Blown asphalt, also known as oxidized asphalt, is a type of asphalt that has been treated with air to alter its properties. This process, known as oxidation, increases the viscosity and hardness of the asphalt, making it more durable and resistant to wear and tear.
Properties of Blown Asphalt
Blown asphalt has several distinct properties that make it useful for various applications. It has a higher softening point than regular asphalt, making it more resistant to heat and sunlight. It also has a lower penetration value, indicating its increased hardness and durability.
Uses of Blown Asphalt
Blown asphalt is commonly used in construction and repair projects, including:
- Road surfacing and maintenance
- Airport runways and taxiways
- Parking lots and driveways
- Roofing and waterproofing
Benefits of Blown Asphalt
Using blown asphalt offers several benefits, including:
- Increased durability and resistance to wear and tear
- Improved resistance to heat and sunlight
- Reduced maintenance costs
- Enhanced performance in high-traffic areas
