Bitumen 80/100 is classified as a penetration grade bitumen, which is derived through the controlled refining of crude oil. As such, the product is classified as standard road grade bitumen. The product is highly demanded across the world due to the unique balance between mechanical and rheological characteristics. The classification of the product, denoted as 80/100, is derived from the penetration value of the product, which falls within a specified range of 0.1 mm units while the temperature is at 25 degrees centigrade. The range denotes the specific characteristic of the product, which is semi soft.

Generally, penetration grade bitumens are characterized on the basis of the level of hardness or softness, which is determined on the basis of the penetration value and softening point.

Typically, the softening point of Bitumen 80/100 ranges between 45°C and 52°C, providing an excellent balance of temperature resistance and flexibility within normal service temperatures.

Bitumen 80/100 Physical and Chemical Properties

This type of penetration Bitumen is thermoplastic, like synthetic resin. When heated, this Bitumen  softens and its viscosity decreases, thus becoming easily mixable and workable. After cooling, this bitumen becomes hard and gains its properties again. This type of property makes bitumen 80/100 useful in making hot mix asphalt and for coating processes.

The viscosity of Bitumen 80/100 is postulated as high and stable to ensure appropriate adhesion to aggregates, concrete, and mineral materials. The physical state of this bitumen product type is greatly dependent on temperature, crude oil types, and blending processes, particularly the characteristics of the available vacuum residue (vacuum bottom).

Bitumen 80/100 Performance by Climate Conditions

Bitumen 80/100 is especially appropriate for cold and moderate climate regions. In general, lower penetration grades are harder and more suitable for hot climates, while higher penetration grades such as 80/100 are softer and perform better in colder environments such as East Asia, Russia and Eastern European countries. The increased flexibility of Bitumen 80/100 reduces the risk of thermal cracking in low temperature conditions, making it a reliable choice for regions with seasonal temperature variations.

Bitumen 80/100 Test methods

This Type Bitumen is evaluated through penetration and softening point tests, and its classification is based solely on penetration range. Penetration testing measures the depth to which a standard loaded needle penetrates the bitumen sample vertically within 5 seconds at 25°C, providing a direct indication of hardness.

High quality Bitumen 80/100 is commonly produced in the Middle East, a leading crude oil producing region with strong refining capacity. Products supplied from this region are cost effective and widely accepted in international markets. Bitumen 80/100 supplied under ASTM specifications is typically accompanied by international inspection and quality certification to ensure compliance with industry standards.

In a Nutshell

Bitumen 80/100 is one of the most widely used penetration grade bitumens in the global market. Its thermoplastic behavior, strong viscosity and adaptability to colder climates make it an essential material for road construction, asphalt paving, and surface applications.

In addition to its technical advantages, its availability and cost efficiency particularly from Middle Eastern suppliers make Bitumen 80/100 a preferred choice for infrastructure projects worldwide.