Penetration Grade Bitumen
Bitumen penetration grade
Bitumen penetration grades are ideal for paving roads and other surfaces. They are named after their method of grading. For classifying bitumen after production, we use a device named penetrometer. The device has a standard needle that penetrates the sample of bitumen and helps us measures the hardness level of bitumen. If the needle goes easily into the bitumen sample in a given time, the bitumen is softer, but if it struggles to enter the sample, it is harder. The softest grade of bitumen penetration is called 100/120, and the hardest grade of bitumen penetration is called 30/40. Other grades of bitumen penetration are 40/50, 50/70, 60/70, 80/100, and 85/100.
Bitumen penetration 60/70
The most conventional grade of bitumen that performs well in the majority of road projects, is bitumen penetration 60/70. This grade of bitumen is the best option for coating and adhesion of aggregates in a wide range of temperatures (from -22 to +76).Although this grade of bitumen is less processed in comparison to other grades of bitumen, its quality is acceptable. To ensure that bitumen 60/70 will stand up to various temperatures, we do a number of tests on it, right after production. Among these tests are penetration, softening point, ductility, and flash point. As bitumen pen 60/70 is widely used across the world, it has hundreds of producers, among them the Middle Eastern countries. The region is currently a hub for bitumen 60/70 traders. The quality of bitumen pen 60/70 in this region is guaranteed with an acceptable amount of valuable hydrocarbons present in it. In addition, the price of this bitumen in the Middle East is much affordable than other countries too.
Bitumen Penetration 80/100
Another widely used grade of penetration is bitumen 80/100. This bitumen’s level of hardness makes it ideal for paving roads in India and Central African countries. The popularity of bitumen pen 80/100 lies also in the fact that it can reduce the costs of road construction substantially. With an affordable price, this grade of bitumen helps traders with increasing their margins and end users with extending the service life of the roads. Just like bitumen pen 60/70, main refiners and suppliers of 80/100 grade are located in the Middle East. The region is one of the leading producers of crude oil in the world, therefore, its capacity for producing bitumen with premium quality is exceptional. Bitumen 80/100 in the Middle East is much affordable than other countries as well
Specification
Bitumen Penetration Grade 30/40
| CHARACTERISTICS | TEST METHOD | UNIT | MIN. | MAX. |
|---|---|---|---|---|
| Specific Gravity at 25°C | ASTM D70 | °C | 1.01 | 1.05 |
| Penetration at 25°C, 100g, 5s | ASTM D5 | mm | 30 | 40 |
| Softening Point | ASTM D36 | °C | 51 | 60 |
| Ductility at 25°C | ASTM D113 | Cm | 100 | |
| Loss on heating | ASTM D6 | % | 0.5 | |
| Drop in penetration after heating | ASTM D5 | % | 20 | |
| Flash point | ASTM D92 | °C | 250 | |
| Solubility in Trichloroethylene | ASTM D2042 | % | 99.5 |
Bitumen Penetration Grade 40/50
| CHARACTERISTICS | TEST METHOD | UNIT | MIN. | MAX. |
|---|---|---|---|---|
| Specific Gravity at 25°C | ASTM D70 | °C | 1.01 | 1.05 |
| Penetration at 25°C, 100g, 5s | ASTM D5 | mm | 40 | 50 |
| Softening Point | ASTM D36 | °C | 52 | 60 |
| Ductility at 25°C | ASTM D113 | Cm | 100 | |
| Loss on heating | ASTM D6 | % | 0.5 | |
| Drop in penetration after heating | ASTM D5 | % | 20 | |
| Flash point | ASTM D92 | °C | 250 | |
| Solubility in Trichloroethylene | ASTM D2042 | % | 99.5 |
Bitumen Penetration Grade 60/70
| CHARACTERISTICS | TEST METHOD | UNIT | MIN. | MAX. |
|---|---|---|---|---|
| Specific Gravity at 25°C | ASTM D70 | °C | 1.01 | 1.06 |
| Penetration at 25°C, 100g, 5s | ASTM D5 | mm | 60 | 70 |
| Softening Point | ASTM D36 | °C | 49 | 56 |
| Ductility at 25°C | ASTM D113 | Cm | 100 | |
| Loss on heating | ASTM D6 | % | 0.2 | |
| Drop in penetration after heating | ASTM D5 | % | 20 | |
| Flash point | ASTM D92 | °C | 250 | |
| Solubility in Trichloroethylene | ASTM D2042 | % | 99 |
Bitumen Penetration Grade 80/100
| CHARACTERISTICS | TEST METHOD | UNIT | MIN. | MAX. |
|---|---|---|---|---|
| Specific Gravity at 25°C | ASTM D70 | °C | 1.01 | 1.05 |
| Penetration at 25°C, 100g, 5s | ASTM D5 | mm | 80 | 100 |
| Softening Point | ASTM D36 | °C | 42 | 52 |
| Ductility at 25°C | ASTM D113 | Cm | 100 | |
| Loss on heating | ASTM D6 | % | 0.5 | |
| Flash point | ASTM D92 | °C | 225 | |
| Solubility in Trichloroethylene | ASTM D2042 | % | 99 |
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