Penetration Grade Bitumen 70/100
What is Penetration Grade Bitumen 70/100?
Penetration Grade Bitumen 70/100 refers to a type of bitumen, which is a black, viscous, and sticky substance that is a byproduct of petroleum refining. Bitumen is commonly used in road construction and waterproofing applications.
The number 70/100 represents the penetration grade of the bitumen, which is a measure of its consistency. Penetration grade refers to the depth in tenths of a millimeter to which a standard needle will penetrate vertically into a sample of bitumen under specific conditions of load, time, and temperature. A penetration grade of 70/100 means that the bitumen will have a penetration value between 70 and 100 at 25°C.
Penetration Grade Bitumen 70/100 is typically used for hot mix asphalt paving, as it has good workability, high durability, and resistance to deformation. It is also used for other applications such as waterproofing membranes, sealing compounds, and anti-corrosion coatings.
Quality of Penetration Grade Bitumen 70/100
The quality of Penetration Grade Bitumen 70/100 depends on a variety of factors such as its chemical composition, physical properties, and manufacturing process. In general, high-quality bitumen should have the following characteristics:
Penetration: The penetration value of Penetration Grade Bitumen 70/100 should be between 70 and 100 at 25°C. This ensures that the bitumen has the right consistency for its intended application.
Softening Point: The softening point of Penetration Grade Bitumen 70/100 should be between 45°C and 52°C. This indicates the temperature at which the bitumen will become soft and pliable.
Ductility: The ductility of Penetration Grade Bitumen 70/100 should be at least 100 cm at 25°C. This measures the extent to which the bitumen can be stretched without breaking.
Solubility: The solubility of Penetration Grade Bitumen 70/100 should be less than 0.3% in trichloroethylene. This ensures that the bitumen will not dissolve in solvents, which can affect its performance.
Flash Point: The flash point of Penetration Grade Bitumen 70/100 should be above 225°C. This measures the lowest temperature at which the bitumen can ignite and ensures that it is safe to handle.
In addition to these properties, high-quality Penetration Grade Bitumen 70/100 should also be free from impurities such as water, dust, and other foreign materials. It should also have a consistent color and texture, and be supplied in proper packaging to prevent contamination and deterioration during transport and storage.
History of Penetration Grade Bitumen 70/100
The quality of Penetration Grade Bitumen 70/100 depends on a variety of factors such as its chemical composition, physical properties, and manufacturing process. In general, high-quality bitumen should have the following characteristics:
Penetration: The penetration value of Penetration Grade Bitumen 70/100 should be between 70 and 100 at 25°C. This ensures that the bitumen has the right consistency for its intended application.
Softening Point: The softening point of Penetration Grade Bitumen 70/100 should be between 45°C and 52°C. This indicates the temperature at which the bitumen will become soft and pliable.
Ductility: The ductility of Penetration Grade Bitumen 70/100 should be at least 100 cm at 25°C. This measures the extent to which the bitumen can be stretched without breaking.
Solubility: The solubility of Penetration Grade Bitumen 70/100 should be less than 0.3% in trichloroethylene. This ensures that the bitumen will not dissolve in solvents, which can affect its performance.
Flash Point: The flash point of Penetration Grade Bitumen 70/100 should be above 225°C. This measures the lowest temperature at which the bitumen can ignite and ensures that it is safe to handle.
In addition to these properties, high-quality Penetration Grade Bitumen 70/100 should also be free from impurities such as water, dust, and other foreign materials. It should also have a consistent color and texture, and be supplied in proper packaging to prevent contamination and deterioration during transport and storage.
Usages of Penetration Grade Bitumen 70/100
Penetration Grade Bitumen 70/100 is a commonly used grade of bitumen that has a wide range of applications in various industries. Some of the major usages of Penetration Grade Bitumen 70/100 are:
Road construction: Penetration Grade Bitumen 70/100 is widely used as a binder in asphalt concrete for road construction. It provides the necessary strength and durability to the road surface and helps in reducing deformation and rutting.
Waterproofing: Penetration Grade Bitumen 70/100 is used in the construction industry as a waterproofing agent for roofs, foundations, and other structures. It provides a durable and reliable waterproofing layer that protects the building from water damage.
Pavement preservation: Penetration Grade Bitumen 70/100 is used in pavement preservation applications such as chip sealing, slurry sealing, and microsurfacing. It helps in sealing the existing pavement surface, filling cracks, and preventing moisture damage.
Industrial applications: Penetration Grade Bitumen 70/100 is used in various industrial applications such as pipeline coating, anti-corrosion coatings, and insulation. It provides a protective coating that helps in extending the life of the equipment and preventing corrosion.
Emulsions: Penetration Grade Bitumen 70/100 can be converted into emulsions by mixing it with water and an emulsifying agent. These emulsions can be used in various applications such as road maintenance, dust suppression, and soil stabilization.
Overall, Penetration Grade Bitumen 70/100 is a versatile and widely used material that plays a critical role in the construction, infrastructure, and industrial sectors.
Packing of Penetration Grade Bitumen 70/100
Penetration Grade Bitumen 70/100 is typically packed in either bulk or drums, depending on the quantity and the customer's preference. The most common packing options are:
Bulk: In the bulk option, the bitumen is transported in specialized tanker trucks or containers. This option is ideal for customers who require a large quantity of bitumen for their projects. Bulk shipments are typically made to construction sites or bitumen storage facilities.
Drums: Penetration Grade Bitumen 70/100 can also be packed in steel drums with a capacity of 150 kg or 180 kg. The drums are coated with a rust inhibitor to prevent corrosion and ensure the quality of the bitumen. This packing option is ideal for customers who require a smaller quantity of bitumen for their projects.
The drums are usually palletized for ease of transportation and storage. The pallets are then wrapped in plastic to prevent any contamination or moisture ingress. The drums are also marked with the grade, net weight, and production date for traceability.
In addition to bulk and drum packing options, Penetration Grade Bitumen 70/100 can also be packed in other forms such as jumbo bags or flexitanks, depending on the customer's requirements.
Prices of Penetration Grade Bitumen 70/100
The price of Penetration Grade Bitumen 70/100 can vary depending on a number of factors, including the global demand and supply, crude oil prices, transportation costs, and local taxes and regulations. The price can also vary depending on the quantity and packing option required by the customer.
As of my knowledge cutoff in September 2021, the price of Penetration Grade Bitumen 70/100 was around $300 to $400 per metric ton, but this can fluctuate over time. It's important to note that the price can also vary depending on the location of the customer and the supplier.
Customers who require Penetration Grade Bitumen 70/100 can contact bitumen suppliers or distributors to obtain a price quote based on their specific requirements. It's recommended to compare prices from multiple suppliers and negotiate to get the best price possible while ensuring the quality of the product.
Delivery time and Readiness of Penetration Grade Bitumen 70/100
The delivery time and readiness of Penetration Grade Bitumen 70/100 can vary depending on several factors, including the location of the customer, the availability of the product, and the quantity and packing option required.
In general, if the product is readily available and in stock, the delivery time can be relatively quick, usually within a few days or a week, depending on the location of the customer and the transportation arrangements. However, if the product is not readily available, the delivery time can take longer, usually several weeks or even months, as the supplier may need to produce or import the product.
Customers who require Penetration Grade Bitumen 70/100 should contact suppliers or distributors to inquire about the availability and delivery time of the product. It's important to plan ahead and order the product well in advance to avoid any delays or disruptions in the construction or manufacturing process. Additionally, it's recommended to confirm the delivery time with the supplier and to make sure that the product meets the required quality standards and specifications.
Analysis Table of Penetration Grade Bitumen 70/100
| Test Method | Specification |
| Penetration @ 25°C (0.1 mm) | 70-100 |
| Softening Point (°C) | 49-56 |
| Ductility @ 25°C (cm) | 100 min |
| Solubility in CS2 (%) | 99.5 min |
| Flash Point (°C) | 225 min |
| Drop in Penetration after Heating (%) | 20 max |
| Loss on Heating (%) | 0.2 max |
| Density @ 25°C (kg/m³) | 1,000-1,050 |