Bitumen is graded based on absolute viscosity at 60 ºC or kinematic viscosity at 135 ºC. The SI physical unit of dynamic viscosity is Poise and kinematic viscosity is expressed in CentiStokes. Pure bitumen has been graded based on AASHTO-M226 and ASTM-D3381 standards.
Table 1-1: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
5/2 AC- |
5 AC- |
10 AC- |
20 AC- |
40AC- |
|
|
Viscosity at 60 C |
50±250 |
100±500 |
200±1000 |
400±2000 |
800±4000 |
|
Viscosity at 135 C |
80 |
110 |
150 |
210 |
300 |
|
Penetration at 25 C, 100 grams, five seconds |
200 |
120 |
70 |
40 |
20 |
|
163 |
177 |
219 |
232 |
232 |
|
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
|
Test on the residue of thin bitumen layer |
|||||
|
Viscosity at 60 C |
1000 |
2000 |
4000 |
8000 |
16000 |
|
Ductility at 25 C, 5cm/min |
(1)100 |
100 |
50 |
20 |
10 |
|
Stain Test |
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|
Naphtha Solvent |
Negative |
||||
|
Naphtha-Xylene Solvent, Xylene Percentage |
Negative |
||||
|
Naphtha-Xylene Solvent, Xylene Percentage |
Negative |
||||
Table 1-2: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
Test |
Viscosity |
|||||
|
5/2 AC- |
5 AC- |
10 AC- |
20 AC- |
30AC- |
40AC- |
|
|
Viscosity at 60 C |
50±250 |
100±500 |
200±1000 |
400±2000 |
600±3000 |
800±4000 |
|
Viscosity at 135 C |
125 |
175 |
250 |
300 |
350 |
400 |
|
Penetration at 25 C, 100 grams, five seconds |
220 |
140 |
80 |
60 |
50 |
40 |
|
Flash point, Cleveland open cup |
163 |
177 |
219 |
232 |
232 |
232 |
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
|
Test on the residue of thin bitumen layer |
||||||
|
Heating loss |
– |
0/1 |
5/0 |
5/0 |
5/0 |
5/0 |
|
Viscosity at 60 C |
1000 |
2000 |
4000 |
8000 |
12000 |
16000 |
|
Ductility at 25 C, 5cm/min |
(1)100 |
100 |
75 |
50 |
40 |
25 |
|
Stain Test |
||||||
|
Naphtha Solvent |
Negative |
|||||
|
Naphtha-Xylene Solvent, Xylene Percentage |
Negative |
|||||
|
Naphtha-Xylene Solvent, Xylene Percentage |
Negative |
|||||
Table 1-3: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
Test |
Viscosity |
||||
|
10AR- |
20AR- |
40AR- |
80AR- |
160AR- |
|
|
Viscosity at 60 C |
250±1000 |
500±2000 |
1000±4000 |
2000±8000 |
4000±16000 |
|
Viscosity at 135 C |
140 |
200 |
275 |
400 |
550 |
|
Penetration at 25 C, 100 grams, five seconds |
65 |
40 |
25 |
20 |
20 |
|
Penetration at 25 C, 100 grams, five seconds. minimum |
– |
40 |
45 |
50 |
52 |
|
Ductility at 25 C, 5cm/min |
(2)100 |
(2)100 |
75 |
75 |
75 |
|
Test on Primary Bitumen |
|||||
|
Flash point, Cleveland open cup |
205 |
219 |
227 |
232 |
238 |
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
Table 1-4: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
Test |
Viscosity |
||||
|
5/2AC- |
5AC- |
10AC- |
20AC- |
40AC- |
|
|
Viscosity at 60 C |
50 ±250 |
100 ±500 |
200 ±1000 |
400 ±2000 |
800 ±4000 |
|
Viscosity at 135 C |
80 |
110 |
150 |
210 |
300 |
|
Penetration at 25 C, 100 grams, five seconds |
200 |
120 |
70 |
40 |
20 |
|
Flash point, Cleveland open cup |
163 |
177 |
219 |
232 |
232 |
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
|
Test on Residue |
|||||
|
Viscosity at 60 C |
1250 |
2500 |
5000 |
10000 |
20000 |
|
Ductility at 25 C, 5cm/min |
(1)100 |
100 |
50 |
20 |
10 |
Table 1-5: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
Test |
Viscosity |
|||||
|
5/2AC- |
5AC- |
10AC- |
20AC- |
30AC- |
40AC- |
|
|
Viscosity at 60 C |
50 ±250 |
100 ±500 |
200 ±1000 |
400 ±2000 |
600±3000 |
800 ±4000 |
|
Viscosity at 135 C |
125 |
175 |
250 |
300 |
350 |
400 |
|
Penetration at 25 C, 100 grams, five seconds |
220 |
140 |
80 |
60 |
50 |
40 |
|
Flash point, Cleveland open cup |
163 |
177 |
219 |
232 |
232 |
232 |
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
|
Test on the residue of thin bitumen layer |
||||||
|
Viscosity at 60 C |
1250 |
2500 |
5000 |
10000 |
15000 |
20000 |
|
Ductility at 25 C, 5cm/min |
(1)100 |
100 |
75 |
50 |
20 |
10 |
Table 1-6: Technical Specifications of Pure Bitumen Based on Viscosity at 60 oC (AASHTO-M226)
|
Test on the residue of thin bitumen layer |
Viscosity |
||||
|
1000AR- |
2000AR- |
4000AR- |
8000AR- |
16000AR- |
|
|
Viscosity at 60 C |
250 ±1000 |
500±2000 |
1000 ±4000 |
2000±8000 |
4000 ±16000 |
|
Viscosity at 135 C |
140 |
200 |
275 |
400 |
550 |
|
Penetration at 25 C, 100 grams, five seconds |
65 |
40 |
25 |
20 |
20 |
|
Penetration at 25 C, 100 grams, five seconds. minimum |
40 |
45 |
50 |
52 |
|
|
Ductility at 25 C, 5cm/min |
(1)100 |
(2)100 |
75 |
75 |
75 |
|
Test on residue |
|||||
|
Flash point, Cleveland open cup |
205 |
219 |
227 |
232 |
238 |
|
Solubility in trichloroethylene |
0/99 |
0/99 |
0/99 |
0/99 |
0/99 |
