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

 

 

 

 

 

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