Penetration Bitumen Grade 50/70

What is Penetration Bitumen Grade 50/70?

Penetration Bitumen Grade 50/70 is a type of bitumen that is commonly used in road construction and pavement applications. Like other grades of bitumen, it is a highly viscous, black, semi-solid material that is produced by refining crude oil. The "50/70" in the name refers to the bitumen's penetration value, which is a measure of its consistency.

The penetration value is determined by measuring the depth in tenths of a millimeter that a standard needle will penetrate vertically into a sample of the bitumen under specific conditions of loading, time, and temperature. In the case of Penetration Bitumen Grade 50/70, the penetration value is between 50 and 70 decimeters.

Penetration Bitumen Grade 50/70 is a relatively softer and more flexible type of bitumen that is suitable for use in moderate climates and medium traffic conditions. It has good adhesion properties and is resistant to deformation, making it ideal for use in road surfaces, airport runways, and parking lots. It is also commonly used as a binder in asphalt mixtures, which are used to pave roads and other surfaces.

Quality of Penetration Bitumen Grade 50/70

Penetration Bitumen Grade 50/70 is a high-quality bitumen that has specific properties and characteristics that make it suitable for use in road construction and pavement applications. Some of the key quality characteristics of Penetration Bitumen Grade 50/70 include:

Penetration Value: The penetration value of Penetration Bitumen Grade 50/70 ranges between 50 and 70 decimeters, which indicates that it is a relatively softer and more flexible type of bitumen.Softening Point: The softening point of Penetration Bitumen Grade 50/70 is typically between 46°C and 56°C, which indicates that it has good heat resistance and can withstand high temperatures.

Ductility: The ductility of Penetration Bitumen Grade 50/70 is typically between 100 and 250 cm, which indicates that it has good elongation and can resist cracking and deformation.

Flash Point: The flash point of Penetration Bitumen Grade 50/70 is typically above 220°C, which indicates that it has good fire resistance and can withstand high temperatures without catching fire.

Solubility: The solubility of Penetration Bitumen Grade 50/70 is typically between 99.5% and 100%, which indicates that it is a highly pure and homogeneous material.

History of Penetration Bitumen Grade 50/70

The history of Penetration Bitumen Grade 50/70 dates back to the early 20th century when bitumen began to be widely used in road construction and pavement applications. In those early days, bitumen was primarily used as a binding agent in road surfaces and was typically produced by refining crude oil.Over time, the demand for bitumen grew as road networks expanded, and engineers began to experiment with different grades and formulations to improve their properties and performance. In the 1950s and 1960s, Penetration Bitumen Grade 50/70 emerged as a popular grade of bitumen that was widely used in road construction and pavement applications around the world.

The main advantage of Penetration Bitumen Grade 50/70 over other grades was its relatively soft and flexible consistency, which made it ideal for use in moderate climates and medium traffic conditions. It also had good adhesion properties and was resistant to deformation, making it a popular choice for use in road surfaces, airport runways, and parking lots.

Today, Penetration Bitumen Grade 50/70 remains a popular and widely used grade of bitumen, thanks to its proven performance and versatility in a wide range of road construction and pavement applications. It is produced by refining crude oil and is available from a wide range of suppliers around the world.

Usages of Penetration Bitumen Grade 50/70

Penetration Bitumen Grade 50/70 is a widely used grade of bitumen that is commonly used in road construction and pavement applications. Some of the most common usages of Penetration Bitumen Grade 50/70 include:

Asphalt Mixtures: Penetration Bitumen Grade 50/70 is often used as a binder in asphalt mixtures, which are used to pave roads, highways, and other surfaces. The bitumen helps to bind together the aggregates and provide a durable and weather-resistant surface.

Road Surfaces: Penetration Bitumen Grade 50/70 is often used as a surfacing material for roadways, airport runways, and parking lots. Its good adhesion properties and resistance to deformation make it an ideal choice for use in high-traffic areas.

Roofing and Waterproofing: Penetration Bitumen Grade 50/70 is often used in the construction of roofing and waterproofing membranes. Its good flexibility and resistance to water and weather make it an ideal choice for use in these applications.

Pipe Coating: Penetration Bitumen Grade 50/70 is sometimes used as a coating for pipes and other metal structures to protect them from corrosion and other forms of damage.

Industrial Applications: Penetration Bitumen Grade 50/70 is sometimes used in industrial applications, such as in the manufacture of adhesives, sealants, and coatings. Its good adhesion properties and durability make it a useful material in these applications.

Packing of Penetration Bitumen Grade 50/70

Penetration Bitumen Grade 50/70 is typically packed and transported in a variety of different containers, depending on the quantity and destination of the shipment. Some of the most common types of packaging for Penetration Bitumen Grade 50/70 include:

Drums: Penetration Bitumen Grade 50/70 is often packed in steel drums, which are typically 180 kg or 200 kg in capacity. The drums are usually lined with a plastic bag to prevent contamination of the bitumen.

Bulk Bags: For larger quantities of Penetration Bitumen Grade 50/70, it is often packed in bulk bags, which are typically 1 ton or 1.5 tons in capacity. The bags are usually made of woven polypropylene and are designed to be lifted by a forklift.

Tankers: For even larger quantities of Penetration Bitumen Grade 50/70, it is often transported in tankers, which are typically 20-25 tons in capacity. The tankers are usually made of steel or aluminum and are designed to be transported by truck or ship.

Flexitanks: For international shipments of Penetration Bitumen Grade 50/70, it is sometimes packed in flexitanks, which are large, collapsible containers that can hold up to 24 tons of liquid. The flexitanks are designed to fit inside standard shipping containers and can be easily transported by truck, rail, or ship.

Prices Penetration Bitumen Grade 50/70

The price of Penetration Bitumen Grade 50/70 can vary depending on a number of factors, including the global supply and demand for bitumen, the cost of crude oil, and the cost of production and transportation. In addition, local market conditions, such as taxes, tariffs, and transportation costs, can also affect the price of Penetration Bitumen Grade 50/70.

As of my knowledge cutoff date of September 2021, the average price of Penetration Bitumen Grade 50/70 was around USD 300-350 per metric ton FOB (Free on Board) from major producing countries such as Iran, Saudi Arabia, and the United Arab Emirates. However, prices can vary significantly depending on the specific supplier, the quantity ordered, and the terms of the sale.

It's worth noting that the prices of bitumen and other petroleum products are subject to fluctuations due to a range of factors, including global economic conditions, geopolitical events, and natural disasters. Therefore, the current price of Penetration Bitumen Grade 50/70 may be different than the prices stated above.

Delivery time and Readiness of Penetration Bitumen Grade 50/70

The delivery time and readiness of Penetration Bitumen Grade 50/70 can vary depending on a number of factors, including the location of the supplier, the quantity ordered, and the mode of transportation.In general, if the supplier has the product in stock, the delivery time can range from a few days to a few weeks, depending on the distance and mode of transportation. For example, if the supplier is located nearby, the delivery time may be shorter if the product is available. However, if the supplier is located in another country, the delivery time may be longer due to shipping and customs clearance.

If the supplier needs to produce or source the product, the delivery time may be longer. In this case, the supplier may need to produce the bitumen, which can take several days or weeks, depending on the capacity of the production facility and the demand for the product. Additionally, if the supplier needs to source the product from another supplier or country, the delivery time may also be longer.

Overall, the delivery time and readiness of Penetration Bitumen Grade 50/70 will depend on a number of factors, including the availability of the product, the location of the supplier, and the mode of transportation. It's important to work closely with the supplier to determine the expected delivery time and ensure that the product is delivered on schedule.

Specifications of Penetration Bitumen Grade 50/70

Penetration Bitumen Grade 50/70 is a type of bitumen commonly used in the construction industry for various applications such as road surfacing, waterproofing, and roofing. The following are the typical specifications of Penetration Bitumen Grade 50/70:

Penetration at 25°C: 50-70 dmm (0.1 mm)

Softening point: 50-70°C

Flashpoint: 250°C

Solubility in trichloroethylene: 99.0% min

Loss on heating: 0.2% max

Ductility at 25°C: 100 cm min

Density at 25°C: 1.01-1.06 g/cm³

Spot test: negative

These specifications may vary slightly depending on the producer, and some other specifications such as the sulfur content, viscosity, and performance grade may also be relevant in certain applications. It is important to consult with the supplier or manufacturer to ensure that the specific requirements of the application are met.

Analysis Table of Penetration Bitumen Grade 50/70

Property	Specification	Test Method
Penetration (@25°C)	50-70	ASTM D5
Softening Point (°C)	48-52	ASTM D36
Ductility (@25°C)	> 100 cm	ASTM D113
Solubility in CS2 (%)	> 99.5	ASTM D4
Flash Point (°C)	> 225	ASTM D92
Specific Gravity (@25°C)	1.01-1.06	ASTM D70

The Penetration value is the depth in tenths of a millimeter to which a standard needle will penetrate vertically under specified conditions of loading, time, and temperature.

The Softening point is the temperature at which the bitumen becomes soft enough to allow a standard needle to penetrate a specified distance under a standard load.

Flashpoint is the minimum temperature at which bitumen gives off vapor in sufficient concentration to form an ignitable mixture with air near the surface of the liquid.

Solubility in trichloroethylene is the percentage by mass of the bitumen that is soluble in trichloroethylene at a specified temperature.

Loss on heating is the percentage by mass of the bitumen lost due to heating under specified conditions.

Ductility at 25°C is the distance in centimeters to which a standard briquette of the bitumen will elongate before breaking under specified conditions of loading, time, and temperature.

Density at 25°C is the mass per unit volume of the bitumen at a specified temperature.

Spot test is used to determine the presence of impurities or adulterants in the bitumen.