Air Blowing Process

40/50 Bitumen

The bitumen is provided during the process of oxidation of vacuum bottom in bitumen production units. Due to its high air blowing and penetration, it is used in tropical areas. 

BITUMEN PENETRATION GRADE 40/50
BLOWN BITUMEN 40/50 Specification Test Method
Specific gravity @ 25/25° C 1.01-1.06 D-70
Penetration @ 25° C 40/50  D-5
Softening point ° C  52/60  D-36
Ductility @ 25° C  100 min  D-113
Loss on Heating (wt) % 0.2 max D-6
Drop in Penetration after Heating % 20 max D- 6 & D-5
Flash point ° C 250 min D-92
Solubility in Cs2 (wt) % 99.5 min D-4
Spot Test Negative ٭A.A.S.H.O.T.102

 

 60/70 Bitumen

The bitumen is provided during the process of oxidation of vacuum bottom in bitumen production units. Due to its medium air blowing and penetration,it is used in mild areas.

BITUMEN PENETRATION GRADE 60/70
BLOWN BITUMEN 60/70 Specification Test Method
Specific gravity @ 25/25° C 1.01-1.06 D-70
Penetration @ 25° C 60/70  D-5
Softening point ° C 49/56  D-36
Ductility @ 25° C  100 min  D-113
Loss on Heating (wt) % 0.2 max D-6
Drop in Penetration after Heating % 20 max D- 6 & D-5
Flash point ° C 250 min D-92
Solubility in Cs2 (wt) % 99.5 min D-4
Spot Test Negative ٭A.A.S.H.O.T.102

 

85/100 Bitumen

The bitumen is provided during the process of oxidation of vacuum bottom in bitumen production units. Due to its relatively low air blowing and penetration,it is used in cold areas.

BITUMEN PENETRATION GRADE 85/100
BLOWN BITUMEN 85/100 Specification Test Method
Specific gravity @ 25/25° C 1.01-1.05 D-70
Penetration @ 25° C 85/100  D-5
Softening point ° C 45/52  D-36
Ductility @ 25° C  100 min  D-113
Loss on Heating (wt) % 0.5 max D-6
Drop in Penetration after Heating % 20 max D- 6 & D-5
Flash point ° C 250 min D-92
Solubility in Cs2 (wt) % 99.5 min D-4
Spot Test Negative ٭A.A.S.H.O.T.102

 

Viscosity Grade Bitumen (VG Grad)

To grade the bitumen based on viscosity BIS revised IS-73-1992 specifications (Viscosity at 60°C) and as such there are four grades VG-10, VG-20, VG-30 & VG-40. A few qualification tests like specific gravity, water content, ductility, loss on heating & fares breaking point were removed from IS:73-1992 as these tests do not have any relationship with the performance of the product.

Viscosity Grade Bitumen is widely used in spraying applications such as surface-dressing and paving in very cold climate. It is also used to manufacture bitumen emulsion and modified bitumen products.

SPECIFICATION FOR VISCOSITY GRADE BITUMEN


PROPERTY

 

RANGE

VG-10

VG-20

VG-30

VG-40

ABSOLUTE VISCOSITY 60°C POISE MIN

800

1000

2400

3200

KINEYATIC VISCOSITY 135°C CST MIN

250

100

350

400

FLASH POINT MIN°C

220

220

220

220

SOFTENING POINT MIN °C

40

45

47

50

PENETRATION 0.1 MIN.25 °C

80-100

60-80

50-70

40-60

DVCTILITY ON MIN .25°C

75

50

40

25

VICOSITY RATIO 60°C MAX

4

4

4

4

SOLURILITY IN TCE MIN

99

99

99

99

 

PERFORMANCE GRAD (PG) BITUMEN 

Aimbitumen Company is capable of selling bitumen to its customers based on PG method.
PG is defined for polymer modified bitumen and pure bitumen based on environmental conditions and temperature. ayah Isfahan Company has the capacity to produce all these grades of PG.

 

PG GRADE BITUMEN IN AYEGH ISFAHAN 

High Temperature Performance

Low Temperature Performance

PG 46 -34, -40,-46
PG 52 -10, -16, -22, -28, -34,-40,-46V
PG 58 -10, -16, -22, -28, -34, -40
PG 64 -10, -16, -22, -28, -34, -40
PG 70 -10, -16, -22, -28, -34, -40
PG 76 -10, -16, -22, -28, -34
PG 82 -10, -16, -22, -28, -34

 

Bitumen Emulsions

Bitumen emulsion consists of three basic ingredients: bitumen, water, and an emulsifying agent. Based on specifications it may contain other additives, such as stabilizers, coating improvers, anti-strips, or break control agents. It is well known that water and asphalt will not mix, except under carefully controlled conditions using highly specialized equipment and chemical additives.


AIMBITUMEN Exporting, Manufacturing and Supplying an considerable variety of Bitumen Emulsion and we offer Bitumen Emulsion at most acceptable costs.

Bitumen emulsions are divided into three categories in terms of setting:

1. Rapid-setting (RS)
2. Medium-setting (MS)
3. Slow-setting (SS)

Anionic Emulsions  
RS MS SS

RS-1

MS-1

SS-1

RS-1

RS-2

HFRS-2

MS-1

MS-2

MS-2h

HFMS-1

HFMS-2

HFMS-2h

HFMS-2s

SS-1

SS-1h

 

Cationic Emulsions  
CRS CMS CSS

CRS-1

CRS-2

CMS-1

MS-2h

CSS-1

CSS-1h

 

Cutback  Bitumen

Cutback Bitumen is made by reducing the viscosity of and ordinary bitumen by adding mostly petroleum type solvent. Cutback Bitumen are used because their viscosity is lower than that of neat asphalt and can thus be used in low temperature applications. After a cutback is applied the solvent evaporates away and only the Bitumen is left. A cutback bitumen is said to cure as the petroleum solvent evaporates. Cutback bitumen are typically used as prime coats and tack coats. Generally Cutback Bitumen are divided into three groups depending on their volatility of the solvent added:

Slow Curing (SC) SC-70 SC-250 SC-800 SC-3000, Medium Curing (MC) MC-30 MC-70 MC-250 MC-800 MC-3000, Rapid Curing (RC) RC-70 RC-250 RC-800 RC-3000. 

 

MC30 Specifications

Typical Physical & Performance Properties
CHARACTERISTIC

UNIT 

UNIT 

 TEST METHOD

KIN.VIS@60

CST

60-30 

ASTM D-2170

FLASH POINT 

C

38 MIN 

 ASTM D-3143

WATER CONTENT 

 %VOL

0.2 MAX

ASTM D-95220

DISTILLATE TO 360
225
260
315

%VOL

25 MAX
70-40
93-7

ASTM D-402

RESIDUE FROM DISTILLATION TO 360

50 MIN 

 ASTM D-402

TEST ON RESIDUE BITUMEN FROM DISTILLATION

PENETRATION@25 

 C 

250-120 

 ASTM D-5

DUCTILITY 

 C

100 MIN  

ASTM D-113 

SOLUBILITY IN TRICHLOROETHYLENE   %WT   99 MIN   ASTM D-2042 

 

MC250 Specifications

Typical Physical & Performance Properties
CHARACTERISTIC

UNIT 

UNIT 

 TEST METHOD

KIN.VIS@60

CST

500-250 

ASTM D-2170

FLASH POINT 

C

66 MIN

 ASTM D-3143

WATER CONTENT 

 %VOL

0.2 MAX

ASTM D-95

DISTILLATE TO 360
225
260
315

%VOL

10
MAX
55-15
87-60

ASTM D-402

RESIDUE FROM DISTILLATION TO 360

 67 MIN

 ASTM D-402

TEST ON RESIDUE BITUMEN FROM DISTILLATION

PENETRATION@25 

 C 

250-120 

 ASTM D-5

DUCTILITY

 C

100 MIN 

ASTM D-113

SOLUBILITY IN TRICHLOROETHYLENE 

 %WT 

 99 MIN 

 ASTM D-2042

 

MC3000 Specifications

Typical Physical & Performance Properties
CHARACTERISTIC

UNIT 

UNIT 

 TEST METHOD

KIN.VIS@60

CST

 6000-3000 

ASTM D-2170

FLASH POINT 

C

 66 MIN

 ASTM D-3143

WATER CONTENT 

 %VOL

0.2 MAX

ASTM D-95

DISTILLATE TO 360
225
260
315

%VOL

15-0
75-15
80 MIN

ASTM D-402

RESIDUE FROM DISTILLATION TO 360

67 MIN 

 ASTM D-402

TEST ON RESIDUE BITUMEN FROM DISTILLATION

PENETRATION@25 

 C 

250-120 

 ASTM D-5

DUCTILITY 

 

 C

100 MIN  

ASTM D-113 

SOLUBILITY IN TRICHLOROETHYLENE 

 %WT   99 MIN   ASTM D-2042