Specification
Specification of Bitumen Emulsion as per IS 8887:2004
| Characterstics |
Grades of Emulsion |
Method of Test,
Ref to |
| RS-1 |
RS-2 |
MS |
SS-1 |
SS-2 |
1:No. |
Annex of
this standard |
Residue on 600 micron
IS Sieve, percent by
mass, Max |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
-- |
B |
Viscosity by saybolt furol
viscometer, seconds: |
|
|
|
|
|
3117 |
|
| 1) At 25 Deg. C |
-- |
-- |
-- |
20-100 |
30-150 |
|
|
| 2) At 50 Deg. C |
20-100 |
30-150 |
50-300 |
|
|
|
|
Coagulation of emulsion
at low temperature C |
Nil |
Nil |
Nil |
Nil |
Nil |
-- |
C |
Storage stability after 24
h, percent, Max |
2 |
1 |
1 |
2 |
2 |
-- |
D |
| Particle charge |
Positive |
Positive |
Positive |
Weak
Positive |
Positive |
-- |
E |
Coating ability and water
resistance: |
|
|
|
|
|
|
|
| 1. Coating, dry aggregate |
|
|
Good |
|
|
|
|
| 2. Coating, after spraying |
|
|
Fair |
|
|
|
|
| 3. Coating, wet aggregate |
|
|
Fair |
|
|
|
|
| 4. Coating, after spraying |
|
|
Fair |
|
|
|
|
Stability to mixing with
cement (percentage
coagulation), Max |
|
|
|
2 |
2 |
|
G |
| Miscibility with water |
No
coagulation |
No
coagulation |
No
coagulation |
|
No
coagulation |
|
H |
Advantages of Emulsion over Conventional Bitumen
| Particualrs |
Bitumen |
Emulsion |
| Heating |
Required |
Not Required |
| Pollution |
High |
Nil |
| Coating |
Good at low Viscosity |
Excellent at ambient temp. |
| Surface Coverage |
Less |
More |
| Application |
Hard |
Easy |
| Anti-Stripping properties |
Average |
Excellent |
| Execution |
Slow |
Fast |
|
