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Bitumen AH70 AH90 AH110 AH50

bitumen ah70 ah90 ah130 ah50

Bitumen AH grade supplier AH70 AH 90 AH130 AH50

We are AH grade bitumen supplier in china since 2006 in bag, drum, flexi and bulk vessel including bitumen AH70 AH90 AH130 AH50 to Qingdao, Shanghai, Tianjin and Dalian ports.

Differences of ASTM with Chinese standard?

The main items is ductility that in Chinese standard at 15 centigrade should be 100cm but ASTM standard at 25C is 100CM and the rest index is same.

China bitumen production capacity

Basekim is main bitumen supplier in china since 2006 Chinese bitumen manufacturer producing 33 million tons of bitumen annually and importing 20 million tons also from Iran, Korea and Thailand in bag, drum, flexi and bulk vessel.

Question on different grade of bitumen in China

1. Different penetration levels

The penetration of No. 30 asphalt is 20~40.

The penetration of No. 70 asphalt is 60~80.

2. Different ductility

The ductility of No. 30 asphalt is ≥ 50.

The penetration of No. 70 asphalt is ≥100.

3. Different softening points

The softening point of No. 30 asphalt is 55~72.

The softening point of No. 70 asphalt is 44~54.

1. The softening points of 70# asphalt and 90# asphalt are different.

(1) The softening point of 70# asphalt is 46 degrees Celsius.

(2) The softening point of 90# asphalt is 45 degrees Celsius.

2. The penetration of 70# asphalt and 90# asphalt is different.

(1) The penetration of 70# asphalt is 60-80.

(2) The penetration of 90# asphalt is 80-100.

3. The ductility of 70# asphalt and 90# asphalt is different.

(1) The ductility of 70# asphalt is 25.

(2) The ductility of 90# asphalt is 45.

4. The dynamic viscosity of 70# asphalt and 90# asphalt are different.

(1) The dynamic viscosity of 70# asphalt is 180Pa·s.

(2) The dynamic viscosity of 90# asphalt is 160Pa·s.

Usage of different grade of bitumen in different province of china

We are supplier of bitumen in China graded by penetration, No. 10 asphalt and No. 70 asphalt refer to the depth of penetration of the asphalt. The depth of No. 10 asphalt (penetration 80-100) indicates that the asphalt is soft, and No. 70 asphalt is hard (penetration 60). -80), after such classification, the temperature in the north is low and soft asphalt should be used, while the temperature in the south is high and hard asphalt should be used.

Shandong province bitumen supplier

Generally, No. 90 asphalt is used in the north and west of Shandong, and even No. 110 asphalt is used in colder areas, while No. 70 asphalt is used in the south of Shandong.
What Chinese bitumen buyers to pay attention to is that the prices of 70 and 90 are the same, but there may be regional differences. For example, if you are in the north and use less 70 asphalt, you may have more inventory, so it is cheaper than 90, or if you use 90 in the south, Less, it can be cheaper than 70 for shipping.

Petroleum Asphalts for Heavy Traffic Road Pavement

  1. GB/T 15171-2017: Asphalt for Road and Bridge Construction: This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality certificate of asphalt for road and bridge construction.

  2. GB/T 8161-2008: Test Method for Determination of Fraass Breaking Point of Bitumen: This standard specifies a method for determining the Fraass breaking point of bitumen.

  3. GB/T 4509-2010: Test Methods for Softening Point of Bitumen (Ring-and-Ball Apparatus): This standard specifies the test method for the determination of the softening point of bitumen using the ring-and-ball apparatus.

  4. GB/T 4508-2010: Test Methods for Penetration of Bitumen: This standard specifies the test method for the determination of the penetration of bitumen.

Popular bitumen specification in China

70A Bitumen or Bitumen AH70

Item

JTG F40-2004 Technical requirements

ATDM

Penetration (25℃, 100g, 5s), 0.1mm

60~80

77

Penetration Index (PI)

-1.5~+1.0

-0.97

Softening Point (ring and ball method), ℃

≥46

48.0

Extensibility (10℃,   5cm/min), cm

≥20

84

Extensibility (15℃,   5cm/min), cm

≥100

>100

Dynamic Viscosity at 60℃, Pa.s

≥180

211.5

Flash Point, ℃

≥260

334

Solubility, %

≥99.5

99.96

Density (15℃), g/cm3 

Measured Value

1.038

Wax Content, %

≤2.2

2.1

Thin Film Oven

163℃, 5h

Quality Change, %

±0.8

-0.302

Penetration Ratio, %

≥61

64.9

Extensibility (10℃), cm

≥6

7

​​​ 90A bitumen or Bitumen AH90​

Item

JTG F40-2004 Technical requirements

ATDM

Penetration (25℃, 100g, 5s),   0.1mm

80~100

92

Penetration Index   (PI)

-1.5~+1.0

-0.93

Softening Point (ring and   ball method), ℃

≥45

46.5

Extensibility (10℃, 5cm/min),   cm

≥45

>100

Extensibility (15℃, 5cm/min),   cm

≥100

>100

Dynamic Viscosity   at 60℃, Pa.s

≥160

179.6

Flash Point, ℃

≥260

331

Solubility, %

≥99.5

99.94

Density (15℃), g/cm3 

Measured Value

1.035

Wax Content, %

≤2.2

1.7

Thin Film Oven

163℃, 5h

Quality Change, %

±0.8

-0.046

Penetration Ratio, %

≥57

69.6

Extensibility (10℃), cm

≥8

14

SBS Modified bitumen

Item

JTG F40-2004

I-C Technical requirements

JTG F40-2004

I-D Technical requirements

Modified bitumen of   ATDM

Basekim Modified bitumen

Penetration (25℃, 100g, 5s),   0.1mm

60~80

40~60

76

51

Penetration Index   (PI)

≥-0.4

≥0

+1.04

+0.31

Softening Point (ring and   ball method), ℃

≥55

≥60

79.5

84.5

Extensibility (5℃, 5cm/min),   cm

≥30

≥20

42

30

Kinematic Viscosity (135℃), Pa.s

≤3

≤3

1.8

2.3

Flash Point, ℃

≥230

≥230

327

302

Solubility, %

≥99

≥99

99.88

99.70

Elastic Recovery (25℃), %

≥65

≥75

95

96

Separation, 48h Softening Point Difference, ℃

≤2.5

≤2.5

0.2

0.4

Thin Film Oven

163℃,5h

Quality Change, %

±1.0

±1.0

+0.011

-0.04

Penetration Ratio, %

≥60

≥65

78

76

Extensibility (5℃), cm

≥20

≥15

26

17