Oxidized Asphalt 105/15, also known as blown asphalt, is a refined petroleum product manufactured by blowing hot air through penetration grade asphalt under controlled temperature and pressure conditions. This oxidation process alters the chemical structure of the base asphalt, increasing its softening point while reducing penetration, resulting in a stable, durable, and heat-resistant material suitable for a wide range of industrial and construction applications.

The grade 105/15 refers to a softening point of approximately 105°C and a penetration value of 15 (0.1 mm at 25°C). This combination provides an optimal balance between hardness and flexibility, making Oxidized Asphalt 105/15 ideal for applications that require resistance to elevated temperatures while maintaining sufficient workability and adhesion.

Oxidized Asphalt 105/15 is typically produced from high-quality penetration grade asphalt such as 60/70. During production, molten asphalt is subjected to a controlled flow of hot air in oxidation reactors. Key process parameters, including airflow rate, oxidation time, and temperature, are precisely regulated to ensure consistent physical properties and uniform quality across all production batches.

One of the primary advantages of Oxidized Asphalt 105/15 is its improved thermal stability compared to unoxidized asphalt. The material exhibits reduced temperature sensitivity, meaning it is less likely to soften, flow, or deform when exposed to high ambient temperatures or direct sunlight. This characteristic makes it particularly suitable for use in hot climates and industrial environments.

Oxidized Asphalt 105/15 offers excellent adhesion to a variety of substrates, including concrete, metal, masonry, and bituminous surfaces. When applied, it forms a continuous, impermeable layer that effectively resists demonstrating high resistance to moisture penetration. This property makes it a reliable choice for waterproofing systems, protective coatings, and sealing applications.

In roofing systems, Oxidized Asphalt 105/15 is commonly used in the production of roofing membranes, roofing felts, and bituminous sheets. Its ability to maintain dimensional stability and resist flow at elevated temperatures ensures long-term performance and durability. The material’s strong bonding capability allows it to adhere securely to roofing substrates, contributing to improved resistance against weathering and environmental stress.

For pipe coating and corrosion protection, Oxidized Asphalt 105/15 provides an effective barrier against moisture, soil chemicals, and corrosive environments. It is widely applied to steel pipelines, tanks, and industrial equipment to extend service life and reduce maintenance requirements. The asphalt coating acts as a protective shield that minimizes oxidation and external corrosion.

Oxidized Asphalt 105/15 is also extensively used in industrial insulation applications. It serves as a protective and insulating layer for storage tanks, vessels, ducts, and pipelines operating at elevated temperatures. The asphalt’s resistance to heat and environmental exposure helps maintain insulation efficiency and protect underlying materials from thermal degradation.

In the paint and coating industry, Oxidized Asphalt 105/15 is used as a base material for manufacturing bituminous paints, primers, and protective coatings. These coatings are commonly applied to metal structures, bridges, roofs, and industrial facilities where resistance to corrosion, chemicals, and weather conditions is required. The moderate penetration of this grade allows for smooth application and uniform film formation.

The adhesive and sealing properties of Oxidized Asphalt 105/15 make it suitable for use in construction adhesives, joint sealants, and crack-filling compounds. It is often applied in expansion joints, structural joints, and maintenance projects where durability and resistance to environmental changes are essential. The material maintains its adhesive performance over a wide temperature range.

Oxidized Asphalt 105/15 is also used in hydraulic and civil engineering projects such as canal lining, dam protection, and water containment systems. Its waterproofing capability and resistance to water pressure help prevent leakage and structural damage in water-related infrastructure, ensuring long-term reliability and safety.

For proper application, Oxidized Asphalt 105/15 should be heated gradually using appropriate heating equipment to reach the required viscosity. Excessive overheating should be avoided, as it may adversely affect the physical properties of the asphalt. When applied under recommended conditions, the product delivers consistent performance and long service life.

Storage of Oxidized Asphalt 105/15 should be in a dry, covered area, protected from direct sunlight, rain, and moisture. Proper storage conditions help preserve the product’s physical characteristics and ensure consistent quality over extended periods. When stored correctly, the asphalt retains its usability and performance for long-term use.

Oxidized Asphalt 105/15 is available in various packaging options to meet different logistical and project requirements, including 25 kg meltable bags, kraft bags, steel drums, jumbo bags, and bulk supply. Palletized packing is commonly used for containerized shipments, ensuring safe transportation and efficient handling during international export.

The product is manufactured in accordance with ASTM international standards and undergoes rigorous quality control testing, including softening point, penetration, ductility, flash point, solubility, and loss on heating. These quality checks ensure that Oxidized Asphalt 105/15 meets global specifications and delivers reliable performance in demanding applications.

Due to its balanced physical properties, durability, and cost-effectiveness, Oxidized Asphalt 105/15 is widely used in construction, industrial manufacturing, infrastructure development, and maintenance projects worldwide. It is a preferred choice for applications requiring thermal resistance, strong adhesion, and long-term waterproofing performance.

Specification of oxidized bitumen 105/15

Analysis oxidized bitumen 105/15