Penetration Grade Bitumen 20-30
What is Penetration Bitumen 20-30?
Penetration bitumen 20-30 is a type of bitumen that falls within the penetration grade bitumen category. It is a semi-solid, black or dark-brown material that is produced by refining crude oil. The "20-30" designation refers to the range of penetration values measured in tenths of a millimeter at a temperature of 25°C.
Penetration bitumen 20-30 has a relatively harder consistency than lower grade bitumens, such as 10-20. It is commonly used as a binder in hot mix asphalt for road construction and maintenance, as well as in other applications such as roofing, waterproofing, and sealing. It offers good adhesion, durability, and resistance to weathering and aging.
Like other penetration grade bitumens, the properties of bitumen 20-30 can vary depending on the source and refining process. It is typically tested according to industry standards to ensure that it meets the desired specifications for the intended application.
Quality of Penetration Bitumen 20-30
The quality of penetration bitumen 20-30 can vary depending on several factors, such as the source of the crude oil used to produce it, the refining process, and the testing and specifications used to measure its properties. In general, however, some of the key quality characteristics of penetration bitumen 20-30 include:
Penetration: Penetration bitumen 20-30 has a penetration value between 20 and 30 dmm at 25°C, as measured according to ASTM D5. This property measures the consistency and softness of the bitumen, with higher penetration indicating softer bitumen.
Softening Point: The softening point of bitumen 20-30 typically falls within the range of 46-52°C, as measured according to ASTM D36. This property measures the temperature at which the bitumen becomes soft and begins to flow.
Ductility: Bitumen 20-30 has a ductility value of at least 100 cm at 25°C, as measured according to ASTM D113. This property measures the bitumen's ability to stretch without breaking and is an indication of its flexibility and resistance to cracking.
Solubility: Bitumen 20-30 is typically 99.5% soluble in carbon disulfide, as measured according to ASTM D4. This property indicates the purity of the bitumen and its resistance to contamination.
Flash Point: The flash point of bitumen 20-30 is typically at least 225°C, as measured according to ASTM D92. This property indicates the temperature at which the bitumen can ignite when exposed to a flame.
Other properties: Other quality properties of bitumen 20-30 may include specific gravity, water content, loss on heating, and other physical and chemical characteristics.
Overall, the quality of penetration bitumen 20-30 is critical to ensuring its suitability for its intended application, such as in road construction, roofing, or waterproofing. Buyers should ensure that the bitumen they purchase meets the desired quality specifications and is tested according to industry standards.
History of Penetration Bitumen 20-30
The history of bitumen goes back thousands of years, with evidence of its use dating back to ancient civilizations in the Middle East and the Mediterranean. In those times, bitumen was primarily used as a waterproofing agent, for example, for boats, buildings, and roads.
In the modern era, the development of the petroleum industry in the late 19th and early 20th centuries led to the widespread use of bitumen as a binder in road construction. Penetration bitumen, including the 20-30 grade, was first developed in the early 20th century as a standardized way of measuring the consistency of bitumen.
In the following decades, the use of bitumen in road construction continued to grow, with the development of more advanced technologies and formulations. Today, bitumen is used in a wide range of applications, including road construction, waterproofing, roofing, and pavement preservation. The market for bitumen continues to expand, driven by the growth in infrastructure development and construction activities around the world.
The exact history of the specific penetration grade bitumen 20-30 is not clear, but it is likely that it was developed sometime in the mid-20th century as a standard specification for bitumen with a slightly harder consistency than lower-grade bitumens like 10-20. Since then, it has been widely used in road construction and other applications where a harder, more durable bitumen is needed.
Usages of Penetration Bitumen 20-30
Penetration Bitumen 20-30 is a type of bitumen commonly used in road construction and maintenance, as well as in waterproofing applications. Here are some of the specific usages of Penetration Bitumen 20-30:
Road Construction: Penetration Bitumen 20-30 is used as a binding agent in asphalt mixtures used in the construction and maintenance of roads, highways, and airport runways. It provides excellent adhesion and durability to the road surface.
Waterproofing: Penetration Bitumen 20-30 is used as a waterproofing material in various applications, including roofing, basement waterproofing, and bridge deck waterproofing. It provides excellent resistance to water and moisture.
Pipe Coating: Penetration Bitumen 20-30 is used as a coating material for pipes, providing excellent protection against corrosion and abrasion.
Pavement Sealing: Penetration Bitumen 20-30 is used to seal pavements, preventing water and debris from seeping through and damaging the surface.
Crack Filling: Penetration Bitumen 20-30 is used to fill cracks in pavements, providing a durable and long-lasting repair solution.
Adhesives: Penetration Bitumen 20-30 is used as an adhesive in various industries, including construction, automotive, and packaging.
Overall, Penetration Bitumen 20-30 is a versatile and widely-used material that provides excellent adhesion, durability, and waterproofing properties in various applications.
Packing of Penetration Bitumen 20-30
Penetration Bitumen 20-30 is typically packed in a variety of ways depending on the customer's requirements and the intended use of the material. Here are some common packing options for Penetration Bitumen 20-30:
Bulk Shipment: In bulk shipment, the Penetration Bitumen 20-30 is transported in a tanker truck or a vessel. This is typically used for large scale projects.
Drums: Penetration Bitumen 20-30 can be packed in 180 kg or 200 kg steel drums, which are commonly used for small to medium scale projects. The drums are tightly sealed to prevent any leakage.
Bags: Penetration Bitumen 20-30 can also be packed in 25 kg or 50 kg polypropylene bags, which are easy to handle and transport. This packing option is commonly used for small projects or for export purposes.
Block Form: Penetration Bitumen 20-30 can also be packed in block form, where it is molded into a solid block weighing 20-30 kg. This packing option is ideal for transport and storage.
Regardless of the packing option chosen, it is essential to ensure that the material is packed properly to prevent any leakage or damage during transport and storage. It is also important to store the material in a dry, cool, and well-ventilated area to maintain its quality and prevent any degradation.
Prices of Penetration Bitumen 20-30
The prices of Penetration Bitumen 20-30 can vary depending on various factors such as location, supply and demand, market conditions, and the quantity ordered. The prices are usually quoted in USD per metric ton (MT).
As of my knowledge cutoff in September 2021, the prices of Penetration Bitumen 20-30 ranged from around $300 to $450 per MT in the international market. However, it is important to note that these prices are subject to change and may have increased or decreased since then.
It is also worth mentioning that the prices of Penetration Bitumen 20-30 may vary depending on the type and quality of the bitumen, as well as the packaging and transportation costs. Therefore, it is always recommended to obtain a current quote from a reliable supplier to get an accurate price for the specific quantity and quality required.
Delivery time and Readiness of Penetration Bitumen 20-30
The delivery time and readiness of Penetration Bitumen 20-30 can vary depending on various factors such as the quantity ordered, location, supplier's inventory, and transportation arrangements.
In general, if the supplier has the required quantity of Penetration Bitumen 20-30 in stock, the delivery time can range from a few days to a week, depending on the location of the customer. However, if the supplier needs to produce or import the material, the delivery time may take longer, usually between two to four weeks.
It is important to note that the delivery time and readiness of Penetration Bitumen 20-30 can also depend on the transportation arrangements. For example, if the material needs to be transported by sea, the delivery time may be longer than if it is transported by land.
Therefore, it is always recommended to check with the supplier regarding the delivery time and readiness of Penetration Bitumen 20-30 before placing an order. This will help to ensure that the material is available when needed and that the project can be completed on time.
Analysis Table of Penetration Bitumen 20-30
| Property | Test Method | Specification |
| Penetration at 25°C | ASTM D5 | 20-30 (dmm) |
| Softening Point | ASTM D36 | 50-60 (°C) |
| Ductility at 25°C | ASTM D113 | >100 (cm) |
| Solubility in CS2 | ASTM D4 | >99.5 (%) |
| Flash Point (COC) | ASTM D92 | >220 (°C) |
| Drop in Penetration | ASTM D6 | 20 max (dmm) |
| Fraass Breaking Point | ASTM D647 | <-18 (°C) |
| Specific Gravity at 25°C | ASTM D70 | 1.01-1.05 |