
PRIME COAT | √ | √ | |
TACK COAT | √ | ||
SLURRY SEAL | √ | √ | |
FOG SEAL | √ | ||
SOIL STABILISATION | √ | √ | |
SURFACE DRESSING | √ | ||
DUST BINDING | √ | ||
CRACK FILLER | √ | ||
COLD MIX | √ | √ | |
MULCH TREATMENT | √ |