Oxidized Bitumen 90/40 (Blown Asphalt 90/40) – Flexible High-Performance Bitumen for Specialized Applications
Description
Oxidized Bitumen 90/40 is a special flexible grade produced through controlled air-blowing process, featuring:
- Lower softening point (85-95°C) for enhanced workability
- Higher penetration (35-45 dmm) for superior flexibility
- Excellent weather resistance and long-term durability
This grade is specifically formulated for applications requiring exceptional flexibility combined with moderate heat resistance, making it ideal for variable climate conditions.
Key Performance Advantages
Outstanding Flexibility: Performs in temperature ranges from -20°C to +80°C
Superior Adhesion: Bonds effectively with various substrates
Waterproofing Excellence: Creates reliable moisture barriers
Durability: Resists cracking under thermal cycling
Primary Applications
Construction & Waterproofing
- Low-temperature roofing membranes
- Bridge expansion joints
- Underground waterproofing systems
Industrial Solutions
- Pipe wrapping in cold climates
- Tank base sealants
- Industrial floor coatings
Specialty Applications
- Modified bitumen production
- Pavement crack sealants
- Sound and vibration dampening materials
Packaging & Shipping
Standard Packaging Options
- 25kg polyethylene-lined kraft bags
- 180kg new steel drums (UN certified)
- 1MT bulk blocks (thermally wrapped)
Handling Requirements
- Pre-heating to 130-150°C before application
- Thermal protection recommended for cold weather transport
Shipping Information
- Transport Classification: Non-hazardous
- Optimal Bulk Shipping Temperature: 120-140°C
- Shelf Life: 24 months in original packaging
Technical Specifications
| Parameter | Specification | Test Method | Premium Grade |
| Softening Point (°C) | 85-95 | ASTM D36 | 90±2 |
| Penetration (25°C, 0.1mm) | 35-45 | ASTM D5 | 40±2 |
| Flash Point (°C) | ≥230 | ASTM D92 | ≥240 |
| Loss on Heating (%) | ≤0.8 | ASTM D6 | ≤0.6 |
| Ductility (25°C, cm) | ≥40 | ASTM D113 | ≥50 |
| Solubility in CS₂ (%) | ≥99.0 | ASTM D4 | ≥99.5 |
| Fraass Breaking Point (°C) | ≤-15 | EN 12593 | ≤-18 |
Quality Assurance
- Manufacturing Standards:
- ISO 9001:2015 Certified
- EN 13304 Compliance
- Rigorous Quality Control
- Performance Testing:
- Low-temperature flexibility tests
- Accelerated aging simulations
Special Features
- Available in polymer-modified versions
- Custom formulations upon request
- Technical support for application methods
